This gas leak position estimation device is provided with a specifying unit and a first determination unit. The specifying unit specifies a gas region image indicating a region in which the gas hangs in an image obtained by photographing a monitoring region. The first determination unit determines a pixel indicating a gas leak estimated position estimated to be a position at which the gas is leaking out from a plurality of pixels constituting an outline of the gas region image.
G01N 21/3504 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for analysing gases, e.g. multi-gas analysis
An image pickup lens includes: a first lens with a positive power, including a convex surface facing the object side; an aperture stop; a second lens with a negative power, including a concave surface facing the image side; a third lens with a positive or negative power; a fourth lens with a positive power, including a convex surface facing the image side; and a fifth lens with a negative power, including a concave surface facing the image side. The surface of the fifth lens facing the image side is an aspheric surface and includes an inflection point. The image pickup lens satisfies the predetermined condition relating to a focal length of the first lens.
Provided is a small-sized five-element image pickup lens which ensures a sufficient lens speed of about F2 and exhibits various aberrations being excellently corrected. The image pickup lens is composed of, in order from the object side, a first lens with a positive refractive power, including a convex surface facing the object side; a second lens with a negative refractive power, including a concave surface facing the image side; a third lens with a positive or negative refractive power; a fourth lens with a positive refractive power, including a convex surface facing the image side; and a fifth lens with a negative refractive power, including a concave surface facing the image side. The image-side surface of the fifth lens has an aspheric shape, and includes an inflection point at a position excluding an intersection point with the optical axis.
G02B 13/18 - Optical objectives specially designed for the purposes specified below with lenses having one or more non-spherical faces, e.g. for reducing geometrical aberration
Provided is a small-sized five-element image pickup lens which ensures a sufficient lens speed of about F2 and exhibits various aberrations being excellently corrected. The image pickup lens is composed of, in order from the object side, a first lens with a positive refractive power, including a convex surface facing the object side; a second lens with a negative refractive power, including a concave surface facing the image side; a third lens with a positive or negative refractive power; a fourth lens with a positive refractive power, including a convex surface facing the image side; and a fifth lens with a negative refractive power, including a concave surface facing the image side. The image-side surface of the fifth lens has an aspheric shape, and includes an inflection point at a position excluding an intersection point with the optical axis.
G11B 7/00 - Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation, reproducing using an optical beam at lower powerRecord carriers therefor
6.
Image pickup lens, image pickup apparatus, and mobile terminal
An image pickup lens includes: a first lens with a positive power, including a convex surface facing the object side; an aperture stop; a second lens with a negative power, including a concave surface facing the image side; a third lens with a positive or negative power; a fourth lens with a positive power, including a convex surface facing the image side; and a fifth lens with a negative power, including a concave surface facing the image side. The surface of the fifth lens facing the image side is an aspheric surface and includes an inflection point. The image pickup lens satisfies the predetermined condition relating to a focal length of the first lens.
An objective lens a first optical path difference providing structure in which a first basic structure and a second basic structure are overlapped with each other. The first basic structure is a blaze-type structure which emits a Xth-order diffracted light flux, when the first light flux passes through the first basic structure, where the value of X is an odd integer. At least a part of the first basic structure arranged around an optical axis includes a step facing an opposite direction to the optical axis. The second basic structure is a blaze-type structure which emits a Lth-order diffracted light flux, when the first light flux passes through the second basic structure, where the value of L is an even integer. At least a part of the second basic structure arranged around the optical axis includes a step facing the optical axis.
G11B 7/00 - Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation, reproducing using an optical beam at lower powerRecord carriers therefor
−1[1/(2·FI)]+Δ}), where, when mirror surfaces forming pixels are referred to as pixel surfaces, mirror-reflected light on the pixel surface along the illumination axis is referred to as mirror-reflected light, and angles between, of the diffracted light produced as a result of the rays along the illumination axis being diffracted, the part traveling in a direction closest to the mirror-reflected light and the normal line to the image display surface is defined as diffraction angles βB, βG, and βR, then Δ represents the largest of the angles βB, βG, and βR, FI represents f-number of illumination light, and FP represents f-number of projection system.
A zoom lens has first through fourth lens groups from the object side to the image side, and changes the magnification by changing their intervals. The first and third lens groups and the second and fourth lens groups have negative and positive powers, respectively. When changing the magnification from the wide-angle end to the telescopic end, the interval between the first and the second lens groups is reduced. The first lens group includes a reflective optical element. The second lens group includes at least two lenses, and the lens nearest to the image is a single plastic positive lens. The third lens group is configured by a single plastic negative lens. When the focal length of the single lens nearest to the image in the second lens group is defined as f2L and the focal length of the third lens group is defined as f3, “0.60<|f2L/f3|<1.60” is satisfied.
H04N 5/262 - Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects
G03B 17/00 - Details of cameras or camera bodiesAccessories therefor
G02B 15/177 - Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective with interdependent non-linearly related movements between one lens or lens group, and another lens or lens group having a negative front lens or group of lenses
G02B 15/167 - Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective with interdependent non-linearly related movements between one lens or lens group, and another lens or lens group having a first movable lens or lens group and a second movable lens or lens group, both in front of a fixed lens or lens group having an additional fixed front lens or group of lenses
10.
Lens assembling method, lens assembly, and image capturing device with the lens assembly
A lens assembling method for assembling a first lens and a second lens where the first lens has a first mark on a first surface thereof and a second mark on a second surface opposite to the first surface, and the second lens has a third mark on a first surface thereof, the lens assembling method including: a first step of aligning a position of one of the first mark and second marks of the first lens with a position of the third mark of the second lens; and a second step of aligning a position of the other one of the first and second marks of the first lens with the position of the third mark of the second lens, while keeping the position alignment performed in the first step.
G03B 21/00 - Projectors or projection-type viewersAccessories therefor
G02B 26/08 - Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
G03B 33/12 - Simultaneous recording or projection using beam-splitting or beam-combining systems, e.g. dichroic mirrors
H04N 9/31 - Projection devices for colour picture display
G02B 27/00 - Optical systems or apparatus not provided for by any of the groups ,
G02B 27/09 - Beam shaping, e.g. changing the cross-sectioned area, not otherwise provided for
12.
Image pickup lens, image pickup apparatus, and mobile terminal
The image pickup lens is composed of, in order from the object side, an aperture stop; a first lens with positive refractive power, including a convex surface facing the object side; a second lens with negative refractive power, including a concave surface facing an image side; a third lens with positive refractive power, including a convex surface facing the image side; a fourth lens with positive refractive power, having a meniscus shape including a convex surface facing the image side; and a fifth lens with negative refractive power, including a concave surface facing the image side. The image pickup lens satisfies conditional expressions relating to curvature radiuses of the object-side surface and the image-side surface of the fourth lens, a distance on an optical axis from the aperture stop to a focal point at the image side, and a focal length of the total system of the image pickup lens.
G02B 13/16 - Optical objectives specially designed for the purposes specified below for use in conjunction with image converters or intensifiers
G02B 9/60 - Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or – having five components only
G02B 15/14 - Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective
Provided is a compact zoom lens with a high resolving power, a large aperture, and a high variable power. The zoom lens includes a positive first lens group, a moving negative second lens group, a stationary positive third lens group, and a moving positive fourth lens group. The first lens group includes a negative eleventh lens, a positive twelfth lens, and a positive thirteenth lens. The second lens group is composed of a negative twenty-first lens, a negative twenty-second lens, a positive twenty-third lens, and a negative twenty-fourth lens. The third lens group includes a positive thirty-first lens, a positive thirty-second lens, and a negative thirty-third lens. The fourth lens group is composed of a positive forty-first lens having one or more aspheric surfaces. The zoom lens satisfies the prescribed conditional expressions.
G02B 15/14 - Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective
15.
Image-taking lens system, image-taking device provided with an image-taking lens system, and portable terminal provided with an image-taking device
An image pickup lens comprises a first lens (L1) having a positive refractive power, an aperture stop (s3), a second lens (L2) having a negative refractive power and having a concave surface facing the image side, a third lens (L3) having a positive refractive power, and a fourth lens (L4) having a negative refractive power and having a concave surface facing the image side. The image pickup lens satisfies predetermined formulae.
G02B 13/18 - Optical objectives specially designed for the purposes specified below with lenses having one or more non-spherical faces, e.g. for reducing geometrical aberration
G02B 9/34 - Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or – having four components only
16.
Image pickup lens, image pickup device provided with image pickup lens, and mobile terminal provided with image pickup device
Provided is an image pickup lens that forms an image on an image pickup element with light from a subject. In the image pickup lens, a lens that is disposed on an image pickup element side is fixed in position, and a focusing lens group having a plurality of lenses including a lens closest to the subject is moved in an optical axis direction, thereby performing focusing.
G02B 3/02 - Simple or compound lenses with non-spherical faces
G02B 9/00 - Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or –
G02B 13/18 - Optical objectives specially designed for the purposes specified below with lenses having one or more non-spherical faces, e.g. for reducing geometrical aberration
17.
Optical connector and optical tomographic imaging apparatus
Provided are an optical connector and an optical tomographic imaging apparatus, by which no noise occurs and a high quality image without a distortion can be obtained. In the optical connector, optical fibers are inserted into a lumen of a tube from opposite ends thereof; one of the optical fibers is fixed to the tube and the other optical fiber is held so as to be rotatable relative to the tube; an end of one of the optical fibers is separated from an end of the other optical fiber to form a gap therebetween in the lumen; a connecting section which connects the exterior space of the tube and the gap is formed; and a liquid or fluid made of a material which can transmit light is held in the exterior space, the gap, and the connecting section. Consequently, a significant pressure variation in matching liquid does not occur if the distance between the facing optical fibers changes.
Provided is a small-sized five-element image pickup lens which ensures a sufficient lens speed of about F2 and exhibits various aberrations being excellently corrected. The image pickup lens is composed of, in order from the object side, a first lens with a positive refractive power, including a convex surface facing the object side; a second lens with a negative refractive power, including a concave surface facing the image side; a third lens with a positive or negative refractive power; a fourth lens with a positive refractive power, including a convex surface facing the image side; and a fifth lens with a negative refractive power, including a concave surface facing the image side. The image-side surface of the fifth lens has an aspheric shape, and includes an inflection point at a position excluding an intersection point with the optical axis.
G03B 17/00 - Details of cameras or camera bodiesAccessories therefor
G02B 15/14 - Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective
G02B 13/02 - Telephoto objectives, i.e. systems of the type + – in which the distance from the front vertex to the image plane is less than the equivalent focal length
19.
Image pickup lens, image pickup apparatus and mobile terminal
Provided is a small-sized five-element image pickup lens which ensures a sufficient lens speed of about F2 and exhibits various aberrations being excellently corrected. The image pickup lens is composed of, in order from the object side, a first lens with a positive refractive power, including a convex surface facing the object side; a second lens with a negative refractive power, including a concave surface facing the image side; a third lens with a positive or negative refractive power; a fourth lens with a positive refractive power, including a convex surface facing the image side; and a fifth lens with a negative refractive power, including a concave surface facing the image side. The image-side surface of the fifth lens has an aspheric shape, and includes an inflection point at a position excluding an intersection point with the optical axis.
G02B 15/14 - Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective
G02B 13/02 - Telephoto objectives, i.e. systems of the type + – in which the distance from the front vertex to the image plane is less than the equivalent focal length
G02B 7/28 - Systems for automatic generation of focusing signals
20.
Image pickup optical system, image pickup optical device, and digital equipment
An image pickup optical system OP includes first and second prisms P1, P2 for bending incident light at an almost right angle. Optical axis AX at the incident surface of first prism P1 and optical axis AX at the outgoing surface of second prism P2 are almost parallel with each other. There is a lens element forming at least one power group on the optical path between first and second prisms P1, P2, wherein a power group closest to the incident surface of second prism P2 is a positive power group. The incident surface of second prism P2 has a concaved surface shape facing the object side, and the following conditional expressions are satisfied: −4.2
G02B 17/00 - Systems with reflecting surfaces, with or without refracting elements
G02B 15/14 - Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective
Provided is a small-sized five-element image pickup lens which ensures a sufficient lens speed of about F2 and exhibits various aberrations being excellently corrected. The image pickup lens is composed of, in order from the object side, a first lens with a positive refractive power, including a convex surface facing the object side; a second lens with a negative refractive power, including a concave surface facing the image side; a third lens with a positive or negative refractive power; a fourth lens with a positive refractive power, including a convex surface facing the image side; and a fifth lens with a negative refractive power, including a concave surface facing the image side. The image-side surface of the fifth lens has an aspheric shape, and includes an inflection point at a position excluding an intersection point with the optical axis.
G02B 13/18 - Optical objectives specially designed for the purposes specified below with lenses having one or more non-spherical faces, e.g. for reducing geometrical aberration
22.
Image pickup lens, image pickup apparatus and mobile terminal
Provided is a small-sized five-element image pickup lens which ensures a sufficient lens speed of about F2 and exhibits various aberrations being excellently corrected. The image pickup lens is composed of, in order from the object side, a first lens with a positive refractive power, including a convex surface facing the object side; a second lens with a negative refractive power, including a concave surface facing the image side; a third lens with a positive or negative refractive power; a fourth lens with a positive refractive power, including a convex surface facing the image side; and a fifth lens with a negative refractive power, including a concave surface facing the image side. The image-side surface of the fifth lens has an aspheric shape, and includes an inflection point at a position excluding an intersection point with the optical axis.
G02B 13/02 - Telephoto objectives, i.e. systems of the type + – in which the distance from the front vertex to the image plane is less than the equivalent focal length
There is disclosed a probe (50) for directing light to an object to be measured and receiving light returned from the object to be measured, the probe including: an optical path (21) for transmitting light from a light source (10); a mirror member (52) for reflecting the light transmitted through the optical path (21); and a rotational oscillation mechanism (56) for rotatably oscillating the mirror member (52) and a tip end portion of the optical path (21) about a longitudinal axis of the optical path (21); wherein the rotational oscillation mechanism (56) is adapted to perform the rotational oscillation within a range defined by a torsional elasticity limit of the optical path (21). This configuration can provide an optical rotary probe with a simple structure and with high reliability, which is capable of suppressing optical losses and reflection ghosts.
A61B 1/00 - Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopesIlluminating arrangements therefor
24.
Objective optical element and optical pickup device
G11B 7/00 - Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation, reproducing using an optical beam at lower powerRecord carriers therefor
25.
Process for producing polarizing plate, polarizing plate produced by the process, and liquid crystal display device using the polarizing plate
Disclosed is a process for producing a polarizing plate which is transparent, has resistance against high temperatures and high humidity, and is significantly improved in brittleness. Specifically disclosed is a process for producing a polarizing plate comprising two polarizing plate protective films and a polarizer intercalated between the polarizing plate protective films, which is characterized in that at least one of the two polarizing plate protective films is an acrylic film comprising an acrylic resin (A) and a cellulose ester resin (B) at a ratio of 85:15 to 55:45 by mass, and the acrylic film is drawn in at least one direction at a draw ratio of 10 to 150% inclusive and is subsequently bonded to the polarizer with an aqueous adhesive agent.
B32B 37/00 - Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
B29C 65/00 - Joining of preformed partsApparatus therefor
26.
LIGHT DIFFUSING FILM, METHOD FOR MANUFACTURING SAME, AND POLARIZING PLATE, ROLL-SHAPED POLARIZING PLATE, AND LIQUID CRYSTAL DISPLAY DEVICE WHICH EMPLOY SAME
Disclosed is a light diffusing film which is improved to provide adequate moisture permeability and outstanding productivity, and reduced in variations of brightness and adhesion. Also disclosed is a method for manufacturing the light diffusing film. Further disclosed are a polarizing plate, a roll-shaped polarizing plate, and a liquid crystal display device, which employ the light diffusing film. The light diffusing film diffuses beams of light from a light source, and has a structure of bumps and dips at least on one of the surfaces of the light diffusing film. The light diffusing film is characterized in that in a Fourier transform image that is based on an image acquired by measuring the structure of bumps and dips under a 3D measurement laser microscope, the average pitch of the bumps and dips falls in the range of 50nm to 3μm and the average value of the differences (depths) between the highest point of a bump and the lowest point of a dip falls in the range of 5nm to 5μm.
H01L 51/50 - Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof specially adapted for light emission, e.g. organic light emitting diodes (OLED) or polymer light emitting devices (PLED)
Provided is a method for producing a film with an excellent conveyance property wherein variations in optical value and occurrence of foreign matter bright spots are sufficiently prevented at the end of the film. The method for producing the film comprises: a casting step for casting a solution produced by dissolving at least a polymeric material in a solvent on a support; a solvent evaporation step for evaporating the solvent from the cast solution on the support to form a film; a peeling step for peeling the film from the support; and a drawing step for introducing the film into a tenter and drawing the film at least in the width direction while conveying the film. Said method for producing the film is characterized in that the length (W1) in the width direction of the film when the film is grasped and the length (W2) in the width direction of the film when the film is introduced into the tenter satisfy a relational expression: 0.97≤W2/W1≤1.03, and the temperature (T1) of a grasping tool when the film is grasped and the temperature (T2) of the end of the film when the film is grasped satisfy a relational expression: 0≤T1-T2≤100.
B29C 55/08 - Shaping by stretching, e.g. drawing through a dieApparatus therefor of plates or sheets uniaxial, e.g. oblique transverse to the direction of feed
B29K 1/00 - Use of cellulose, modified cellulose or cellulose derivatives, e.g. viscose, as moulding material
Disclosed is a method for producing a glass substrate which can be used as a substrate for a thermally assisted magnetic recording medium and which has a magnetic recording layer formed on the surface thereof. The method involves a substrate washing step during the process for the production of the glass substrate, wherein the substrate washing step comprises washing the substrate with a detergent and subsequently removing any organic material from the substrate.
Provided is a glass substrate which is used as a substrate for a thermally assisted magnetic recording medium, wherein a magnetic recording layer is a film which is formed on the glass substrate and then subjected to a post-heat treatment, and the recording layer satisfies Ts / Tg > 0.8 (formula 1) and ΔRMS < 0.1 Mpa (formula 2) when Ts is the maximum temperature reached by the glass substrate during the post-heat treatment, Tg is the glass transition temperature of the glass substrate, and ΔRMS is the amount of change in the deviation of the stress distribution over the entire surface of the glass substrate before the post-heat treatment and after the post-heat treatment of the magnetic recording layer.
Disclosed is a method for manufacturing optical film which ensures manufacturing of optical film having stabilized performance when the optical film is manufactured by solution casting. To this end, the method for manufacturing optical film employs a solution casting apparatus to manufacture thin optical film. The solution casting apparatus performs a casting step of allowing a dope of raw resin dissolved in a solvent to be cast as dope film from a die onto an endless-belt-shaped support to form a web; and at least steps of drawing, drying, and winding the web after the web is stripped from the endless-belt-shaped support. The die has a pressure reducing means upstream in the direction of travel of the endless-belt-shaped support and a pressure applying means downstream in the direction thereof, so that the absolute value of ΔPH/ΔPL ranges from 0.02 to 1.0, where ΔPL is the difference between the pressure caused by the pressure reducing means and the atmospheric pressure and ΔPH is the difference between the pressure caused by the pressure applying means and the atmospheric pressure.
B29C 41/28 - Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped articleApparatus therefor for making articles of indefinite length by depositing flowable material on an endless belt
B29C 41/36 - Feeding the material on to the mould, core or other substrate
Disclosed are: a polarizing plate which has small individual variation from the viewpoint of display uniformity; and a liquid crystal display device. Specifically disclosed is a roll-like polarizing plate that comprises a cellulose ester film, which contains a cellulose ester, an amphiphilic additive, a hydrolysis inhibitor and a retardation controlling agent, on at least one surface of a polarizer that contains a polyvinyl alcohol resin. The roll-like polarizing plate is characterized by satisfying specific conditions.
Disclosed is a polarizing plate with a retardation film, which has good viewing angle under high temperature and high humidity conditions, while being free from occurrence of cloud unevenness and corner unevenness. Specifically disclosed is a polarizing plate with a retardation film, which is obtained by bonding a biaxially stretched polarizer protective film that has a water vapor permeability of 0-10 g/(m2∙d) to one surface of a polarizer that contains a polyvinyl alcohol resin. The polarizing plate with a retardation film is characterized in that a retardation film, which has a water vapor permeability of 800-2,000 g/(m2∙d), is arranged on the other surface of the polarizer.
Disclosed is an apparatus for driving an actuator, which is provided with: a constant current circuit, which supplies a constant current to an SMA wire; a resistance value detecting circuit (111), which detects the resistance value of the SMA wire when a current is carried in the wire, and which adjusts, corresponding to the detected resistance value, the value of the constant current flowing in the constant current circuit; and a pulse width modulation circuit (110), which performs, on the basis of a difference between the potentials at both the ends of the SMA wire, on/off control of a current source transistor of the constant current circuit by means of pulse signals with modulated pulse width.
F03G 7/06 - Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for using expansion or contraction of bodies due to heating, cooling, moistening, drying, or the like
G02B 7/04 - Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
34.
SCANNING OPTICAL SYSTEM AND PROJECTOR PROVIDED WITH SAME
Disclosed is a scanning optical system, which has a reduced size and improved accuracy of having an optical component assembled thereto, and furthermore, which has an optical axis easily adjusted. Also disclosed is a projector provided with the scanning optical system. The scanning optical system (10, 20) is provided with: a laser light source section (1) which outputs laser light; a scanning section (2), which has a scanning mirror (3) that two-dimensionally scans the laser light toward the projection surface; and an optical component which guides the outputted laser light to the predetermined direction. The projector (100) is provided with the scanning optical system. The scanning optical system (10, 20) is provided with a projection member (projection prism (81, 83, 84)), which projects the laser light toward the scanning mirror (3), said laser light having been guided by the optical component, and the projection member is fixed on a substrate that constitutes the scanning section (2).
Disclosed is a mold cutting method wherein a mold is cut in such a way that a cutting tool (132) is moved while being rotated. The mold cutting method is provided with a process wherein the cutting tool (132) is moved in a first direction (146), and a process wherein the cutting tool (132) is moved in a second direction (148) which is opposite to the first direction (146), so that the cutting tool (132) will trace a movement trajectory along the first direction (146).
Disclosed is an optical film containing an acrylic resin (A) and a cellulose ester resin (B) in a proportion by mass of 95:5 - 30:70. The acrylic resin (A) is represented by general formula (1) and has a weight average molecular weight Mw of 80,000 - 1,000,000. The optical film is characterized by containing 1 - 30% of the total mass of the optical film by mass of an additive agent (C) obtained by polymerization of a vinyl monomer having amide bonds, or copolymerization of a vinyl monomer having amide bonds and a random vinyl monomer and by this additive agent having a weight average molecular weight Mw of 1000 - 55,000. General formula (1): -(MMA)p-(X)q-(Y)r-
B32B 23/04 - Layered products essentially comprising cellulosic plastic substances comprising such substance as the main or only constituent of a layer, next to another layer of a specific substance
Disclosed is a method for producing a polarizing plate which uses a film that contains an acrylic resin and a cellulose ester resin as a protective film, has sufficient adhesion between a polarizer and the protective film, and is reduced in image unevenness. Also disclosed are: a polarizing plate which is produced by the production method; and a liquid crystal display device using the polarizing plate. Specifically disclosed is a method for producing a polarizing plate, which comprises: a surface modification step; a bonding step wherein a protective film is bonded to a surface of a polarizer; and a drying step. The method for producing a polarizing plate is characterized in that (1) the protective film contains (A) an acrylic resin, (B) a cellulose ester resin and (C) a vinyl polymer having an amide bond, and (2) in the drying step, the temperature and the residence time are respectively within predetermined ranges.
Provided is a single-focus optical system which is configured, in order from the object side to the image side, of a first to third lens groups and in which the first lens group and the third lens group are fixed with respect to a predetermined imaging surface, and the second lens group is moved in the optical axis direction to focus, wherein the first lens group comprises at least one positive lens and at least one negative lens, the second lens group comprises at least one positive lens, the third lens group comprises at least one lens having at least one aspheric surface and having a positive optical power at a peripheral portion thereof and 5<|Δv1|<70 is satisfied where Δv1 is a maximum value of the Abbe number difference between the positive lens and the negative lens in the first lens group.
Disclosed is an objective lens wherein an effective diameter φ1 (mm) when a first optical disc is in use satisfies formula (1), wherein it is possible to ensure an adequate working distance when a third optical disc is in use by increasing the number of annular sections and increasing the paraxial power of the diffraction. It is further possible to increase efficiency of usage of light that passes through a central region by minimizing the step difference dt (nm) of a first optical path difference giving structure such that formula (2) is satisfied, and it is possible moreover, to shift a light focus location of a third light beam that passes through the central region without superpositioning an optical path difference giving structure having an aperture stop function in the central region, thereby allowing the step difference dt of a second optical path difference giving structure to be minimized such that the formula (2) is satisfied as a result: 1.9 ≤ φ1 ≤ 3.0 (1); dt < 5.0 × λ1/(n1-1) (2); wherein n1 is the refraction of the objective lens on a first wavelength.
G02B 13/00 - Optical objectives specially designed for the purposes specified below
G02B 13/18 - Optical objectives specially designed for the purposes specified below with lenses having one or more non-spherical faces, e.g. for reducing geometrical aberration
40.
IMAGING DEVICE AND METHOD FOR CORRECTING TEMPERATURE CHARACTERISTICS OF IMAGING DEVICE
Disclosed is an imaging device equipped with an imaging element that has photoelectric conversion characteristics that switch between a plurality of differing characteristics in accordance with the amount of incident light and that images a subject image formed in an optical imaging system and outputs an image signal, wherein the imaging device is equipped with a photoelectric conversion characteristic detection unit that detects the photoelectric conversion characteristics of the imaging element, and a photoelectric conversion characteristic correction unit that corrects the photoelectric conversion characteristics of the imaging element on the basis of the detection results of the photoelectric conversion characteristic detection unit in a manner such that the photoelectric conversion characteristics approach standard photoelectric conversion characteristics. As a result, an imaging device capable of continually imaging at a prescribed dynamic range regardless of the temperature characteristics of the photoelectric conversion characteristics of the imaging element and a method for correcting the temperature characteristics of the imaging device can be provided.
The actual measured light utilization efficiency of the disclosed objective lens is at least 50% for Blu-ray Discs, at least 35% for DVDs, and at least 30% for CDs, with η1 > η2 and η1 > η3; a photodetector can detect the optimal amount of luminous flux taking into account the reflectivity of each optical disc.
G02B 13/00 - Optical objectives specially designed for the purposes specified below
G02B 13/18 - Optical objectives specially designed for the purposes specified below with lenses having one or more non-spherical faces, e.g. for reducing geometrical aberration
Disclosed is an imaging lens assembly comprising four individual lenses. The imaging lens assembly is small, has a wide viewing angle, and enables excellent correction of various aberrations. The imaging lens assembly includes, in order from the object side, an aperture stop, a first lens, a second lens, a third lens, and a fourth lens. The first lens has positive refractive power and a convex face directed toward the image side. The second lens has negative refractive power and a concave face directed toward the image side. The third lens has positive refractive power and a convex face directed toward the image side. The fourth lens has at least one non-spherical face, has negative refractive power, and has a biconcave shape. In addition, in the imaging lens assembly, if the paraxial curvature radius of the object-side face of the first lens is r1 and the focal distance of the entire imaging lens assembly is f, the imaging lens assembly is formed so as to satisfy the conditions of 1.15<|r1/f|<4.50.
G02B 13/00 - Optical objectives specially designed for the purposes specified below
G02B 13/18 - Optical objectives specially designed for the purposes specified below with lenses having one or more non-spherical faces, e.g. for reducing geometrical aberration
Disclosed is a probe in which one embodiment thereof is equipped with an inner sheath (30) in which an optical system is enclosed, an outer sheath (31) into which the inner sheath is inserted, and a calibration referencing member (32); the inner sheath and outer sheath are capable of relative movement operations in the lengthwise direction; as a result of said movement, the irradiation light emission section and the radiated light incidence section on the inner sheath can be housed in the outer sheath and exposed from the outer sheath; and the calibration referencing member is disposed in a position on the exterior of the inner sheath and the interior of the outer sheath, in which the receipt of irradiation light emitted from the emission section and the incidence of radiated light to the incidence section of the inner sheath housed in the outer sheath are possible. In other probes (7), an outer cylinder member (22) enables the exposure and covering of a transmission window (211a) with the relative movement to an inner cylinder member (21) and is provided with a cleaning member (221) that cleans the transmission window (211a) in connection with said relative movement.
A61B 1/00 - Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopesIlluminating arrangements therefor
A61B 1/04 - Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopesIlluminating arrangements therefor combined with photographic or television appliances
G02B 23/24 - Instruments for viewing the inside of hollow bodies, e.g. fibrescopes
44.
OBJECTIVE LENS FOR OPTICAL PICKUP DEVICE, OPTICAL PICKUP DEVICE, AND OPTICAL INFORMATION RECORDING/REPRODUCTION DEVICE
Disclosed are an optical pickup device, an optical information recording/reproduction device, and an objective lens favorable thereto that are compact and secure a working distance even for CDs having thick substrates, while enabling compatibility of three types of optical disc, i.e. BDs, DVDs, and CDs, using a common objective lens. The objective lens is provided with a first optical path difference imparting structure wherein the fundamental structures are superimposed in a manner such that the direction of the step of the fundamental structure of which the order of diffraction of a blue-violet laser beam is an odd order is directed in the opposite direction from the optical axis, and the direction of the step of the fundamental structure of which the order of diffraction of the blue-violet laser beam is an even order is directed in the direction of the optical axis. Also, the effective diameter of the objective lens is at least 2.0 mm and no more than 3.0 mm.
G02B 13/00 - Optical objectives specially designed for the purposes specified below
G02B 13/18 - Optical objectives specially designed for the purposes specified below with lenses having one or more non-spherical faces, e.g. for reducing geometrical aberration
Disclosed is a magnetic disk device provided with a magnetic recording medium (2), a head actuator (3) which has a magnetic head (31), a ramp (4), and three first deflection limiting members (5a, 5b, 5c). The three first deflection limiting members (5a, 5b, 5c) are arranged along the circumferential direction of the magnetic recording medium (2) so as to face part of the outer circumferential edge of the magnetic recording medium (2) at both surface sides thereof without making axial contact, and the three first deflection limiting members (5a, 5b, 5c) are constructed so as to be capable of suppressing deflection that occurs in the magnetic recording medium (2) due to external force.
G11B 21/12 - Raising and loweringBack-spacing or forward-spacing along trackReturning to starting position
G11B 25/04 - Apparatus characterised by the shape of record carrier employed but not specific to the method of recording or reproducing using flat record carriers, e.g. disc, card
G11B 33/14 - Reducing influence of physical parameters, e.g. temperature change, moisture, dust
In order to provide a microchip production method that can reduce manufacturing effort, and to provide a microchip, disclosed is a method that is for producing a microchip (1) and that is provided with: a first step for injection-filling molten resin into the cavity (51) of a die (3)—which comprises: a template (5), wherein a cavity (51) is provided to one surface thereof, and an insertion groove (52) is provided to the floor of the cavity (51); a core (4) that contacts the surface of the template (5) that faces the surface to which the cavity (51) is provided; and a core pin (6) that is inserted into the insertion groove (52), contacting the core (4), and that has a shape corresponding to that of the insertion groove (52)—and as a result of post-molding removal, forming a substrate (2) to which a through groove (22) has been formed having a shape corresponding to that of the core pin (6); and a second step for joining a bottom plate (12) and a lid plate (11) to the two surfaces of the substrate (2).
In the disclosed fixed die (41), which is a first die, a thermal leveling member (83) is provided that is disposed between a mounting plate (72) and an insulating plate (82), and that has a high thermal conductivity compared to a template (71), the mounting plate (72), and the insulating plate (82); consequently, the thermal leveling member (83) suppresses the effect on the mounting plate (72) and the like of a temperature differential arising in the insulating plate (82). In other words, during molding injection or cooling, even if a temperature distribution arises in the very same insulating plate (82) that prevents the flow of heat to a fixed plate (11) that is a supporting foundation, the effect from the insulating plate (82) on the mounting plate (72) and the like is reduced. As a result, the template (71) and mounting plate (72) are cooled relatively evenly, the temperature distribution of the inner surface (71i) of the template during cooling after resin injection is reduced, and a resin molded article having high optical performance can be molded with favorable yield.
In the disclosed molding device, the contact section (91a) of a convex member (81a) and the contact section (91a) of a concave member (81b) are covered by a protective layer (93), and so by means of the selection of material for the protective layer (93), it is possible to prevent the degradation of the convex member (81a) and the concave member (81b) resulting from abrasion, while maintaining the geometric strength of the convex member (81a) and the concave member (81b). As a result, the alignment precision of a fixed die (41) and a mobile die (42) can be increased and the state of alignment can be maintained for a long period of time, and so the form precision of a resin molded article can be maintained at a high precision over a long period of time.
Disclosed is an image pickup optical system (1) which is sequentially provided with, from the object side to the image side: a first lens group (LG1), which is composed of at least two lenses, including a positive lens (first lens (L1)) disposed closest to the object, and has positive refractive power as a whole; a second lens group (LG2), which is composed of at least one lens, and has positive refractive power as a whole; and a third lens group (LG3), which is composed of at least one lens. The first lens group (LG1) and the third lens group (LG3) are fixed to an image pickup surface (70a), the second lens group (LG2) is provided movably in the optical axis direction for the purpose of focus adjustment, and the image pickup optical system (1) satisfies the conditional expression of 0.1
G02B 13/00 - Optical objectives specially designed for the purposes specified below
G02B 7/02 - Mountings, adjusting means, or light-tight connections, for optical elements for lenses
G02B 13/18 - Optical objectives specially designed for the purposes specified below with lenses having one or more non-spherical faces, e.g. for reducing geometrical aberration
50.
OPTICAL FILM, POLARIZING PLATE AND LIQUID CRYSTAL DISPLAY DEVICE
Disclosed are: an optical film which is not susceptible to light leakage and exhibits good adhesion to a polarizer; a polarizing plate; and a liquid crystal display device. Specifically disclosed is an optical film, which contains an acrylic resin (A) and a cellulose ester resin (B) at a mass ratio from 95:5 to 50:50, and which is characterized in that the acrylic resin (A) is represented by general formula (1) and has a weight average molecular weight (Mw) of 20,000-1,000,000 (inclusive). General formula (1): -(MMA)p-(X)q-(Y)r- In the formula, MMA represents methyl methacrylate; X represents a monomer unit that has at least one amide group and is copolymerizable with MMA; Y represents a monomer unit that is copolymerizable with MMA and X; and p, q and r respectively represent molar percentages and satisfy 50 ≤ p ≤ 99, 1 ≤ q ≤ 50 and p + q + r = 100.
Disclosed are: an optical film which is not susceptible to light leakage and exhibits good adhesion to a polarizer; a polarizing plate; and a liquid crystal display device. Specifically disclosed is an optical film, which contains an acrylic resin (A) and a cellulose ester resin (B) at a mass ratio from 95:5 to 50:50, and which is characterized in that the acrylic resin (A) is represented by general formula (1) and has a weight average molecular weight (Mw) of 20,000-1,000,000 (inclusive). General formula (1): -(MMA)p-(X)q-(Y)r- In the formula, MMA represents methyl methacrylate; X represents vinyl pyrrolidone; Y represents a monomer unit that is copolymerizable with MMA and X; and p, q and r respectively represent molar percentages and satisfy 50 ≤ p ≤ 99, 1 ≤ q ≤ 50 and p + q + r = 100.
Disclosed is a method for manufacturing a glass substrate for an information recording medium, which includes a lapping step in which the surface of a rough glass plate is lapped using grinding fluid and a grinding apparatus provided with a diamond sheet which serves as a grinding member. The total amount of calcium and magnesium contained in the grinding fluid used in the lapping step is always 5 mg/L or less. The method for manufacturing a glass substrate for an information recording medium is efficient, the grinding member is less likely to become clogged, and furthermore there is less possibility of a decline in quality.
Provided is a molding die wherein, even if a component near a nozzle touch portion of a die is changed, etc., deformation in the die can be easily reproduced, and the need for re-alignment can be reduced. Because a sprue bush (65) comprises an adjustment mechanism (65c), if a component such as a locate ring (66) or a sprue bush (65) is changed for preventing stringing during molding or for cleaning the component, after the alignment and during the use of a molding die (40), correction is possible so that the deformation in the die to which the locate ring (66), the sprue bush (65), or the like, is attached can be reproduced after the change of the component in the same way as before. Thereby, after the exchanged component, etc., is attached, the need for re-alignment of the die can be reduced, and a molded product (MP) can be precisely molded after the component is changed.
Provided are a compact and low-cost optical pickup device which can read and write information on an optical disc having multi-layered information storage surfaces, and a coupling lens therefor. To this end, the coupling lens is made up of a positive lens having positive refractive power and a negative lens having negative refractive power, and only one of the positive lens and the negative lens can be displaced along the optical axis. The difference in thickness ΔT(mm) between the information storage surfaces that have the smallest and the greatest protecting-substrate thickness between the incidence surface of the optical disc and the information storage surface satisfies that 0.04 ≤ ΔT ≤ 0.05. The amount of displacement L(mm) of the one lens along the optical axis for focusing light beams of wavelength λ1 on the information storage surfaces with the smallest and the greatest protecting-substrate thickness satisfies that 0.5 ≤ L ≤ 2.0. The focal distance f(mm) of the coupling lens achieved when the one lens is displaced to the position at which the coupling lens emits a collimated light beam satisfies that 9 ≤ f ≤ 15.
G02B 13/00 - Optical objectives specially designed for the purposes specified below
G11B 7/09 - Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
55.
METHOD FOR PRODUCING OPTICAL FILM, OPTICAL FILM, POLARIZING PLATE, AND LIQUID CRYSTAL DISPLAY DEVICE
Disclosed is a method for producing an optical film by a solution casting film forming process wherein a resin solution that contains an acrylic resin and a cellulose ester resin at a mass ratio from 95:5 to 30:70 is used as a dope, said method comprising: a first stretching step wherein a film separated from a supporting body is MD stretched; a second stretching step wherein the film stretched in the first stretching step is TD stretched; a cutting step wherein both end portions of the film stretched in the second stretching step are cut off; and a third stretching step wherein the film, from which the cut end portions have been removed, is MD stretched. If the content of the acrylic resin is represented by A mass%, the total of the drawing ratio in the first stretching step and the drawing ratio in the third stretching step is from A/3 + 10 to A/5 + 40 in percentage. The drawing ratio in the first stretching step is 70-95% of the total drawing ratio in the machine direction of the film.
B29L 11/00 - Optical elements, e.g. lenses, prisms
56.
FILM PRODUCTION METHOD AND PRODUCTION APPARATUS, FILM PRODUCED BY SAID PRODUCTION METHOD, POLARIZING FILM COMPRISING SAID FILM, AND DISPLAY DEVICE PROVIDED WITH SAID POLARIZING FILM
Disclosed is a film production method which provides a decompression chamber (24) disposed on the upstream side of a support body movement direction (MD) of a die (2) and shields (25) that shield fluid that flows into the decompression chamber from a support body lateral direction and are disposed at both ends of a support body in the width direction between said decompression chamber (24) and the die (2), when a solution containing a polymer material is discharged from the die (2) on to the continuously moving support body (1) to form a casting ribbon (21) between the die (2) and the support body (1), and a casting film (22) is formed on the support body (1). The film production method has an atmospheric pressure gradient of 2%/mm max. between the inside and the outside of a gap between the shields (25) and the support body (1), in the support body width direction.
B29C 41/50 - Shaping under special conditions, e.g. vacuum
B29C 41/24 - Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped articleApparatus therefor for making articles of indefinite length
Disclosed is a solar concentrating mirror that has excellent antifouling properties, facilitates partial replacement, and can maintain high reflectivity at a low cost. Also disclosed are a trough solar thermal power generation device and a trough solar power generation device that are equipped with said solar concentrating mirror. The solar concentrating mirror has an elongated shape in which a cross section parallel to the lengthwise direction has a linear shape and a cross section perpendicular to the lengthwise direction has a macroscopically curved shape, and is characterized by being formed from a plurality of discrete elongated film mirrors divided in a direction perpendicular to the lengthwise direction of said solar concentrating mirror.
F24S 23/74 - Arrangements for concentrating solar rays for solar heat collectors with reflectors with trough-shaped or cylindro-parabolic reflective surfaces
In order to obtain an optical scanning system that can be reduced in size and a projector that is equipped with the same, an optical scanning system (10) is disclosed that is equipped with a laser source (1) that emits a laser beam, an optical lens system (11, 17, 19) that collimates the emitted laser beam, an optical component that guides the collimated laser beam in a prescribed direction, projecting members (a projecting member (8), a projecting prism (81)) that project the laser beam guided by the optical component towards a scanning mirror (3), and a scanning unit (2) that is provided with the aforementioned scanning mirror (3), which reflects the projected laser beam towards a projection surface, and that performs laser beam scanning by means of two-dimensional scanning of said scanning mirror. Also disclosed is a projector (100) equipped with the same. The projecting member is equipped with a first reflecting surface on the side facing the reflecting surface (3a) of the scanning mirror (3) in a non-driven state.
G02B 27/18 - Optical systems or apparatus not provided for by any of the groups , for optical projection, e.g. combination of mirror and condenser and objective
G03B 21/00 - Projectors or projection-type viewersAccessories therefor
H04M 1/00 - Substation equipment, e.g. for use by subscribers
H04N 5/74 - Projection arrangements for image reproduction, e.g. using eidophor
59.
CELLULOSE ESTER FILM, PRODUCTION METHOD THEREFOR, POLARIZING PLATE EQUIPPED WITH SAME, AND LIQUID CRYSTAL DISPLAY DEVICE
Disclosed are a cellulose ester film that has a suitable retardation value and high uniformity with a narrow range of variation and a production method therefor. Also disclosed are a polarizing plate equipped with said cellulose ester film and a liquid crystal display device having high display uniformity. The cellulose ester film includes a cellulose ester with a C2-4 acyl substituent in which the degree of acyl group substitution is in the range of 2.0 to 2.5, and is characterized in that the in-plane retardation value (Ro), the retardation value in the thickness direction (Rt), the plane orientation (S), and the thickness thereof are each within a specific range.
Disclosed is a resist pattern formation device that is capable of suppressing the removal or partial loss of a necessary resist pattern. The resist pattern formation device (70) is equipped with a rotatable stage (72) upon which a substrate is disposed, a developing solution discharging unit (78) that discharges a developing solution onto the aforementioned substrate disposed on the stage (72), and a gas venting unit (80) that vents gas onto the aforementioned substrate disposed on the stage (72), and is characterized in that, when the aforementioned substrate is disposed on the stage (72) and the developing solution is discharged from the developing solution discharging unit (78) toward the outer edge of the aforementioned substrate, gas is vented from the gas venting unit (80), and the gas flows towards the outer edge from the interior of the aforementioned substrate.
Disclosed is a hard coat film with improved interlayer adhesion between a protective film and a hard coat layer after weather resistance testing. Also disclosed are a production method therefor, a polarizing plate using the same, and a liquid crystal display device. The hard coat film is provided with the hard coat layer upon the protective film, and is characterized in that the hard coat layer includes an active energy ray-curable isocyanurate derivative, and in that the tanδ of said protective film in the widthwise direction of the film has the following relationship. 0.5 ≧ tanδ-40/tanδpeak ≧ 0.24 (Here, tanδpeak is the maximum value of tanδ measured at 25°C to 210°C, and tanδ-40 is the value of tanδ at 40°C below the temperature when tanδpeak is indicated.)
A diffraction grating (7) is formed on the surface (6) of a base material (1) by a nano-imprinting method. The base material (1) is cut on a cutting surface (A) that intersects the surface (6) in the longitudinal direction of the base material (1). The base material (1) is cut on a cutting surface (B) in the longitudinal direction at a predetermined distance from the cutting surface (A). Thus, a cut piece (30) sandwiched between the cutting surface (A) and the cutting surface (B) is obtained from the base material (1). A plurality of optical elements are manufactured by cutting, at predetermined intervals, the cut piece (30) on the cutting surfaces that intersect the cutting surface (A) and the cutting surface (B).
Disclosed is a method for producing a cellulose ester, with which variations in properties among production lots of the cellulose ester is suppressed and a cellulose ester film with reduced film surface defects (such as oblique streaks, lateral steps, or egg unevenness) can be produced. Also disclosed are a cellulose ester produced by the method, and a cellulose ester film using the cellulose ester. The method for producing a cellulose ester comprises a milling step of milling starting material cellulose, an activation step, an esterification step, an aging step, and a post-treatment step. The milling step is a mechanochemical milling step in which starting material cellulose and a solvent are mixed and milled.
Disclosed are a position control device, a position control method, a driving device and an imaging device in which the position of a movable part displaced by use of a shape memory alloy is controlled. The standard operation for controlling the position of said movable part involves detecting as the initial resistance value the resistance value of the aforementioned shape memory alloy (S1), and setting the target resistance value corresponding to the target displacement position of the aforementioned movable part to a value less than the aforementioned initial resistance value (S2). Consequently, the position control device, position control method, driving device and imaging device are capable of controlling the position of a movable part on the basis of the resistance value of a shape memory alloy by a simple configuration.
F03G 7/06 - Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for using expansion or contraction of bodies due to heating, cooling, moistening, drying, or the like
G02B 7/04 - Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
G02B 7/08 - Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification adapted to co-operate with a remote control mechanism
65.
COMPOSITE RESIN FILM AND PRODUCTION METHOD THEREOF
Disclosed is a flexible and high-transparency composite resin film with an improved linear expansion coefficient and elastic modulus, and a production method thereof. The disclosed composite resin film contains a fibrous composite material in a resin film base material, and contains portions in which the amount of the aforementioned fibrous composite material contained per unit volume varies in the thickness direction of said composite resin film, but is approximately constant in directions perpendicular to said thickness direction. The elastic modulus in the plane of said composite resin film is greater than that in the thickness direction of the film.
B29C 41/24 - Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped articleApparatus therefor for making articles of indefinite length
B29C 47/02 - incorporating preformed parts or layers, e.g. extrusion moulding around inserts or for coating articles
The disclosed microfluidic detection chip manufacturing method involves: a channel formation step for conveying a first continuous sheet and for forming channels by means of molding, shaping or printing in order in the conveyance direction of the first continuous sheet; a reagent supply step for supplying a reagent to the channels; and a lamination/adhesion step for laminating and adhering a second continuous sheet to the first continuous sheet in which channels were formed and to which the reagent was supplied. By means of manufacturing sheets forming multiple microfluidic detection chips, microfluidic detection chips can be manufactured with high productivity, low cost, and without fear of contamination.
G01N 35/08 - Automatic analysis not limited to methods or materials provided for in any single one of groups Handling materials therefor using a stream of discrete samples flowing along a tube system, e.g. flow injection analysis
B01J 19/00 - Chemical, physical or physico-chemical processes in generalTheir relevant apparatus
B81C 3/00 - Assembling of devices or systems from individually processed components
G01N 37/00 - Details not covered by any other group of this subclass
67.
METHOD FOR PRODUCING OPTICAL SEMICONDUCTOR ELEMENT MODULE
In the disclosed method, a sheet that is formed with a plurality of optical semiconductor element modules is prepared by arranging: a step wherein a continuous sheet to become a sealing material for one surface is conveyed, and in order of the direction of conveyance of the continuous sheet, electrodes are formed on the continuous sheet; a step wherein separately prepared optical semiconductor element chips are mounted between spacers; and a step wherein the sealing material of the other surface is supplied and sealing is performed.
In order to provide a set lens manufacturing method and a set lens, wherein the reduction of contract and occurrence of a ghost due to stray light are suppressed, and to obtain an image capturing device wherein the reduction of contract and occurrence of a ghost due to stray light are suppressed, disclosed is a set lens manufacturing method comprising: a step in which at least two lens arrays each formed from a single material are formed, a step in which a stop member is disposed between the formed lens arrays; a step in which the lens arrays are superposed in contact with each other and caused to adhere to each other; and a cutting step in which the lens arrays adhering to each other are separated into individual set lenses. In the cutting step, cutting is performed such that at least one cut surface has surface roughness satisfying the following conditional expression. 0.03[μm]≤Ra≤0.30[μm] (1) 0[μm]
Provided are a surface-modified resin film which does not necessitate any conventional surface modification treatment, e.g., hydrophilization treatment, a process for easily producing the film, a polarizer formed using the film, and a liquid-crystal display device. The surface-modified resin film comprises a resin film base and a fine fibrous substance contained in a surface thereof, and is characterized in that at least some of the lateral surfaces or ends of the fine fibrous substance are exposed on the surface of the surface-modified resin film and that the average free energy of the surface of the surface-modified resin film which contains the fine fibrous substance differs by 10% or more from the average free energy of the surface of the resin film base which does not contain the fine fibrous substance, due to the incorporation of the fine fibrous substance.
B29C 41/24 - Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped articleApparatus therefor for making articles of indefinite length
Disclosed are glasses for viewing stereoscopic images and a device for displaying stereoscopic images which do not impair light utilisation efficiency and experience little effect on visibility from angle of rotation. Further disclosed are glasses for viewing stereoscopic images equipped with a left eye shutter and a right eye shutter provided with electrochromic elements permeable only by linearly polarised light in a designated polarisation direction when voltage is not applied, and permeable by all polarised light when voltage is applied; a two-dimensional image display device which displays a left eye image and a right eye image alternately in chronological order; and a control circuit which coordinates the timing of the application of voltage to the electrochromic elements with the timing of the display of the left eye images and the right eye images.
G02B 27/26 - Other optical systems; Other optical apparatus for producing stereoscopic or other three-dimensional effects involving polarising means
G02F 1/13 - Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulatingNon-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
G02F 1/15 - Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulatingNon-linear optics for the control of the intensity, phase, polarisation or colour based on an electrochromic effect
G03B 35/16 - Stereoscopic photography by sequential viewing
G09F 9/00 - Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
Provided is an electronic device with an image projection function, which achieves improved usability by which, when an image is projected, both a display part and the projected image are easily viewable, improved quality of the projected image, and reduced size (reduced thickness). The electronic device comprises: a laser projector which is provided with a laser light source, and a deflection unit for deflecting light from the laser light source in a first scanning direction and a second scanning direction that are orthogonal to each other by a reflection member and two-dimensionally scanning a projection plane, and projects a two-dimensional image on the projection plane by adjusting the output of the laser light source according to the deflection state of the deflection unit; a display part which has a display surface on the reverse side of the projection side of the laser projector; and an operation part which is operated when the image is projected, said electronic device being configured such that when the side situated in the direction from the lower end to the upper end of the display surface is defined as positive, the light from the laser light source is incident on the reflection member from the negative side.
G02B 27/18 - Optical systems or apparatus not provided for by any of the groups , for optical projection, e.g. combination of mirror and condenser and objective
G03B 21/00 - Projectors or projection-type viewersAccessories therefor
H04M 1/00 - Substation equipment, e.g. for use by subscribers
H04N 5/74 - Projection arrangements for image reproduction, e.g. using eidophor
72.
OBJECTIVE LENS OF OPTICAL PICKUP DEVICE AND OPTICAL PICKUP DEVICE
Disclosed are an objective lens offering great ease in attachment, by facilitating highly precise detection of the attitude of the optical lens, and an optical pickup device employing same. The optical lens comprises a light source-side optical face and an optical disc-side optical face wherethrough light beams that collect upon an information recording face of the optical disc pass; a light source-side end face that is formed upon the exterior of the light source-side optical face and that has surface roughness (Ra) of 10nm or less; and an optical disc-side end face that is formed upon the exterior of the optical disc-side optical face and that has surface roughness (Ra) of 10nm or less. The optical lens satisfies the following formula (1): |α| ≠ |β| (1) Wherein α represents an angle formed by the optical disc-side end face and a face orthogonal to the optical axis of the optical disc-side optical face, and β represents an angle formed by the light source-side end face and a face orthogonal to the optical axis of the light source-side optical face.
G02B 3/02 - Simple or compound lenses with non-spherical faces
G02B 9/04 - Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or – having two components only
74.
PROCESS FOR PRODUCING RESIN FILM, RESIN FILM, POLARIZER, AND LIQUID-CRYSTAL DISPLAY DEVICE
Disclosed is a process for producing a resin film through solution casting, the process including a casting step in which a resin solution (dope) (16) is ejected from the orifice (21b) of a casting die (20) and cast on an endless-belt support (11) and, simultaneously therewith, a solvent in which the transparent resin as a component of the dope is soluble is caused to flow down from both longitudinal ends of the orifice (21b) of the casting die (20). The process satisfies relationship (1): -5 < T2 - T1 < 5 (1) (wherein T1 indicates the temperature [ºC] of the solvent which has just left the orifice, and T2 indicates the temperature [ºC] of the solvent which has just reached to the support).
B29C 41/24 - Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped articleApparatus therefor for making articles of indefinite length
Disclosed is a drive apparatus (1) that moves a to-be-driven member utilizing the difference between speed when expanding and speed when shrinking in the oscillation of an oscillator, wherein the oscillator, such as piezoelectric elements (4, 5) for example, is formed to have a structure in which the oscillator has two resonance modes with the same oscillating direction, and the ratio between the resonance frequencies of the two resonance modes is approximately two. A drive signal to be given to the oscillator roughly matches the two resonance modes. With a drive apparatus (1) having such a structure, a pseudo-serrated displacement oscillation wherein the amplitude thereof is increased Q-times the amplitude expansion coefficient by resonance is generated, enabling the movement speed to be improved, and enabling energy efficiency to be improved by making most of the energy to be thrown-in used for mechanical oscillation.
An optical pickup apparatus according to the present invention includes: a first light source for emitting a first light flux; a second light source for emitting a second light flux; a third light source for emitting a third light flux; and an objective optical element. The objective optical element has an optical surface including at least two areas provided with optical path difference providing structures. The objective optical element converges the first to third light fluxes each passing through the predetermined areas on the objective optical element onto respective information recording surfaces of the first to third optical disks. The optical pickup apparatus provides a wavelength dependency of a spherical aberration so as to correct a change in a spherical aberration due to a refractive index change with a temperature change of the objective optical element.
G11B 7/00 - Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation, reproducing using an optical beam at lower powerRecord carriers therefor
Disclosed is a light emission device (100) comprising: an LED chip (1) which can emit light having a specific wavelength; and a wavelength conversion unit into which the light emitted from the LED chip (1) enters and which can convert the entered light into light having a specific wavelength. The wavelength conversion unit is formed by a ceramic layer (4) that is produced using a phosphor-containing polysilazane as a raw material, the surface layer part of the ceramic layer (4) has a phosphor-free layer (41) which has a thickness of 0.05 to 20 μm inclusive.
A film mirror having a sunlight-reflecting function, which comprises a polymer film layer, a gas barrier layer containing a metal oxide, and a reflective metal layer in this order from the sunlight incident side, and which is characterized in that the ratio of the thickness of the gas barrier layer to the thickness of the polymer film layer is 0.1 to 5%; a process for producing the film mirror; and a sunlight collection mirror.
B32B 9/00 - Layered products essentially comprising a particular substance not covered by groups
B32B 15/08 - Layered products essentially comprising metal comprising metal as the main or only constituent of a layer, next to another layer of a specific substance of synthetic resin
F24J 2/10 - having reflectors as concentrating elements
H01L 31/052 - Cooling means directly associated or integrated with the PV cell, e.g. integrated Peltier elements for active cooling or heat sinks directly associated with the PV cells
79.
LIGHT REFLECTING FILM FOR SOLAR THERMAL POWER GENERATION, METHOD FOR PRODUCING SAME, AND REFLECTION DEVICE FOR SOLAR THERMAL POWER GENERATION USING SAME
Disclosed is a light-reflecting film for solar thermal power generation, which has good specular reflectance of sunlight and is prevented from decrease in the specular reflectance due to deterioration of a protective layer or the like. The light-reflecting film for solar thermal power generation is lightweight, has flexibility, excellent light resistance and excellent weather resistance, and can be mass produced at reduced production cost, while being increased in the area. Also disclosed are: a method for producing the light-reflecting film for solar thermal power generation; and a reflection device for solar thermal power generation using the light-reflecting film for solar thermal power generation. The light-reflecting film for solar thermal power generation comprises, as constituent layers on a resin base, an adhesive layer, a metal reflection layer, and two or more protective layers that are arranged closer to the light source than the metal reflection layer, and is characterized in that at least one of the protective layers is releasable.
B32B 15/08 - Layered products essentially comprising metal comprising metal as the main or only constituent of a layer, next to another layer of a specific substance of synthetic resin
F24S 23/70 - Arrangements for concentrating solar rays for solar heat collectors with reflectors
80.
FILM MIRROR FOR SOLAR THERMAL POWER GENERATION, METHOD FOR PRODUCING FILM MIRROR FOR SOLAR THERMAL POWER GENERATION, AND REFLECTION DEVICE FOR SOLAR THERMAL POWER GENERATION
Disclosed is a film mirror for solar thermal power generation, which has good specular reflectance of sunlight and is prevented from decrease in the specular reflectance due to deterioration of an adhesive layer that serves as a reflective layer. The film mirror for solar thermal power generation is lightweight, while having flexibility, excellent light resistance and excellent weather resistance. Also disclosed are: a method for producing the film mirror for solar thermal power generation; and a reflection device for solar thermal power generation using the film mirror for solar thermal power generation. The film mirror for solar thermal power generation is characterized by comprising one or more UV absorbing layers that contain an inorganic UV absorbent having a refractive index of 2.4 or less and a silver reflective layer that is configured of silver. The film mirror for solar thermal power generation is also characterized by being provided with an adhesive layer, which is provided for the purpose of being bonded to a supporting body, on a side of the silver reflective layer counter to the light incident side thereof.
Disclosed are an objective lens capable of suppressing defects at formation time in a lens with high NA and an optical pickup device. The lens uses a resin (PL) with an MFR of greater than or equal to 10 (g/10 min) and less than or equal to 70 (g/10 min), and therefore, from the initial state shown in FIG. 2(a) to the final state shown in FIG. 2(b), curing of the resin (PL) in the vicinity of a gate portion (GT) is suppressed, pressure of a runner (LN) side is conveyed to the resin (PL) within a cavity, and as a result, the resin (PL) is molded to a vicinity of a maximum thickening of a transfer plane (10a) of a first mold (10) having a small radius of curvature. Therefore, it is possible to acquire a high-precision optical surface.
The image pickup lens includes a first positive lens (focal distance: f1) having the convex surface facing the object side, a second negative lens having the concave surface facing the image side, a third positive lens (focal distance: f3) having the convex surface facing the image side, a fourth positive meniscus lens having the convex surface facing the image side, and a fifth negative lens having the concave surface facing the image side, arranged in that order as viewed from the object side. The surface of the fifth lens on the image side is aspherical, and an inflection point is located at a position other than the intersection point with the optical axis. The aperture stop is located closer to the image than the first lens, and the conditional expression (1) is met: 0.8
G02B 3/02 - Simple or compound lenses with non-spherical faces
G02B 13/18 - Optical objectives specially designed for the purposes specified below with lenses having one or more non-spherical faces, e.g. for reducing geometrical aberration
There is provided a device for manufacturing a molded glass body, including a fall-prevention means for preventing the glass molded body which has stuck on the upper mold from falling down on the lower mold. Thus, the molded glass body does not damage the lower mold, even if the molded glass body which has stuck on the upper mold falls down from the upper mold, during a period from an end of the pressure molding to releasing and withdrawing the molded glass body obtained by the pressure molding from the any one of the upper mold and the lower mold.
An image-capturing lens composed of two lens elements, image-capturing lens accommodating 1/10-inch and 1/12-inch solid-state image-capturing elements and having satisfactorily corrected aberrations. An image-capturing lens for causing a photoelectric conversion section of a solid-state image-capturing element to form an image of an object, the image-capturing lens comprising, in order from the object side: an aperture stop; a meniscus-shaped first lens having positive refractive power and having a convex surface facing the object side; a meniscus-shaped second lens having positive refractive power and having a convex surface facing the object side; and a parallel flat plate element, and the image-capturing lens satisfying the following conditional formulas. 0.70 mm < f < 1.60 mm, and 0.25 < dc/f < 0.50, where dc is the thickness of the parallel flat plate element (if multiple parallel flat plate elements are used, the sum of the thicknesses is taken), and f is the focal length of the entire image-capturing lens system.
G02B 13/18 - Optical objectives specially designed for the purposes specified below with lenses having one or more non-spherical faces, e.g. for reducing geometrical aberration
85.
OPTICAL CONTROL FILM AND MANUFACTURING METHOD THEREFOR
Provided is an optical control film that has high mechanical strength and allows easy optical control. Also provided is a method that can easily manufacture said optical control film. The provided optical control film has a curable resin layer on a thermoplastic resin support. The fracture elongation of the curable resin layer is less than that of the thermoplastic resin support. Physical stretching forms craze with a pitch of 1 μm or greater on the curable resin layer.
B29C 55/04 - Shaping by stretching, e.g. drawing through a dieApparatus therefor of plates or sheets uniaxial, e.g. oblique
B32B 5/18 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by features of a layer containing foamed or specifically porous material
B32B 7/02 - Physical, chemical or physicochemical properties
86.
LIGHT-ASSIST MAGNETIC HEAD MANUFACTURING METHOD AND LIGHT-ASSIST MAGNETIC HEAD
Disclosed is a light-assist magnetic head method manufacturing for manufacturing a high-precision light-assist magnetic head by joining optical elements to a slider with high precision; also disclosed is a light-assist magnetic head. Because the optical elements (31) can be formed attached directly on the slider (32), the slider (32) and the optical elements (31) can be precisely and easily joined, reducing the number of manufacturing steps.
Disclosed are a manufacturing method for a light-assisted magnetic head for manufacturing a high-precision light-assisted magnetic head by bonding an optical element to a slider with high precision, and a light-assisted magnetic head. Upon a slider (32), by using a mold (M10) for forming a diffraction grating (D) of an optical element (31), it is possible directly to form the optical element (31) comprising the diffraction grating (D) into a tight fit and therefore, it is possible to secure with high precision a positional relationship between the slider (32) and the diffraction grating (D) of the optical element (31) even while reducing the number of man-hours for manufacturing.
Disclosed is a vehicle headlight in a headlight optical system using a white LED as a light source, which can be reduced in size, in particular the front-back size can be reduced in thickness to become more compact, regardless of the reflective surface being smooth and undivided, and which is also highly efficient and has excellent cutoff properties. The vehicle headlight is provided with a surface-emitting light source, a first reflecting mirror, and a second reflecting mirror, uses the z-axis facing the direction of vehicle progression, has the light source disposed within the yz plane on the center of curvature of the first reflecting mirror (1) when the horizontal direction intersecting the z-axis is the x-axis and the vertical direction is the y-axis, and fulfills the following formula when the light ray emitted vertically from the center of the light source (2) in relation to the plane formed by the x-axis and the optical axis of the first reflecting mirror (1) is the principal ray, the point upon the second reflecting mirror where the principal ray reflected by the first reflecting mirror (1) hits the second reflecting mirror is a, the distance from the center of the light source to the point upon the second reflecting mirror is LA, and the combined focal length of the optical system in relation to the principal ray reflected by the first reflecting mirror and the second reflecting mirror is fa. 4fa ≧ LA
An imaging optical system has at least three reflective surfaces as optical surfaces with power, and an intermediate image is formed in the optical system. Along the optical path, the reflective surface nearest the object and the reflective surface nearest the image are both concave, and at least one of the reflective surfaces has a non-rotationally symmetric shape having a single plane of symmetry, and the condition 1.1
G02B 13/18 - Optical objectives specially designed for the purposes specified below with lenses having one or more non-spherical faces, e.g. for reducing geometrical aberration
Provided is a light-assisted magnetic head which is compact, is hardly affected by the heat generated from the light source for a magnetic recording/reproducing unit, and can be easily assembled. A light-assisted magnetic head is provided with: a slider which has an optical wave guide, is suspended above a disc-shaped recording medium, and moves relative to said recoding medium in accordance with the rotation thereof; a light source which is attached to the side surface of the slider; and an optical element which has a deflected surface which deflects the light beam from the light source towards the optical waveguide disposed on the slider. The light beam emitted from the light source enters the optical waveguide via the deflected surface of the optical element, and exits towards the recording medium from the light-exiting edge of the optical waveguide, which faces the recording medium.
Disclosed is a method for assembling an optically-assisted magnetic head, whereby easy assembly can be ensured. Before assembling a light source (33), a luminous flux emitted from an inspection light source (ILD) is inputted to an optical waveguide (32a) via an optical element (31), and the optical element (31) is aligned with a slider (32), while inspecting the light outputted from the outputting end. Therefore, the optical element (31) can be easily aligned with the slider (32).
Disclosed is a light-emitting device (100) which is provided with an LED chip (1) that emits light of a specific wavelength, and an optical element (3) which is arranged separately from the LED chip (1) and into which the light emitted from the LED chip (1) enters. The optical element (3) is provided with a ceramic layer (4) which is formed using a polysilazane as a starting material and contains a phosphor that converts light of a specific wavelength.
Disclosed is a vehicle headlight that can be made more compact and that is also highly efficient and has excellent cutoff properties. The vehicle headlight (100) is provided with a surface-emitting light source (2), a first reflecting mirror (1), and a lens (3); uses the z-axis facing the direction of vehicle progression; uses the position of the vertex of the first reflecting mirror (1) that has curvature as the coordinate origin (P) and has the light source (2) disposed within the yz plane on the center of curvature of the first reflecting mirror (1) when the horizontal direction intersecting the z-axis is the x-axis and the vertical direction is the y-axis; and fulfills formula (1) when the focal point on the light source (2) side of the first reflecting mirror (1) that is closest to the vertex from the position of the origin (P) is a first focal point, another focal point is a second focal point, the distance from the position of the origin (P) to the position of the first focal point is F1, the distance from the position of the origin (P) to the position of the second focal point is F2, and the distance from the position of the origin (P) to the position of a focal point on the reverse side of the lens (3) in the z-axis direction is F. Formula (1) |F-F1| ≦ |F2|(mm)
Provided is a film mirror which does not cause an ultraviolet absorbing agent to bleed out even when used as a film mirror for a solar thermal power generator over a long period of time in harsh environments, can sufficiently minimize the drop in specular reflectance, is light weight and flexible, reduces manufacturing costs, can be increased in area and mass produced, exerts excellent adhesive properties and resistance to weather and thermal shock, and has a superior specular reflectance rate against sunlight. Also provided are a method for producing said film mirror, and a reflecting device for a solar thermal generator using said film mirror. The film mirror is provided, on a resin substrate, with an ultraviolet absorbing layer and a reflective layer comprising a metal, wherein: the ultraviolet absorbing layer is configured from an ultraviolet absorbing layer comprising a polymeric ultraviolet light absorber; or the reflective layer configured from the metal functions as the silver reflective layer, and the ultraviolet absorbing layer is configured from ultraviolet absorbing layer (1) containing an ultraviolet absorber, and ultraviolet absorbing layer (2) containing an ultraviolet absorber capable of preventing silver from corrosion.
B32B 15/08 - Layered products essentially comprising metal comprising metal as the main or only constituent of a layer, next to another layer of a specific substance of synthetic resin
F24S 23/70 - Arrangements for concentrating solar rays for solar heat collectors with reflectors
Disclosed is an intermediate for manufacturing a high-precision optically assisted magnetic head by accurately joining an optical element to a slider. Also disclosed is a method of manufacturing an optically assisted magnetic head. Since optical elements (31) are formed by cutting an intermediate (IM2) in a direction intersecting with the longitudinal direction of the intermediate such that each optical element (31) includes a light collecting surface, the optical elements (31) and corresponding sliders (32) can be accurately positioned using alignment marks (IM2e) before the intermediate (IM2) is divided into the optical elements (31) even when the sliders (32) have a minute structure, and as a result, the optical elements (31) can collect light beams on respective optical waveguides (32a).
Disclosed is an optical film that has excellent adhesion and surface hardness between the film substrate and a hard coat layer or other functional layer, has improved brittleness, is transparent, and has low moisture absorption and high heat resistance. Additionally disclosed are an antireflective film, a polarizing plate, and a display device using the same. The optical film has at least a hard coat layer or a back coat layer as a functional layer containing a resin on a film substrate, and is characterized in that said film substrate contains a thermoplastic acrylic resin (A) and a cellulose ester resin (B), with the content ratio by mass of said thermoplastic acrylic resin (A) and said cellulose ester resin (B) being in a range thermoplastic acrylic resin (A):cellulose ester resin (B)=95:5 to 50:50.
Disclosed is an intermediate for producing a highly precise light-assisted magnetic head by means of precisely joining an optical element to a slider. By shining light radiating from an autocollimator (AC) onto the lateral surface (IM2c) of a second intermediate (IM2) and detecting the reflected light, the angle of the second intermediate (IM2) is adjusted while displaying the angle of the lateral surface (IM2c) on a monitor (MT). Furthermore, using an alignment mark (WAM) provided to a first intermediate (IM1) as a benchmark, light sources (33) and collimating lenses (34) are sequentially positioned and affixed to the first intermediate (IM1). Afterwards, ultraviolet light is shined through the second intermediate (IM2), a photocurable adhesive applied to a joining surface is cured, and the first intermediate (IM1) and the second intermediate (IM2) are bonded. Furthermore, by simultaneously splitting the first intermediate (IM1) and the second intermediate (IM2) in the shorter dimension at the center of a light focusing reflecting surface (31d) formed on the second intermediate (IM2), it is possible to efficiently produce six light-assisted magnetic heads (3) having a width of w.
Disclosed is a method for manufacturing a beam splitter (10) wherein the tilted surfaces of a plurality of prisms are bonded to each other. The lower exposed surface of the lower flat plate surface (50Da) of a glass flat plate (50D) among a plurality of laminated glass flat plates is supported by means of a jig (90), and another glass flat plate (50E) is stacked on the upper flat plate surface (50Db) of the glass flat plate (50D) with an adhesive therebetween. After applying pressure to the upper flat plate surface (50Eb) of the glass flat plate (50E), the glass flat plates (50D, 50E) are bonded to each other with the adhesive, and a laminate (60) is provided.
First and second light sources emit first and second light beams, respectively. A light condensing system condenses the beams, and a polarization separation system separates each of the beams into first and second polarization components. A ½ phase plate converts the polarization state of the first polarization component to one equal to that of the second polarization component, and a rod integrator uniformizes spatial energy distribution of the beams condensed by the light condensing system. A relay system forms an image of an exit face of the rod integrator on a region to be illuminated. The light condensing system condenses the first and second polarization components onto first and second regions, respectively, of an entrance face of the rod integrator; and the ½ phase plate is placed at the first region of the entrance face of the rod integrator or at a position conjugate with the first region.
Provided is a small-sized five-element image pickup lens which ensures a sufficient lens speed of about F2 and exhibits various aberrations being excellently corrected. The image pickup lens is composed of, in order from the object side, a first lens with a positive refractive power, including a convex surface facing the object side; a second lens with a negative refractive power, including a concave surface facing the image side; a third lens with a positive or negative refractive power; a fourth lens with a positive refractive power, including a convex surface facing the image side; and a fifth lens with a negative refractive power, including a concave surface facing the image side. The image-side surface of the fifth lens has an aspheric shape, and includes an inflection point at a position excluding an intersection point with the optical axis.
G02B 15/14 - Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective
G02B 13/02 - Telephoto objectives, i.e. systems of the type + – in which the distance from the front vertex to the image plane is less than the equivalent focal length
G02B 7/28 - Systems for automatic generation of focusing signals
patents
