An optical computing device includes an optical computing section including a first transmissive optical modulation element having cells each having an independently set phase modulation amount. The first transmissive optical modulation element emits a signal light, in a signal direction, generated when transmitted light beams phase-modulated by the cells interfere with each other and a noise light, in a noise direction, transmitted through the first transmissive optical modulation element without being phase-modulated by the cells. The optical computing device includes an optical sensor that detects the signal light outputted from the optical computing section and generates an electrical signal indicating a result of the detection. The first transmissive optical modulation element is configured such that an impact that the noise light has on the electrical signal is smaller than the impact in a state where the signal direction aligns with the noise direction.
A digital phase shifter includes a plurality of digital phase shift circuit groups in which a plurality of digital phase shift circuits are connected in cascade, and one or more bend type connection portions that connect two of the digital phase shift circuit groups to each other, in which a connection portion includes a coil that is connected in series between a signal line of a first digital phase shift circuit and a signal line of a second digital phase shift circuit, of two of the digital phase shift circuits, a pair of capacitors that are connected in parallel on both sides of the coil, and a pair of electronic switches that are each provided on one end side of the pair of capacitors and that switch whether or not to ground the one end side of the pair of capacitors.
The present invention is a bias circuit including: an amplification transistor for amplifying a signal input to a bias output terminal; a feedback transistor for feeding back the output of the amplification transistor to the bias output terminal; and a constant current source connected to an input terminal of the feedback transistor. The bias circuit outputs a bias voltage from the bias output terminal to a common mode control impedance.
This electrostatic capacitance sensor (1A) comprises: a sensor part (20) that includes a sensor electrode (22) that forms electrostatic capacitance with an object to be detected (100); and a molded part (11) that is interposed between the object to be detected (100) and the sensor electrode (22). The molded part (11) includes an insulator (12) that is composed of an insulating material having electrical insulation, and fillers (13) that are dispersed in the insulator (12) and include conductor fillers or dielectric fillers.
H01H 36/00 - Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding
This optical connector comprises: a ferrule (10) having a plurality of fiber holes (11) aligned in a first direction (X), and a connection end surface (10a) in which the plurality of fiber holes (11) open; a pin clamp (50) that is disposed on the side of the ferrule (10) opposite to the connection end surface (10a) and supports the ferrule (10); a biasing member (60) that biases the pin clamp (50) toward the connection end surface (10a) side; a latch (40) that is locked to an adapter; and a housing (20) that houses a part of the ferrule (10), the pin clamp (50), the biasing member (60), and a part of the latch (40). When viewed from the longitudinal direction of the fiber holes (11), the biasing member (60) has an elliptical shape, the latch (40) is disposed on a first side in the first direction (X), the pin clamp (50) has a first support part (51b) in contact with the distal end part of the biasing member (60), the housing (20) has a second support part (20a) in contact with the base end part of the biasing member (60), and a first distance in the longitudinal direction between the first support part (51b) and the second support part (20a) on the first side in the first direction (X) is greater than a second distance in the longitudinal direction between the first support part (51b) and the second support part (20a) on a second side which is the opposite side of the first side in the first direction (X).
A terminal that inputs and outputs optical signals of optical fibers in an optical cable includes a housing, an input port that introduces the optical signals into an inside of the housing, wavelength demultiplexers that receive and demultiplex the introduced optical signals into a wavelength band and wavelength bands other than the wavelength band, a distribution port that distributes optical signals demultiplexed into the wavelength band to an external terminal, and an output port that extracts optical signals demultiplexed into the wavelength bands to an outside of the housing. A total number of the wavelength demultiplexers is equal to a total number of the optical fibers. Each of the wavelength demultiplexers is connected to a corresponding optical fiber of the optical fibers.
A multi-core fiber includes a cladding, cores extending in an extending direction inside the cladding, a marker inside the cladding, and an end surface inclined in an inclined direction that is not orthogonal to the extending direction. The cores at the end surface are line-symmetrically arranged with respect to a virtual axis orthogonal to the inclination direction. The virtual axis virtually divides the end surface into a first area and a second area. The cores include a first core disposed farthest from the virtual axis in the first area and a second core disposed farthest from the virtual axis in the second area. A center of the marker at the end surface is disposed in an area between a straight line, passing through the first core, parallel to the virtual axis and a straight line, passing through the second core, parallel to the virtual axis.
G02B 6/04 - Light guidesStructural details of arrangements comprising light guides and other optical elements, e.g. couplings formed by bundles of fibres
A cable bundle includes a cable that is wound. The cable bundle includes unit bundles stacked in a stacking direction perpendicular to a first direction that is a circumferential direction of the cable bundle. Each of the unit bundles includes a first loop and a second loop that are stacked in the stacking direction, and the first loop and the second loop are connected via a respective one of connecting parts such that a figure-8 shaped loop including the first loop and the second loop is formed in a state in which each of the unit bundles is opened. The connecting parts of adjacent ones of the unit bundles in the stacking direction are disposed at different positions in the first direction.
An optical connector comprises: a ferrule (10) having a plurality of fiber holes arranged in a first direction and a connection end surface in which the plurality of fiber holes open; a pin clamp (50) which is disposed on the opposite side of the ferrule from the connection end surface and supports the ferrule; a biasing member (60) which biases the pin clamp (50) toward the connection end surface side; a latch (40) which is locked to an adapter; and a housing (20) which houses a part of the ferrule, the pin clamp, the biasing member, and a part of the latch, the biasing member (60) having an elliptical shape when viewed from the longitudinal direction of the fiber holes, the latch (40) being disposed on a first side in a first direction, the pin clamp (50) having a first support part in contact with the distal end part of the biasing member (60), the housing (20) having a second support part in contact with the proximal end part of the biasing member (60), and the center part of the first support part in the first direction being positioned closer to the proximal end side than both end parts in the first direction.
H02G 1/06 - Methods or apparatus specially adapted for installing, maintaining, repairing, or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle
An optical connection assembly (into which a plurality of optical connectors are inserted) includes: a plurality of adapter modules that include a plurality of holding portions, include an insertion hole into which the optical connector is insertable and in which the inserted optical connector is holdable (the plurality of holding portions are disposed in parallel in a first direction intersecting an insertion direction in which the optical connector is inserted); and a shaft member that extends in a second direction intersecting the first direction and the insertion direction and supports the plurality of adapter modules. The plurality of adapter modules are relatively movable along the shaft member in the second direction. A distance over which the plurality of adapter modules are relatively movable is equal to or greater than a dimension of the insertion hole in the second direction.
A wireless communication system includes a wireless communication device and a plurality of wireless devices. The wireless communication device includes a phased array antenna having a beam forming function, and a control unit that controls a direction of a beam of the phased array antenna and performs control of providing a service according to the direction of the beam of the phased array antenna. For example, the wireless communication device is installed on a platform, the wireless device is installed on a train that enters the platform, and the wireless communication device provides a service of causing a monitor provided on the train that enters a track of the platform to display an image of the track of the platform where the train enters.
H04B 7/06 - Diversity systemsMulti-antenna systems, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
H01Q 3/34 - Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elementsArrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the distribution of energy across a radiating aperture varying the phase by electrical means
H04W 4/44 - Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P] for communication between vehicles and infrastructures, e.g. vehicle-to-cloud [V2C] or vehicle-to-home [V2H]
13.
MANUFACTURING METHOD FOR THREE-DIMENSIONAL MOLDED ARTICLE
The purpose of the present disclosure is to manufacture a three-dimensional molded article in which it is possible to wire wiring targets even when a plurality of wiring targets are located facing each other. A manufacturing method (S1) for a three-dimensional molded article according to the present disclosure comprises: a first molding step (S11) for molding a three-dimensional structure that has a hole having a shape corresponding to the three-dimensional molded article; an immersion step (S12) for immersing, in an electrolytic solution, the three-dimensional structure, a first electrode, and a second electrode having a different polarity from the first electrode; and a second molding step (S13) for molding the three-dimensional molded article from one end to the other end of the hole through electroplating.
The purpose of the present disclosure is to suppress deviation that may occur between a plan view shape of a region which is irradiated with light and a plan view shape of a region in which a photocurable resin is cured. A stereolithography apparatus according to the present disclosure is provided with an irradiation unit which irradiates a first region (A1) of a modeling surface (P) set inside a photocurable resin that contains a monomer and a polymerization initiator with first light having a wavelength that is included in the absorption wavelength of the polymerization initiator and having a time average of the intensity higher than the modeling threshold (Th), and which irradiates a second region (A2) of the modeling surface (P) with second light having a wavelength that is included in the absorption wavelength of the polymerization initiator and having a time average of the intensity lower than the modeling threshold (Th). In a light exposure apparatus according to the present disclosure, an outer edge (A21) of a second region (A2) surrounds an outer edge (A11) of a first region (A1) on a modeling surface (P).
B29C 64/135 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified characterised by the energy source therefor, e.g. by global irradiation combined with a mask the energy source being concentrated, e.g. scanning lasers or focused light sources
15.
METHOD FOR PRODUCING STEREOLITHOGRAPHIC ARTICLE AND STEREOLITHOGRAPHY DEVICE
The objective of the present disclosure is to enhance resolution in at least a propagation direction of promotion light in a stereolithographic technique using a liquid phase polymerization method. A stereolithographic method according to the present disclosure includes: a region defining step (S11) of defining a first region to be irradiated with promotion light on a molding surface set inside a photocurable resin and a second region to be irradiated with inhibition light; and an irradiation step (S13) of irradiating the first region with the promotion light having a wavelength λ1 which is n times (n is an integer of 2 or more) greater than a first absorption wavelength included in the absorption band of the polymerization initiator, and irradiating the second region with the inhibition light having a wavelength λ2 which is a second absorption wavelength included in the absorption band of the polymerization inhibitor. In the irradiation step, the polymerization initiator is activated by n-photon absorption of photons of the promotion light.
B29C 64/135 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified characterised by the energy source therefor, e.g. by global irradiation combined with a mask the energy source being concentrated, e.g. scanning lasers or focused light sources
An optical connector (1) includes: a ferrule (10) including a connection end surface (10a) in which a plurality of fiber holes (11) are formed side by side in a Z-axis direction (first direction); an urging member (60) for urging the ferrule (10) in an X-axis direction (second direction) in which the connection end surface (10a) faces; a pin clamp (50) for transmitting the urging force of the urging member (60) to the ferrule (10); and a housing (20) for accommodating a portion of the ferrule (10), the urging member (60), and the pin clamp (50). The urging member (60) is an elliptical coil spring with the long axis extending in the Z-axis direction, and the dimension of at least the major axis changes as the urging member increasing approaches the ferrule (10) in the X-axis direction.
An optical connector (1) is provided with: a ferrule (10); a first biasing member (61); a second biasing member (62); a pin clamp (50); a housing (20); and a latch (40). The first biasing member (61) is disposed farther from the latch (40) than the second biasing member (62) in a first direction (Z-axis direction). A first inter-seating-surface distance (D1) between a first seating surface (60A) and a third seating surface (60C), which receive the first biasing member (61), is shorter than a second inter-seating-surface distance (D2) between a second seating surface (60B) and a fourth seating surface (60D), which receive the second biasing member (62).
This optical communication system 6A comprises: a plurality of modulators 63 that generate a respective plurality of optical control signals on the basis of a plurality of first microwave control signals; a multicore optical fiber 65 that transmits the plurality of optical control signals individually; and a light receiving substrate 67 that receives each of the plurality of optical control signals transmitted by the multicore optical fiber 65, converts the plurality of optical control signals into a plurality of second microwave control signals, and transmits the plurality of second microwave control signals to a quantum circuit 2.
G02B 6/04 - Light guidesStructural details of arrangements comprising light guides and other optical elements, e.g. couplings formed by bundles of fibres
An optical communication system 6A comprises: a plurality of modulators 63 that each generate a plurality of optical control signals on the basis of a plurality of first microwave control signals; an image fiber 64A that includes a plurality of second single-core optical fibers 645A that propagate the plurality of optical control signals, and a tubular member 641 that houses the plurality of second single-core optical fibers 645A; and a light-receiving substrate 65 that receives the plurality of optical control signals from the plurality of second single-core optical fibers 645A, converts the plurality of optical control signals into a plurality of second microwave control signals, and transmits the plurality of second microwave control signals to a quantum circuit 2.
H04B 10/25 - Arrangements specific to fibre transmission
G02B 6/04 - Light guidesStructural details of arrangements comprising light guides and other optical elements, e.g. couplings formed by bundles of fibres
An object of the present invention is to provide a ferrule and an optical connection structure capable of stabilizing optical connection quality when performing positioning without using pins. A ferrule (50) according to the present invention has a fiber hole (51) into which an optical fiber (F) is to be inserted, a light-emitting surface from which light that has passed through the optical fiber (F) is to be emitted, and a longitudinal reference surface (50a) that determines a position of the ferrule (50) in a longitudinal direction with respect to a receptacle (30). The longitudinal reference surface (50a) is positioned between a center line (O) passing through a center position of the ferrule (50) in the longitudinal direction and the light-emitting surface.
An alignment device (200) includes imaging units (105A) and (105B) configured to capture side surface images of a pair of optical fibers (10A) and (10B) for one turn in a circumferential direction at a plurality of focus positions, a feature amount calculation unit (112) configured to calculate, for each of the focus positions, a feature amount obtained by digitizing features of the side surface images for one turn of each of the optical fibers (10A) and (10B), a degree of asymmetry calculation unit (113) configured to calculate, for each of the focus positions, a degree of asymmetry between the feature amounts for one turn of the respective optical fibers (10A) and (10B), a focus position selection unit (114) configured to select a specific focus position among the focus positions having a predetermined degree of asymmetry or more, and a rotation alignment unit configured to perform alignment of the pair of optical fibers (10A) and (10B) in the circumferential direction based on the side surface images for one turn of the respective optical fibers (10A) and (10B) at the selected focus position.
The invention relates, in part, to methods of 3D topological nanofabrication within hydrogel scaffolds. The method including contacting a hydrogel comprising one of more photosensitizers and catalysts with light to pattern the hydrogel.
B29C 35/08 - Heating or curing, e.g. crosslinking or vulcanising by wave energy or particle radiation
C08J 3/28 - Treatment by wave energy or particle radiation
C08J 7/02 - Chemical treatment or coating of shaped articles made of macromolecular substances with solvents, e.g. swelling agents
C08L 33/08 - Homopolymers or copolymers of acrylic acid esters
C08L 33/26 - Homopolymers or copolymers of acrylamide or methacrylamide
B29C 64/188 - Processes of additive manufacturing involving additional operations performed on the added layers, e.g. smoothing, grinding or thickness control
B33Y 80/00 - Products made by additive manufacturing
23.
METHOD FOR CONTROLLED ISOTROPIC SHRINKING OF HYDROGEL SUBSTRATES ENSURING NANO PRECISION OF INTERNAL 3D STRUCTURES
The invention relates, in part, to methods for three-dimensional nanofabrication. Certain aspects of the invention include methods for isotropically shrinking patterned hydrogels, dehydrating the hydrogels after shrinking, and fixing the dehydrated hydrogel resulting in highly stable micro and nanostructures in patterned hydrogels.
A multi-core fiber having a first end surface and a second end surface includes a cladding and cores inside the cladding. The cores extend in a first extending direction at the first end surface and extend in a second extending direction at the second end surface. The first end surface is inclined in an inclination direction that is not orthogonal to the first extending direction. The second end surface is inclined in an inclination direction that is not orthogonal to the second extending direction. In a state of contact where the first end surface is in contact with the second end surface such that an angle made by the first extending direction and the second extending direction is minimized, each of the cores at the first end surface at least partially overlaps one of the cores at the second end surface.
G02B 6/04 - Light guidesStructural details of arrangements comprising light guides and other optical elements, e.g. couplings formed by bundles of fibres
The present invention comprises: a step for preparing a plurality of communication core rods serving as communication cores, a cladding body serving as a cladding, and a marker core rod serving as a marker core; a step for combining the plurality of communication core rods, the cladding body, and the marker core rod to obtain an optical fiber preform; and a step for drawing the optical fiber preform to thereby obtain a multicore optical fiber equipped with a plurality of communication cores, a cladding surrounding the communication cores, and at least one marker core provided to the cladding. The marker core has a propagation characteristic conforming to a first standard relating to the propagation characteristics of light when the cutoff wavelength of the marker core is made the same as the cutoff wavelength of any of the communication cores by adjusting the outside diameter of the marker core.
The purpose of the present disclosure is to provide a multicore optical fiber which enables suppression of crosstalk between a core and a marker and easy confirmation of the marker, and a marker identification method for the multicore optical fiber. A multicore optical fiber (10) comprises: a plurality of communication cores (11); a cladding (12) that surrounds the communication cores (11); and at least one marker core (13) that is provided to the cladding (12). A normalized propagation constant (b) of the marker core (13) is b≤0.2 in a communication wavelength band of the communication cores (11), and is b>0.2 at at least one wavelength in a region having a wavelength shorter than that of the communication wavelength band of the communication cores (11).
A printed wiring board 10 comprises: an insulating substrate 2a which has a surface 2a1 and to which a through hole 2e is provided; a conductor layer 2b which is provided on the surface 2a1; and a conductive through-via 2d which is provided in the through hole 2e and is electrically connected to the conductor layer 2b. The conductor layer 2b includes: a surface portion 2b1 which is in contact with the surface 2a1 of the insulating substrate 2a outside the through hole 2e; and a smooth surface portion 2g which is in contact with the conductive through-via 2d in the through hole 2e and is smoother than the surface portion 2b1. The conductive via 2d includes bismuth regions B which contain bismuth as a main component, and the total sum of the outer peripheral lengths of the bismuth regions B per cross-sectional unit area of the conductive through-via 2d is 0.25/μm or less.
This optical connector cleaning tool 1 comprises: a first cleaning body 10 which is provided with a plurality of thread-shaped members 11 arranged so as to extend in the same direction, and through which a guide pin 112 can pass; and a first cleaning shaft 30 around which the first cleaning body 10 is wound so as to be folded back at a pressing surface 321. The first cleaning shaft 30 is provided with an insertion hole 324 which is provided with a first opening 325 that opens on the pressing surface 321 and into which the guide pin 112 can be inserted, a conveyance path 301 that guides the first cleaning body 10, and a second opening 326 that opens on an inner peripheral surface 324a of the insertion hole 324 and communicates with the conveyance path 301.
B08B 1/34 - Cleaning by methods involving the use of tools by movement of cleaning members over a surface using rotary cleaning members rotating about an axis parallel to the surface
29.
CABLE WITH TRACTION END AND METHOD FOR MANUFACTURING CABLE WITH TRACTION END
This cable with a traction end comprises: a cable part having an optical fiber, a tensile strength body, and a sheath; a branch part having a resin part fixed to an end part of the cable part; and a traction part having a traction hose covering the branch part. In the resin part, a hose fixing member, a waterproof member holding part, and an end part of the tensile strength body are embedded.
G02B 6/44 - Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
G02B 6/54 - Underground or underwater installationInstallation through tubing, conduits or ducts using mechanical means, e.g. pulling or pushing devices
An optical fiber processing tool (1) comprises: a connector holder (20) for holding an optical connector that connects a pair of optical fibers so as to be abutted end-to-end; a wedge (50) that is attached to the connector holder (20) so as to be able to be inserted into and removed from the optical connector, and that enables the pair of optical fibers to be abutted end-to-end when the wedge (50) is in a state of being inserted into the optical connector; and a remover (60) for attaching the wedge (50) to and detaching the same from the connector holder (20).
This optical connector cleaning tool (1) comprises: a pair of first cleaning bodies (10) each of which is provided with a plurality of thread-shaped members (11) arranged so as to extend in the same direction, and through each of which a guide pin (112) of an optical connector (100) can pass; and a pair of first cleaning shafts (30) each of which has, at a front end, a pressing surface (321) that presses the first cleaning body (10) against a connection end surface (111) of the optical connector (100), and around each of which the first cleaning body (10) is wound. Each of the first cleaning shafts (30) has an insertion hole (324) which is open on the pressing surface (321) and into which the guide pin (112) can be inserted, and the relative positional relationship between the front end portions of the pair of first cleaning shafts (30) is variable in the arrangement direction of the pair of first cleaning shafts (30).
The present invention is an optical fiber processing tool comprising: a fiber holder for holding an optical fiber in a state in which an end section of the optical fiber is extended out from the fiber holder on one side; a coating stripper for removing a coating of the optical fiber; a base member for supporting the coating stripper; and a fiber cutting part for cutting a bare section of the optical fiber, wherein after the fiber cutting part cuts the bare section, the fiber holder moves relative to the fiber cutting part.
This amplifier comprises: a transistor which amplifies a high-frequency signal; a transistor which is connected to the transistor, and the on-off state of which is controlled by a bias signal; a transistor which is connected to the transistor, and the on-off state of which is controlled by a bias signal; a resistor which is connected to the transistor; a resistor which is connected to the transistor; an output terminal which is connected to a connection part between the transistor and the resistor; and an output terminal which is connected to a connection point between the transistor and the resistor.
A beamformer integrated circuit (10) comprises: a memory (13) that stores an intensity setting value that defines the intensity adjustment amount of a high-frequency signal that is a signal to be supplied to each of a plurality of antenna elements (21) or a signal to be supplied from each of the plurality of antenna elements (21); and an analog circuit unit (12) that performs attenuation and amplification of the high-frequency signal on the basis of the intensity setting value stored in the memory (13).
H01Q 3/26 - Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elementsArrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the distribution of energy across a radiating aperture
H01Q 21/06 - Arrays of individually energised antenna units similarly polarised and spaced apart
This differential amplifier with temperature compensation includes: a temperature compensation circuit having a positive temperature coefficient; a first transistor; and a third transistor and a second transistor for amplifying a voltage difference applied to each first terminal. A power source is electrically connected to a second terminal of each of the second transistor and the third transistor. A third terminal of the second transistor, a third terminal of the third transistor, and a second terminal of the first transistor are connected. One end of the temperature compensation circuit is connected to the power source, and the other end thereof is connected to the third terminal of the second transistor, the third terminal of the third transistor, and the second terminal of the first transistor.
This beamformer integrated circuit includes: a memory that stores an intensity setting value that defines an intensity adjustment amount of a high-frequency signal that is the signal supplied to a plurality of antenna elements or the signal supplied from the plurality of antenna elements; a conversion circuit that converts some of the intensity setting values stored in the memory into a control value that defines the attenuation rate of a high-frequency signal; and an analog circuit that attenuates the high-frequency signal on the basis of the control value obtained by the conversion circuit.
H01Q 3/26 - Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elementsArrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the distribution of energy across a radiating aperture
H01Q 21/06 - Arrays of individually energised antenna units similarly polarised and spaced apart
This beamformer integrated circuit comprises: a memory (13) that stores an intensity setting value that defines the intensity adjustment amount of a high-frequency signal that is a signal to be supplied to each of a plurality of antenna elements or a signal to be supplied from each of the plurality of antenna elements; a circuit unit that has at least one amplifier (for example, a variable gain amplifier (63), a power amplifier (65)) that amplifies the high-frequency signal; and a power supply control unit (70) that can interrupt power supply to the at least one amplifier if the intensity setting value read from the memory (13) is 0.
H04B 7/06 - Diversity systemsMulti-antenna systems, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
H01L 25/00 - Assemblies consisting of a plurality of individual semiconductor or other solid-state devices
H01Q 21/24 - Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction
H01Q 23/00 - Antennas with active circuits or circuit elements integrated within them or attached to them
38.
OPTICAL COMMUNICATION NETWORK AND METHOD FOR MANUFACTURING SAME
An optical communication network includes three or more nodes and a domain in which each of transmission paths, that connects two of the three or more nodes within the domain, is constituted by a multi-core fiber or a multi-core fiber connected body in which positions of markers on both end surfaces of the multi-core fiber connected body are swapped.
H01S 3/00 - Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
H01S 3/082 - Construction or shape of optical resonators or components thereof comprising three or more reflectors defining a plurality of resonators, e.g. for mode selection or suppression
H01S 3/23 - Arrangement of two or more lasers not provided for in groups , e.g. tandem arrangement of separate active media
This exposure device comprises: a stage; an imaging optical system (objective lens and imaging lens) that forms an image of an exposure beam on a gel; an illumination optical system that includes an objective lens and an imaging lens shared with the imaging optical system and irradiates the gel and a substrate with illumination light; a first detection optical system that generates an image of reflected or scattered light of the illumination light reflected or scattered at each point on the substrate, the reflected light or scattered light transmitted through the objective lens; a working distance adjustment unit (C2); and a stage adjustment unit (C3) that adjusts the orientation of the stage so as to reduce the difference between the images of the reflected light or the scattered light in each of a first state and a second state in which the working distances are different from each other.
B29C 64/393 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
B29C 64/135 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified characterised by the energy source therefor, e.g. by global irradiation combined with a mask the energy source being concentrated, e.g. scanning lasers or focused light sources
This exposure device (1) comprises: a laser light source (14) that outputs an exposure beam (LE); an imaging optical system (10) that forms an image of the exposure beam (LE) on an exposure target (gel 41); and a fluorescence detection optical system (50) including a photodetector (55) that detects fluorescence (LF) of the exposure target (gel 41) generated by the formation of the image of the exposure beam (LE).
B29C 64/135 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified characterised by the energy source therefor, e.g. by global irradiation combined with a mask the energy source being concentrated, e.g. scanning lasers or focused light sources
B29C 64/268 - Arrangements for irradiation using laser beamsArrangements for irradiation using electron beams [EB]
The present invention realizes an optical computation device that can perform high-speed, high-efficiency optical computation. An optical computation device (1) comprises an optical diffraction element group (11) and a lens group (12). Each lens (12a1–12am) of the lens group (12) is positioned such that a point on a specific plane (S0) or a point at infinity and a point on a plane of incidence (S1) for a first optical diffraction element (11a) are substantially conjugate to the lens group (12).
G02B 30/56 - Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images the image being built up from image elements distributed over a 3D volume, e.g. voxels by projecting aerial or floating images
G03H 1/16 - Processes or apparatus for producing holograms using Fourier transform
G06E 3/00 - Devices not provided for in group , e.g. for processing analogue or hybrid data
43.
CONTROL DEVICE, FUSION CONNECTION DEVICE, CONNECTOR CONNECTION DEVICE, AND CONTROL PROGRAM
A control device includes a processor that identifies a position of a marker in an end surface of a multi-core fiber and controls an alignment mechanism to align the multi-core fiber such that the position of the marker satisfies a predetermined condition.
G05B 19/418 - Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM]
44.
ROUND AND SMALL DIAMETER OPTICAL CABLES WITH A RIBBON-LIKE OPTICAL FIBER STRUCTURE
Ann optical fiber cable including an optical fiber ribbon in a pipe, wherein the ribbon includes at least two optical fibers arranged side by side, and wherein at least two of the optical fibers are bonded intermittently along a length of the fibers.
A semiconductor package (1) comprises: an IC chip (10) including an analog circuit block (11); and a substrate on which the IC chip (10) is mounted. The IC chip (10) includes a metal pad (12) electrically connected to a power supply. A metal terminal (40) is connected to the metal pad (12). The substrate includes a via (24) and a wiring pattern (23) that connects the via (24) and the metal terminal (40). The metal pad (12), the metal terminal (40), the via (24), and the wiring pattern (23) are disposed at positions that do not overlap the analog circuit block (11) in plan view.
An optical communication network includes: nodes; and a domain in which all of transmission paths that connect the nodes within the domain are constituted by multi-core fiber connected bodies, each of which includes one or more multi-core fibers and one or more pairs of Fan-In/Fan-Out (FI/FO) devices respectively connected to ends of a corresponding one of the one or more multi-core fibers. Each pair of the one or more pairs of FI/FO devices connected to ends of the corresponding one of the one or more multi-core fibers has a reversely symmetrical coupling structure. Each of the one or more pairs of FI/FO devices includes ports identifiable from each other and coupled with respective cores of the one or more multi-core fibers.
This heat transport element includes: a heat exchange part extending in a first direction; and a vapor chamber connected to a first end of the heat exchange part and having a contact surface in contact with a heating element. The vapor chamber includes: a first container communicating with an internal space of the heat exchange part to form a storage chamber in which a working fluid is stored; and a first wick disposed in the storage chamber and capable of holding the working fluid. The first container has a lower wall, an upper wall, and a column in contact with the lower wall and the upper wall. The heat exchange part has a second container forming the internal space, and at least a portion of the column is disposed at a location overlapping the second container when viewed in the first direction.
F28D 15/02 - Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls in which the medium condenses and evaporates, e.g. heat-pipes
48.
INFORMATION PROCESSING SYSTEM, INFORMATION PROCESSING METHOD, AND INFORMATION PROCESSING PROGRAM
In order to effectively and efficiently construct a data set composed of data on which model inference performance is low, a processor (12) performs inference for each data included in a data set (DS) by using each of a main model (M1) and sub-models (M2, M3, …, Mn) by inputting the data to each of the main model (M1) and the sub-models (M2, M3, …, Mn), and determines the level of inference performance of the main model with respect to the data on the basis of output data output from each of the main model (M1) and the sub-models (M2, M3, …, Mn).
A transmission line comprises: a first transmission line having a signal line conductor; a second transmission line having a signal line conductor formed in a layer different from that of the signal line conductor of the first transmission line; and a connection portion having a connection via for electric interlayer connection of the signal line conductors, wherein the first transmission line is a microstrip line having the signal line conductor and a ground conductor, the second transmission line is a coplanar line having the signal line conductor and two ground conductors formed to sandwich the signal line conductor, and the connection portion includes two ground connection conductors electrically connected to each of the ground conductor of the first transmission line and the two ground conductors of the second transmission line so as to surround a part of at least one of the signal line conductors and the connection via in a plan view.
H01P 5/10 - Coupling devices of the waveguide type for linking lines or devices of different kinds for coupling balanced lines or devices with unbalanced lines or devices
A transmission line (1) includes: a first transmission line including a signal line conductor (11); a second transmission line including a signal line conductor (21) formed in a layer different from the signal line conductor (11); and a connection part (30) including a signal line narrow section (31) that is connected to an end (E12) of the signal line conductor (11) and is narrower than each of the signal line conductor (11) and the signal line conductor (21), and a connection via (33) that interlayer connects the signal line conductor (11) and the signal line conductor (21) via the signal line narrow section (31). The first transmission line is a microstrip line that includes the signal line conductor (11) and a ground conductor (12), and the second transmission line is a coplanar line that includes the signal line conductor (21) and ground conductors (22a, 22b) formed so as to sandwich the signal line conductor (21).
This oxide superconducting wire includes a tape-shaped metal substrate comprising a nickel alloy, an intermediate layer laminated on the metal substrate, and an oxide superconducting layer laminated on the intermediate layer, wherein the average KAM value of the metal substrate in a cross section along the longitudinal direction and the thickness direction of the metal substrate is within the range of 0.5-1.8°.
This oxide superconducting wire material comprises: a tape-like metal substrate made of a nickel alloy; an intermediate layer laid on the metal substrate; and an oxide superconducting layer laid on the intermediate layer. The Vickers hardness of the metal substrate is 230 HV or more.
An optical connector includes a ferrule including a connection end surface having a fiber hole through which an optical fiber is inserted, a holding member that holds the ferrule, a spring push, and a biasing member that biases the ferrule, one end of the biasing member contacting the holding member and the other end of the biasing member contacting the spring push. The holding member includes an engaging portion. The spring push includes an engaged portion that engages the engaging portion.
This oxide superconducting wire includes a tape-shaped metal substrate comprising a nickel alloy, an intermediate layer laminated on the metal substrate, and an oxide superconducting layer laminated on the intermediate layer, wherein the average KAM value of the metal substrate in a cross section along the longitudinal direction and the thickness direction of the metal substrate is within the range of 0.3-0.5°.
Provided is an optical filter capable of suppressing damage to an optical component caused by Raman scattered light. This optical filter (1) is provided with a first optical fiber (10) and a second optical fiber (20) connected to the first optical fiber (10). The first optical fiber (10) is composed of a photonic bandgap fiber including a core region (11) and a plurality of high refractive index portions (13) which have a refractive index higher than the refractive index of the core region (11) and which are arranged periodically around the core region (11) so as to suppress the propagation of Raman scattered light within the core region (11). The second optical fiber (20) includes a core (21) and cladding (22) which has a refractive index lower than the refractive index of the core (21) and which covers the outer periphery of the core (21). The optical filter (1) is provided with: a high refractive index resin (50) that removes Raman scattered light that has passed through the high refractive index portions (13) of the first optical fiber (10) and is incident on the cladding (22) of the second optical fiber (20); and a fiber accommodating portion (30) that accommodates the optical fibers (10), (20) and protects the connected portions of the optical fibers (10), (20).
G02B 6/44 - Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
H01S 3/10 - Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
A pin clamp (20) is used in a ferrule (10) in which a plurality of optical fibers (F) and two guide pins (30) are inserted, and holds the guide pins (30). The pin clamp (20) is provided with a body section (21) that extends in the longitudinal direction and has an insertion hole through which the optical fibers (F) are inserted. The body section (21) has a ferrule facing surface (21b) that faces the ferrule in the longitudinal direction, and a seating surface (21c) that is disposed on the opposite side from the ferrule facing surface in the longitudinal direction and that comes into contact with a biasing member that applies a biasing force to the ferrule. The body section (21) is elastically deformable, and can constitute an orthogonal opening (O) through which the optical fibers (F) can be inserted from an orthogonal direction orthogonal to the longitudinal direction by elastic deformation.
Provided is an exposure device capable of improving accuracy in three-dimensional optical shaping of a swollen gel. An exposure device (1) comprises: an imaging optical system that forms an image on a swollen gel (41) by an exposure beam (LE); an illumination optical system (20) that irradiates a substrate (a bottom plate of a petri dish 42) on which the gel (41) is placed with illumination light (LL); and a detection optical system (30) that forms an image of reflected or scattered light of the illumination light (LL) reflected or scattered at each point on the substrate (a bottom plate 421 of the petri dish 42) at each point of a photodetector (35).
An optical fiber element wire includes a bare wire part including a core and a cladding and extending in an axial direction of the bare wire part, a primary layer covering the bare wire part, and a secondary layer covering the primary layer. The optical fiber element wire is configured such that, when a point load is applied to the optical fiber element wire with a spherical pin having a diameter of 3 mm, a void occurs in the primary layer before peeling occurs between the bare wire part and the primary layer and before cracking occurs within the primary layer.
Provided is an optical modulation device capable of keeping a mounting area small while being able to generate a plurality of signal lights. This optical modulation device (1) comprises: an array-type optical modulator (11) that includes a plurality of modulation cells (111); and an optical waveguide (12) that includes a plurality of cores (121). The array-type optical modulator (11) and the optical waveguide (12) are coupled such that light emitted from each of the plurality of modulation cells (111) is incident on any of the plurality of cores (121) without interfering with the light emitted from the other modulation cells (111).
G02F 1/09 - 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 magneto-optical elements, e.g. exhibiting Faraday effect
A ferrule (1) to which a plurality of optical fibers are attached comprises: a front surface (10); a ferrule front part (1a) having a butting surface (32) further to the rear than the front surface (10), and being provided with first holes (31) extending rearward from the butting surface (32) and being open at the rear end; a ferrule middle part (1b) provided with second holes (40) positioned substantially coaxially with the first holes (31) to the rear of the first holes (31); and a sealing part (50) positioned between the first holes (31) and the second holes (40) and having an internal space filled with an adhesive, the first holes (31) having slits (33) communicating with the inside of the sealing part (50) on the inner peripheral surface.
A component built-in substrate 1A comprises: a plurality of unit substrates; a first electronic component 40a; and a second electronic component 40b. The plurality of unit substrates each comprise a second single-sided substrate 10b including a wiring layer 12 which includes a wiring 121c connected to the second electronic component. The first electronic component includes second opposite sides 402a, 402b that do not overlap with any of the four sides of the second electronic component. The second electronic component includes fourth opposite sides 404a, 404b that do not overlap with any of the four sides of the first electronic component and that are adjacent to a first side with an interval therebetween. A second wiring extends in a manner intersecting the second opposite sides and the fourth opposite sides in a plan view.
This method for producing a multicore fiber preform (1P) comprises: a determination step (P3) for determining a combination of a through hole (20PH) and a core rod (10P) to be inserted into the through hole (20PH); and an insertion step (P4) for inserting each core rod (10P) into each through hole (20PH) in accordance with the determined combination of a core rod (10P) and a through hole (20PH). In the determination step (P3), if the sum of normalized clearances, which are each obtained by dividing the size CS of the clearance in the case when the core rod (10P) is inserted into the through hole (20PH) by the outer diameter of a cladding rod (20P) and subsequently multiplying by 100, is calculated for sets (PA1) and (PA2), a combination of a core rod (10P) and a through hole (20PH) is determined so that the sum in all the sets (PA1) and (PA2) is 1.1 or less.
A multicore fiber connection method comprises: a determination step (S3) for determining the rotational position for multicore fibers (2), where the distance dispersion between a line (L) connecting respective tips of a pair of high-voltage discharge electrodes (61a), (61b) located across a butting position of the multicore fibers (2) and the central axes (CC) of the respective cores (21) becomes a prescribed value equal to or lower than the value intermediate between the minimum value and the maximum value in a dispersion distribution when the multicore fibers (2) are rotated around the central axis (C) of a cladding (22); an installation step (S4) for installing the respective multicore fibers (2) at the determined rotational position; and a fusion step (S5) for performing discharge from the pair of high-voltage discharge electrodes (61a), (61b) and for fusing the respective multicore fibers (2) to each other.
An optical fiber element wire includes: a bare wire part including a core and a cladding and extending in an axial direction of the bare wire part; a primary layer covering the bare wire part; and a secondary layer covering the primary layer. A Young's modulus of the primary layer is within a predetermined range that removes a void within the primary layer in response to the optical fiber element wire being heated at either 45° C. or 60° C. for 3 minutes or more.
The purpose of the present invention is to provide a fiber optic cable capable of suppressing increased transmission loss caused by cracks in the sheath. A fiber optic cable (1) comprises: an optical fiber (10); a binding wrap (20) covering the optical fiber (10); and a sheath (30) forming a space (31) for accommodating the optical fiber (10) and the binding wrap (20). There is a gap (G) in at least a portion of the space between the inner peripheral surface (32) of the sheath (30) and the binding wrap (20), and the binding wrap (20) has a plurality of ridges (23).
A differential amplifier comprising a pair of transistors and a resistor connected to each of the pair of transistors, wherein the resistor exhibits thermal characteristics that compensate for temperature-induced changes in the differential amplification gain.
The present invention keeps bend loss at a low level in an optical waveguide in which a core includes a bend section. This optical waveguide (1) comprises: a core (11) that includes a bend section (11b); and a cladding (12) that surrounds the core (11) and has a lower refractive index than the core (11). The refractive index of the cladding (12) on the opposite side of the bend section (11b) from the curvature center (o) side of the bend section (11b) is lower than the refractive index of the cladding (12) on the curvature center (o) side of the bend section (11b).
This invention widens an exposable area in a situation in which a relative position between an imaging optical system and an exposure object is not changed. This exposure apparatus is provided with: a single imaging lens; a plurality of objective lenses; an optical path selector that selects one of the plurality of objective lenses on which an exposure beam that has passed through the imaging lens is to be incident; and an optical path length adjustment unit that aligns the air-equivalent optical path lengths of the optical paths from the imaging lens to the objective lenses.
Provided is an optical combiner capable of suppressing light loss. An optical combiner (1) comprises: input optical fibers (10) each having a core (11) through which light propagates; divergence angle reduction parts (20) each having an incidence end (21) on which the light propagating through the core (11) of the input optical fiber (10) is incident, and an emission end (22) from which the light is emitted in a state where the divergence angle is smaller than that when the light is incident on the incidence end (21); and a bridge fiber (40) that includes intermediate optical fibers (30) each having a core (31) on which the light emitted from the emission end (22) of the divergence angle reduction part (20) is incident, and that has a tapered part (42) in which the outer shape of the bundled intermediate optical fibers (30) decreases toward the downstream side. The diameter of the core (31) at an upstream end of each of the intermediate optical fibers (30) is greater than the diameter of the core (11) at a downstream end of each of the input optical fibers (10).
G02B 6/04 - Light guidesStructural details of arrangements comprising light guides and other optical elements, e.g. couplings formed by bundles of fibres
G02B 6/32 - Optical coupling means having lens focusing means
G02B 6/42 - Coupling light guides with opto-electronic elements
This optical fiber bundle comprises: a cylindrical capillary which is formed of glass and has a first opening and a second opening; and a plurality of optical fibers which each comprise a core and a cladding, and in which the cladding has, on the tip side, a small-diameter part that is thinner than the rear-end side, and the small-diameter part enters the capillary from the first opening. The cladding is formed of glass, and the capillary has a joint part where the cladding is fused in a fixed range from the second opening side. The distance M between the cores of the adjacent optical fibers in the joint part and the diameter D of the small-diameter part which is not joined to the capillary satisfy M/D≥0.92.
G02B 6/04 - Light guidesStructural details of arrangements comprising light guides and other optical elements, e.g. couplings formed by bundles of fibres
This optical cabinet comprises a cabinet housing, a plurality of connection units, an optical cable which is introduced into the interior of the cabinet housing from an introduction port provided in a lower portion of the cabinet housing, and a duct through which at least a portion of wiring included in the optical cable is inserted, wherein: the duct extends in a vertical direction; the interior of the cabinet housing has at least four regions divided by a first imaginary line extending in the vertical direction and a second imaginary line extending in a left-right direction orthogonal to the vertical direction; at least one connection unit is disposed in each of the four regions; and the wiring connected to the connection units located above the second imaginary line passes through the interior of the duct.
This connection unit comprises: a unit housing; and at least 10 trays supported by the unit housing so as to be slidable in a longitudinal direction. Each of the at least 10 trays has a first introduction part for introducing a first optical fiber group into the tray, a second introduction part for introducing a second optical fiber group into the tray, and a connection part holding region for holding a fusion splicing part of the first optical fiber group and the second optical fiber group. The dimension in the vertical direction of the one unit housing is 128 mm, and the at least 10 trays are arranged in the vertical direction.
Provided is an optical fiber bundle (50) in which, in a state in which a plurality of optical fibers (51) are bundled, the positional relationship of the optical fibers (51) is fixed, wherein the optical fibers (51) have a basic diameter part (63), a fine diameter part (61) that is thinner than the basic diameter part (63), and a tapered part (62) that is positioned between the basic diameter part (63) and the fine diameter part (61) and gradually increases in diameter from the fine diameter part (61) toward the basic diameter part (63), and adjacent tapered parts (62) are in contact with each other over the entire length thereof.
G02B 6/04 - Light guidesStructural details of arrangements comprising light guides and other optical elements, e.g. couplings formed by bundles of fibres
This patch panel comprises: a patch panel housing; an optical cable introduced into the patch panel housing; a fusion sleeve holding part for holding a fusion splicing part between a plurality of first optical fibers included in the optical cable and a plurality of second optical fibers; and a plurality of adapters connected to the plurality of second optical fibers. The patch panel housing is divided into a first storage region, a second storage region, a third storage region, and a fourth storage region in a lateral direction. The fusion sleeve holding part is disposed in the first storage region, and the plurality of adapters are attached to the respective front wall parts of the second storage region, the third storage region, and the fourth storage region.
This patch panel comprises: a patch panel housing; and a plurality of adapters to which optical connectors can be connected. The patch panel housing is defined into a first storage area, a second storage area, a third storage area, and a fourth storage area in the left-right direction. The first storage area, the second storage area, the third storage area, and the fourth storage area each have a front wall part. The plurality of adapters are attached to at least some of a plurality of front wall parts, and the front wall parts of the second storage area and the third storage area, which are located on the inner side in the left-right direction, are located forward of the front wall parts of the first storage area and the fourth storage area, which are located on the outer side.
This optical cable holding member holds an optical fiber cable having an optical fiber and a tension member, and comprises a body part. The body part is provided with a fiber routing channel through which the optical fiber can be routed, a tension member routing channel through which the tension member can be routed, an adhesive injection port which leads to the tension member routing channel and which opens toward the outside of the body part, and a separation wall for separating the fiber routing channel from the tension member routing channel. The separation wall faces the adhesive injection port in a first orthogonal direction which is orthogonal to the longitudinal direction of the fiber routing channel.
The present invention provides an optical fiber that can suppress an increase in light loss even if stored in a moist and hot environment. An optical fiber (10) comprises: a core (11) which has an average refractive index value of n1; an inner cladding (12) which surrounds the outer circumferential surface of the core (11), is made of silica glass having fluorine added thereto, and has an average refractive index value of n2; and an outer cladding (13) which surrounds the outer circumferential surface of the inner cladding (12), has a lower added fluorine concentration than the inner cladding (12), has an average refractive index value of n3, and has a thickness of T3, where n1>n2, n3>n2, and T3≥1.40 μm are satisfied.
A polarization-maintaining fiber (1) comprises a core (11), an inner layer (12) which surrounds the core (11) without a gap, a pair of stress-applying parts (13) which are disposed at positions such that the core (11) is sandwiched therebetween, and cladding (14) in which the inner layer (12) and the pair of stress-applying parts (13) are embedded, wherein: when light having a wavelength of 1.55 μm propagates through the core (11), the mode field diameter of the light is not more than 9.3 μm; when the length of said fiber is 0.25 m and said fiber is wound once around a mandrel having a radius of 2 mm such that the slow axes of the stress-applying parts (13) are perpendicular to a surface of the mandrel, a cutoff wavelength is not less than 1.32 μm; and the product of the area of a cross section of the inner layer (12) which is perpendicular to the lengthwise direction and the average relative refractive index difference of the entire inner layer (12) with respect to the cladding (14) is -36 to 0%μm2 .
This antenna device includes: a base including a phased array antenna module including a plurality of antenna elements; and a cover part covering at least a part of a region around the phased array antenna module in the base. The cover part is formed from a material containing at least an oxygen atom, with an organic polymerization compound as a base material.
This optical connector comprises: a ferrule having a connection end surface that has a plurality of fiber holes arranged in a prescribed direction, and a recessed part that is depressed in an orthogonal direction orthogonal to the prescribed direction; a biasing member for biasing the ferrule; an intermediate member for transmitting the biasing force of the biasing member to the ferrule; and a housing for housing a part of the ferrule, the intermediate member, and the biasing member. The intermediate member has a body section that contacts the ferrule from the base end side of the ferrule, the body section has an outer part that is positioned further outwards than the ferrule in the prescribed direction, and the housing has a first projecting part that enters the recessed part and a second projecting part for abutting the outside part.
The present invention provides a composite attenuator capable of applying a desired level of attenuation to a transmission signal in response to temperature changes, regardless of the operation state of a switching attenuator. The present invention provides a composite attenuator (A) in which a switching attenuator (5), which switches an attenuation level on or off, and a variable attenuator (4), which allows continuous adjustment of the attenuation level are connected in series, wherein the composite attenuator (A) is provided with a switching control unit (7) that generates a switching signal (Vc) for setting the attenuation level of the switching attenuator (5), and a variable control unit (6) that generates a variable signal (Vm) for setting the attenuation level of the variable attenuator (4), and wherein the variable control unit (6) corrects the variable signal (Vm) in accordance with the switching signal (Vc).
An optical fiber cable includes: a core including an optical fiber; a wrapping tube wrapping the core; a jacket housing the core and the wrapping tube; a tension-resisting member of a Fiber Reinforced Plastic (FRP) embedded in the jacket; and a wire member that is flexible, includes fibers, and is embedded in the jacket. In a transverse cross-sectional view, the wire member is disposed inside a virtual circle that has a center at a center axis of the core and that passes through a center of the tension-resisting member. A circumferential dimension of the wire member is greater than a radial dimension of the wire member.
The present invention comprises an output circuit in which a pair of load terminals are connected to a pair of output terminals in a main circuit. The output circuit comprises: a first load inductor having a first end connected to a power supply and a second end connected to one of the pair of load terminals; and a second load inductor having a first end connected to the power supply and a second end connected to the other of the pair of load terminals. The inductance of each of the first load inductor and the second load inductor is set so as to suppress the output of unnecessary waves to the outside.
H03B 19/14 - Generation of oscillations by non-regenerative frequency multiplication or division of a signal from a separate source by means of discharge device or semiconductor device with more than two electrodes by means of a semiconductor device
84.
IMAGE PROCESSING METHOD, IMAGE PROCESSING DEVICE, IMAGE PROCESSING PROGRAM, AND ENDOSCOPE SYSTEM
The present invention provides an image processing technology that improves resolution or visibility of obtained images. An image processing device (10) generates a super-resolution image by acquiring a plurality of object images obtained through imaging of one end of an image guide (13q) which includes a plurality of cores and in which the other end faces an object (O), and by obtaining a simple average or a weighted average of pixel values of pixels corresponding to the same point of the object (O) in the plurality of object images.
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
85.
OPTICAL FIBER CABLE PRODUCTION METHOD, AND OPTICAL FIBER CABLE
An optical fiber cable includes: a core including optical fibers; a reinforcing wrap that surrounds the core; and a sheath that accommodates the core and the reinforcing wrap. The reinforcing wrap includes an overlapping portion. A first end portion of the reinforcing wrap overlaps a second end portion of the reinforcing wrap at a portion of the reinforcing wrap in a circumferential direction of the optical fiber cable in a cross-sectional view.
This integrated circuit comprises: an integrated circuit body which has a rectangular outer shape in plan view and in which a first side, a second side, a third side, and a fourth side are connected in an annular shape; and a plurality of first antenna connection terminals and a plurality of second antenna connection terminals arranged along each of the second side and the fourth side. The first antenna connection terminal disposed on the second side and the first antenna connection terminal disposed on the fourth side have a point-symmetric positional relationship with each other, with the center of the integrated circuit body as the point of symmetry. The second antenna connection terminal disposed on the second side and the second antenna connection terminal disposed on the fourth side have a point-symmetric positional relationship with each other, with the center of the integrated circuit body as the point of symmetry.
H01Q 1/52 - Means for reducing coupling between antennas Means for reducing coupling between an antenna and another structure
H01Q 21/24 - Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction
87.
INTEGRATED CIRCUIT, ANTENNA UNIT, AND ANTENNA MODULE
This integrated circuit is provided with: an integrated circuit body having a rectangular outer shape in a plan view in which a first side, a second side, a third side, and a fourth side are connected in a ring shape; and a plurality of first antenna connection terminals and a plurality of second antenna connection terminals disposed along each of the second side and the fourth side. The plurality of first antenna connection terminals and the plurality of second antenna connection terminals are line-symmetric with respect to a first reference line passing through a center in the plan view of the integrated circuit body and extending parallel to one of the second side and the fourth side. Furthermore, the plurality of first antenna connection terminals and the plurality of second antenna connection terminals have a point-symmetric positional relationship with each other with the center of the integrated circuit body as the point of symmetry.
H01Q 1/52 - Means for reducing coupling between antennas Means for reducing coupling between an antenna and another structure
H01Q 21/06 - Arrays of individually energised antenna units similarly polarised and spaced apart
H01Q 21/24 - Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction
An optical fiber cable includes: a core including an optical fiber; a first protective layer covering the core; and a second protective layer covering the first protective layer. An outer circumferential surface of the first protective layer has: one or more integrated regions fixed to or in pressure contact with the second protective layer; and one or more non-integrated regions neither fixed to nor in pressure contact with the second protective layer.
A method of producing a structure that includes: a delivery fiber; a small glass tube that covers a section including one end face of the delivery fiber; and a glass block that is joined to the one end face of the delivery fiber and that is joined to one end face of the small glass tube, the method includes: forming, at a portion other than the one end face of the small glass tube, a tapering section that includes, as part of a surface thereof, a sloping surface sloping at an angle of more than 0° and less than 90° to an optical axis of the delivery fiber; and inserting the delivery fiber into a small hole in the small glass tube.
A method of producing a structure that includes: a delivery fiber; a bridge fiber that is joined to one end face of the delivery fiber and that is larger in diameter than the delivery fiber; and a glass block that is joined to one end face of the bridge fiber, the method includes: forming, at a portion other than the one end face of the bridge fiber, a tapering section that includes, as part of a surface thereof, a sloping surface sloping at an angle of more than 0° and less than 90° to an optical axis of the bridge fiber; and fusion-splicing the delivery fiber and the tapering section of the bridge fiber using an optical fiber fusion splicer.
This semiconductor optical element comprises: a substrate; and a laminate in which a semiconductor layer of a first conductivity type, an active layer, and a semiconductor layer of a second conductivity type are laminated in the stated order from the substrate side. At least one of the semiconductor layer of the first conductivity type and the semiconductor layer of the second conductivity type has a first waveguide layer and a second waveguide layer. The second waveguide layer has a higher doping concentration than the first waveguide layer and is disposed between the first waveguide layer and the active layer.
An optical fiber cable includes a core including an optical fiber, a restricting member longitudinally attached to and covering the core, a sheath covering the restricting member, and a ripcord disposed between the sheath and the core and between a first part of the restricting member and a second part of the restricting member.
An adapter (2) comprises: an inner socket (30) that engages with a first optical connector (100); a housing (C) that houses the inner socket (30) and engages with a second optical connector (200); and a biasing part (40) that biases the inner socket (30) toward the second optical connector (200) by a third biasing force to the housing (C). The difference between a first biasing force of the first optical connector (100) and a second biasing force of the second optical connector (200) is larger than the difference between the third biasing force and the second biasing force.
This semiconductor package comprises a semiconductor substrate, at least two analog circuit regions, a digital circuit region, and a plurality of conductor parts. The digital circuit region is provided between the two analog circuit regions and is disposed so as to overlap the center line of the semiconductor substrate in plan view. The plurality of conductor parts are electrically connected to a digital circuit in the digital circuit region and are arranged so as to form a plurality of lines along the center line. The plurality of conductor parts include a plurality of control signal conductor parts for controlling a first analog circuit and a second analog circuit. The plurality of control signal conductor parts are arranged in a line along the center line.
Provided is an auxiliary tool comprising: a first housing; and a second housing capable of moving relative to the first housing. The first housing comprises: a first opening that opens toward an adapter, and that causes distal ends of a plurality of connectors to protrude toward the adapter; a second opening that opens toward the second housing; and an oscillating part that is capable of oscillating. The oscillating part has a plurality of release parts that respectively contact contact parts of the plurality of connectors when the first housing separates from the adapter. The plurality of release parts are arranged side-by-side in a parallel direction. An oscillation center of the oscillating part is positioned at an end of the oscillating part in the parallel direction, and when a distal end section of the oscillating part oscillates in a direction away from the contact parts of the connectors, a moment which causes the oscillating part to oscillate in a direction in which the connectors are removed from the adapter acts on the oscillating part.
An optical connector cleaning tool that cleans a connection end surface of an optical connector includes a cleaning shaft that includes a pressing surface that presses a cleaning element having a belt shape against the connection end surface and holds the cleaning element turned back at the pressing surface, a supply part that supplies the cleaning element to the pressing surface via a supply path, and a collection part that collects the cleaning element from the pressing surface via a collection path. The cleaning shaft further includes a first main surface and a second main surface opposite to the first main surface. The supply path and the collection path are along the first and second surfaces. The optical connector cleaning tool further includes a path reversing part that reverses the supply path and the collection path between the first main surface and the second main surface.
An optical connector cleaning tool (100) according to the present invention comprises: a cleaning shaft (160) that has, at a leading end thereof, a cleaning head (170) around which a cleaning body (105) is wound and which has a pressing surface (171a) that presses the cleaning body (105) against a connection end surface (12) of an optical connector (10); a guide nozzle (190) that accommodates the cleaning shaft (160) therein; and a case (120) that accommodates a base end portion of the guide nozzle (190) therein such that the guide nozzle (190) is capable of relative movement. The guide nozzle (190) and the case (120) are electrically conductive. The guide nozzle (190) is provided with a leaf spring part (198) that is in contact with the case (120) and presses the case (120), and the guide nozzle (190) and the case (120) are electrically connected through the leaf spring part (198).
An optical connector cleaning tool (100) is provided with: a cleaning shaft (160) provided with, at the tip thereof, a cleaning head (170) around which a cleaning body (105) is wound; a guide nozzle (190) that accommodates the cleaning shaft (160); and a case (120) that accommodates the base end portion of the guide nozzle (190) such that the guide nozzle (190) is allowed relative movement. The cleaning head (170), the guide nozzle (190), and the case (120) have conductivity. The cleaning head (170) and the guide nozzle (190) are electrically connected due to the cleaning head (170) and the guide nozzle (190) being partially in contact with each other. The guide nozzle (190) and the case (120) are electrically connected due to the guide nozzle (190) and the case (120) being partially in contact with each other.
An optical connection unit connected to a photonic integrated circuit, includes: optical fibers having different mode field diameters; a ferrule that holds the optical fibers; a ferrule-side microlens array that transmits optical signals from distal end surfaces of the optical fibers held by the ferrule toward the photonic integrated circuit; and light adjustment units in the ferrule-side microlens array that respectively correspond to the optical fibers. The light adjustment units vary in shape depending on the mode field diameters such that the optical signals transmitted through the light adjustment units become parallel light.
