Abstract

A stereoscopic light recycling device is provided. A beam splitter is constructed of substantially orthogonally polarizing material on which divergent image light is received and is positioned at an angle to a source of the divergent image light. A phase shifting optic includes a reflective surface coated by a phase shifting film and is positioned at an angle non-perpendicular to at least a portion of the image light from the beam splitter. The angle of the phase shifting optic is dependent on the angle of the beam splitter.

IPC Classes  ?

• G03B 35/22 - Stereoscopic photography by simultaneous viewing using single projector with stereoscopic-base-defining system
• G02B 27/28 - Optical systems or apparatus not provided for by any of the groups , for polarising
• H04N 13/337 - Displays for viewing with the aid of special glasses or head-mounted displays [HMD] using polarisation multiplexing
• G02B 5/08 - Mirrors
• H04N 13/341 - Displays for viewing with the aid of special glasses or head-mounted displays [HMD] using temporal multiplexing
• G03B 21/28 - Reflectors in projection beam
• G03B 21/54 - Accessories
• G03B 35/16 - Stereoscopic photography by sequential viewing
• G03B 35/26 - Stereoscopic photography by simultaneous viewing using polarised or coloured light for separating different viewpoint images
• H04N 13/363 - Image reproducers using image projection screens
• G02B 27/26 - Other optical systems; Other optical apparatus for producing stereoscopic or other three-dimensional effects involving polarising means
• G02B 7/182 - Mountings, adjusting means, or light-tight connections, for optical elements for prismsMountings, adjusting means, or light-tight connections, for optical elements for mirrors for mirrors
• G02B 13/16 - Optical objectives specially designed for the purposes specified below for use in conjunction with image converters or intensifiers
• G02B 27/22 - Other optical systems; Other optical apparatus for producing stereoscopic or other three-dimensional effects
• G02B 5/30 - Polarising elements
• H04N 9/31 - Projection devices for colour picture display

Abstract

A method for constructing a stereoscopic light recycling device is provided. At least one support member is affixed to a beam splitter positioned at an angle and constructed of orthogonally polarizing material on which image light is received. A phase shifting optic having a reflective surface coated by a phase shifting film is positioned at an angle non-perpendicular to at least a portion of the image light from the beam splitter. The phase shifting optic includes one of a uniform and non-uniform surface.

IPC Classes  ?

• G03B 35/22 - Stereoscopic photography by simultaneous viewing using single projector with stereoscopic-base-defining system
• H04N 13/337 - Displays for viewing with the aid of special glasses or head-mounted displays [HMD] using polarisation multiplexing
• H04N 13/341 - Displays for viewing with the aid of special glasses or head-mounted displays [HMD] using temporal multiplexing
• G02B 27/26 - Other optical systems; Other optical apparatus for producing stereoscopic or other three-dimensional effects involving polarising means
• G03B 21/28 - Reflectors in projection beam
• G03B 21/54 - Accessories
• G03B 35/16 - Stereoscopic photography by sequential viewing
• G03B 35/26 - Stereoscopic photography by simultaneous viewing using polarised or coloured light for separating different viewpoint images
• G02B 5/08 - Mirrors
• G02B 7/182 - Mountings, adjusting means, or light-tight connections, for optical elements for prismsMountings, adjusting means, or light-tight connections, for optical elements for mirrors for mirrors
• G02B 13/16 - Optical objectives specially designed for the purposes specified below for use in conjunction with image converters or intensifiers
• G02B 27/22 - Other optical systems; Other optical apparatus for producing stereoscopic or other three-dimensional effects
• G02B 27/28 - Optical systems or apparatus not provided for by any of the groups , for polarising
• G02B 5/30 - Polarising elements
• H04N 9/31 - Projection devices for colour picture display
• H04N 13/363 - Image reproducers using image projection screens

Abstract

A stereoscopic device light recycling device and method of construction thereof is provided. A beam splitter is constructed of substantially orthogonally polarizing material on which image light is received. At least one support member is affixed to the beam splitter and is configured to hold the beam splitter at an angle. A phase shifting optic includes a reflective surface coated by a phase shifting film and is positioned at an angle non-perpendicular to at least a portion of the image light from the beam splitter. The angle of the beam splitter is dependent on the angle of the phase shifting optic.

IPC Classes  ?

• G03B 35/22 - Stereoscopic photography by simultaneous viewing using single projector with stereoscopic-base-defining system
• H04N 9/31 - Projection devices for colour picture display
• G02B 5/30 - Polarising elements
• G02B 5/08 - Mirrors
• G02B 27/26 - Other optical systems; Other optical apparatus for producing stereoscopic or other three-dimensional effects involving polarising means
• G02B 27/28 - Optical systems or apparatus not provided for by any of the groups , for polarising
• G02B 27/22 - Other optical systems; Other optical apparatus for producing stereoscopic or other three-dimensional effects

Abstract

A method for constructing a stereoscopic device is provided. A chassis with front and back openings and that forms a housing framing the front and back openings is constructed. A beam splitter constructed of substantially orthogonally polarizing material faces the back opening and is captively held to the chassis. A single phase shifting optic having a reflective surface coated by a phase shifting film on which the divergent image light is received is placed at an angle non-perpendicular to the divergent image light, such that the phase shifting optic is facing toward the front opening and is substantially parallel to the polarizing material of the beam splitter. The beam splitter and phase shifting optic are in optical alignment with each other within the chassis. A modulator sized to cover at least a portion of the front opening is positioned in front of the front opening.

IPC Classes  ?

• H04N 13/04 - Picture reproducers
• G02B 27/22 - Other optical systems; Other optical apparatus for producing stereoscopic or other three-dimensional effects
• G02B 13/16 - Optical objectives specially designed for the purposes specified below for use in conjunction with image converters or intensifiers
• G02B 5/08 - Mirrors
• G02B 7/182 - Mountings, adjusting means, or light-tight connections, for optical elements for prismsMountings, adjusting means, or light-tight connections, for optical elements for mirrors for mirrors
• G02B 27/26 - Other optical systems; Other optical apparatus for producing stereoscopic or other three-dimensional effects involving polarising means
• G02B 27/28 - Optical systems or apparatus not provided for by any of the groups , for polarising
• G03B 21/28 - Reflectors in projection beam
• G03B 21/54 - Accessories
• G03B 35/16 - Stereoscopic photography by sequential viewing
• G03B 35/26 - Stereoscopic photography by simultaneous viewing using polarised or coloured light for separating different viewpoint images

Abstract

A stereoscopic device (13) for recapturing light is provided. A chassis (30a-d) is open on front (35) and back (36) sides and forms a rectangular housing with top, bottom, and two sides that frame the front (35) and back (36) openings. A polarizing beam splitter (31) is angled away from the back (36) opening of the chassis (30a-d) and captively held by the chassis (30a-d). The beam splitter (31) is constructed of substantially orthogonally polarizing material. A phase shifting optic (32) having a reflective surface coated by a phase shifting film is angled toward the front (35) opening, wherein the beam splitter (31) and phase shifting optic (32) are in optical alignment with each other within the chassis (30a-d), so as to split the light into two separate light beams that each provide a separate, but similar, stereoscopic image that is displayed on a polarization- preserving screen. A modulator (21) sized to cover the front (35) opening is positioned in front of the chassis (30a-d).

IPC Classes  ?

• G03B 21/28 - Reflectors in projection beam
• G03B 21/54 - Accessories

Abstract

A stereoscopic device for recapturing light is provided. A chassis is open on front and back sides and forms a rectangular housing with top, bottom, and two sides that frame the front and back openings. A polarizing beam splitter is angled away from the back opening of the chassis and captively held by the chassis. The beam splitter is constructed of substantially orthogonally polarizing material. A phase shifting optic having a reflective surface coated by a phase shifting film is angled toward the front opening, wherein the beam splitter and phase shifting optic are in optical alignment with each other within the chassis. A modulator sized to cover the front opening is positioned in front of the chassis.

IPC Classes  ?

• G02B 27/26 - Other optical systems; Other optical apparatus for producing stereoscopic or other three-dimensional effects involving polarising means
• G03B 21/28 - Reflectors in projection beam
• G03B 21/54 - Accessories
• G03B 35/16 - Stereoscopic photography by sequential viewing
• G03B 35/26 - Stereoscopic photography by simultaneous viewing using polarised or coloured light for separating different viewpoint images
• H04N 13/04 - Picture reproducers

Abstract

A stereoscopic device (13) for recapturing light is provided. A chassis (30a-d) is open on front (35) and back (36) sides and forms a rectangular housing with top, bottom, and two sides that frame the front (35) and back (36) openings. A polarizing beam splitter (31) is angled away from the back (36) opening of the chassis (30a-d) and captively held by the chassis (30a-d). The beam splitter (31) is constructed of substantially orthogonally polarizing material. A phase shifting optic (32) having a reflective surface coated by a phase shifting film is angled toward the front (35) opening, wherein the beam splitter (31) and phase shifting optic (32) are in optical alignment with each other within the chassis (30a-d), so as to split the light into two separate light beams that each provide a separate, but similar, stereoscopic image that is displayed on a polarization- preserving screen. A modulator (21) sized to cover the front (35) opening is positioned in front of the chassis (30a-d).

IPC Classes  ?

• G03B 21/28 - Reflectors in projection beam
• G03B 21/54 - Accessories
• G03B 35/16 - Stereoscopic photography by sequential viewing
• G03B 35/26 - Stereoscopic photography by simultaneous viewing using polarised or coloured light for separating different viewpoint images
• H04N 13/04 - Picture reproducers

Abstract

A video controller for synchronizing presentation of a plurality of images is provided. A color switching device is operable to continually select a color out of a set consisting essentially of a plurality of fundamental colors. Each fundamental color is selected for presentation for a fixed time segment. A light processing element is operable to block and permit transmission of light in each color selected by the color switching device during each fixed time segment. The light includes at least two streams of sequential images. A synch signal generator is in control of the light processing element and is configured to time presentation of the light by the light processing element and of control signals to a viewing device of the display. The presentation of the light and of the control signals is timed in synchrony with the fixed time segments only during a transition state of the viewing device.

IPC Classes  ?

• H04N 13/04 - Picture reproducers
• G03B 33/00 - Colour photography, other than mere exposure or projection of a colour film
• G03B 35/16 - Stereoscopic photography by sequential viewing
• G03B 35/24 - Stereoscopic photography by simultaneous viewing using apertured or refractive resolving means on screen or between screen and eye
• H04N 9/31 - Projection devices for colour picture display

Abstract

A system and method for improving stereoscopic images produced by a projecting device containing a single chip DMD, seen through an eye-switching device, such as a pair of liquid crystal (LC) shutter glasses. The system and method are used with a video projector used with a multiple-color, color switching device The color switching device produces Blue, Red and Green lights and at least one non-critical segment. A color sequencing firmware resident in the video projector is used to align a non-critical segment in front of the projector's main light source during the eye-switching device's unstable transition phase. If the non-critical segment is transmissive, the firmware controls the DMD so light is discontinued. If the non-critical segment is non-transmissive, light is physically blocked. If the non-critical segment is electronically defined, the firmware directly controls the DMD to discontinue the transmission of light for the duration of device's unstable transition phase.

IPC Classes  ?

• G03B 21/00 - Projectors or projection-type viewersAccessories therefor
• H04N 13/04 - Picture reproducers

Goods & Services

Stereoscopic video projectors stereocopic computer media server software for used in producing stereoscopic images, computer hardware, autostereoscopic display monitors, eyeglasses for stereoscopic viewing, stereoscopic display systems, namely video projector systems; Computer media server software and hardware for use in playback of conventional digital video, digital cinematic films, and multiple simultaneous images