LIGHT-FIELD PROJECTOR GENERATING OPTICALLY CORRECTED VIRTUAL IMAGES AND METHOD OF GENERATING CORRECTED VIRTUAL IMAGES BY USING THE LIGHT FIELD PROJECTOR
A light-field projector comprising a light source configured to emit an incident light field illuminating a spatial light modulator (SLM) configured to display a reference SLM image pattern in an SLM plane. The reference SLM image pattern is configured to modulate the incident light field and generate a modulated light. A projection optic is configured to project the modulated light field along a reference optical axis such as to project a virtual image along the reference optical axis. The SLM is configured to display a corrected SLIM image pattern corresponding to the reference SLM image pattern shifted in the SLM plane, such that the virtual image is projected along an apparent projection axis that differs from the reference optical axis and such that the virtual image simulates at least an optical correction. The present disclosure further concerns a method for generating corrected virtual images by using the light field projector.
Light-field projector for projecting a near-eye projected image to the eyes of a user, comprising: a light source comprising a plurality of illumination point-lights configured for sequentially emitting a plurality of incident light fields; a spatial light modulator configured for providing a sequence of source images; the spatial light modulator being further configured for modulating each of the incident light-fields in accordance with the source images such as to project sequentially a plurality of pinhole-aperture light-fields, each pinhole-aperture light-fields carrying a light-field component from the source image; wherein each sequentially projected pinhole-aperture light-field forms an intersection virtual pinhole through which the component from the source image can be seen, each virtual pinholes having an aperture stop which is determined by the size of the illumination point-light and being spatially shifted in relation with each other, the near-eye projected image being seen through the plurality of virtual pinholes.
Light-field projector for projecting an image, the light-field projector comprising a light device (1) comprising at least one light source (10-12) sequentially generating an incident light-beam (101, 102): a collimating element (20) configured to collimate the incident light-beam (101, 102); and an optical light modulator (3) having a modulator surface area and configured to modulate the collimated incident light-beam (101, 102) and to project a modulated light-beam (201, 202). The light-field projector further comprises an optical waveguide module (30) comprising a waveguide (303) including an input grating (301) configured to couple the collimated incident light-beam (101, 102) to the waveguide (303), and an exit grating (302) configured to outcouple the collimated incident light-beam (101, 102) from the waveguide (303) and generate a plurality of expanded light-beams (201, 202); the plurality of expanded light-beam (201, 202) sequentially illuminating substantially the whole modulator surface area.
G02B 30/10 - Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images using integral imaging methods
4.
Near-eye light-filed display system having high efficiency and method of projecting a projection virtual pixel using the near-eye light-filed display system
The present disclosure concerns a near-eye light-field display system comprising an emissive display (1), containing a plurality of display pixels (10, 12), each display pixel (10, 12) having color information and being individually addressable to be set inactive or active where it generate a light beam (111); and a lens array (14) comprising an array including a plurality of lenses (140) and configured to project the light beams (111) of the active display pixels (10, 12) to form a projection virtual pixel image (26). The projection pixel image (26) having color information and a position in space that are determined by the number of the active display pixels (10, 12) and their position on the emissive display (1). The present disclosure further concerns a method of projecting a projection virtual pixel using the near-eye light-field display system.
Light-field projector for projecting an image, comprising: a light-field image source (1) comprising an image generating device (20a, 20b), including a plurality of pixel components (15a-15d) generating a plurality of modulated light beams (111); an imaging optical element (70) projecting an image of the plurality of modulated light beams (111) to a light-source image plane (34); projection optics (2) configured to project the modulated light beams (111) such as to define an eye-box (121) and to form projector pixel images (16a-16d); the projection optics (2) further configured to form projector pixel images (16a-16d) at a projector image plane (115) and projector virtual pixel image (26a) at a shifted plane (114). The imaging optical element (70) is configured such that the position of the projector image plane (115) coincides with the position of the shifted plane (114).
Near-eye image projection system having a pin-light source generating incident light beams; a SLM generating modulated light beams forming pin-light images at a first plane; illumination optics, in a third plane, delivering the incident light beams from the pin-light source to the SLM; and imaging optics delivering the modulated light beams along a projection axis, in a fourth plane, to an eye-box in a second plane parallel to the first plane. The third and fourth planes being substantially perpendicular to the first plane. The illumination optics defines a first optical path from the first plane to the second plane and a second optical path from the third plane to the fourth plane. The imaging optics defines a third optical path from the second plane to the first plane and a fourth optical path from the first plane to the second plane. A wearable device having the near-eye image projection system is also described.
A near-eye image projection system, comprising a pin-light array generating incident light beams illuminating an optical light modulator configured for modulating the incident light beams and projecting modulated light-beams; an optical element configured to project the modulated light beams such as to form pin-light images and project projected image light beams defining an eye-box region along a projection axis. The modulated light beams comprise foveal modulated light beams forming foveal pupil images and projecting foveal projected image light beams defining a foveal eye-box region, and peripheral modulated light beams forming peripheral pupil images. An exit pupil expansion device is configured to project pupil expanded light beams for each of the peripheral pin-light images and to form peripheral projected image light beams defining a peripheral eye-box region wider than the foveal eye-box region.
09 - Scientific and electric apparatus and instruments
28 - Games; toys; sports equipment
42 - Scientific, technological and industrial services, research and design
Goods & Services
Scientific, research, navigation, surveying, photographic,
cinematographic, audiovisual, optical, weighing, measuring,
signaling, detecting, testing, inspecting, life-saving and
teaching apparatus and instruments; apparatus and
instruments for conducting, switching, transforming,
accumulating, regulating or controlling the distribution or
use of electricity; apparatus and instruments for sound,
image or data recording, transmission, reproduction or
processing; recorded or downloadable media, software, blank
digital or analogue recording and storage media; mechanisms
for coin-operated apparatus; cash registers, calculating
devices; computers and computer peripherals; diving suits,
diving masks, earplugs for diving, nose clips for divers and
swimmers, diving gloves, breathing apparatus for underwater
swimming; fire extinguishers. Games, toys; video game apparatus; gymnastic and sporting
articles; Christmas tree decorations. Scientific and technological services as well as research
and design services relating thereto; industrial analysis
and industrial research services; design and development of
computers and software.
09 - Scientific and electric apparatus and instruments
28 - Games; toys; sports equipment
42 - Scientific, technological and industrial services, research and design
Goods & Services
Scientific, research, navigation, surveying, photographic,
cinematographic, audiovisual, optical, weighing, measuring,
signaling, detecting, testing, inspecting, life-saving and
teaching apparatus and instruments; apparatus and
instruments for conducting, switching, transforming,
accumulating, regulating or controlling the distribution or
use of electricity; apparatus and instruments for sound,
image or data recording, transmission, reproduction or
processing; recorded or downloadable media, software, blank
digital or analogue recording and storage media; mechanisms
for coin-operated apparatus; cash registers, calculating
devices; computers and computer peripherals; diving suits,
diving masks, earplugs for diving, nose clips for divers and
swimmers, diving gloves, breathing apparatus for underwater
swimming; fire extinguishers. Games, toys; video game apparatus; gymnastic and sporting
articles; Christmas tree decorations. Scientific and technological services as well as research
and design services relating thereto; industrial analysis
and industrial research services; design and development of
computers and software.
10.
Techniques for generating light field data by combining multiple synthesized viewpoints
Techniques for efficiently generating and displaying light-field data are disclosed. In one particular embodiment, the techniques may be realized as a method for generating light-field data, the method comprising receiving input image data, synthesizing a first plurality of viewpoints based on the input image data, synthesizing a second plurality of viewpoints based on cached image data, combining the first and second plurality of viewpoints, yielding a plurality of blended viewpoints, displaying the plurality of blended viewpoints, and caching image data associated with the plurality of blended viewpoints.
The present disclosure concerns a light-field projection system, comprising a pin-light array generating an incident light-field illuminating an optical light modulator for modulating the incident light-field and projecting a plurality of modulated light-field components along a projection axis; a first optical element configured for forming first pin-light images in a first pin-light plane and modulator images in a modulator image plane; and a second optical element defining an eye-box region and for forming second pin-light images in a second pin-light plane within the eye-box; the first and second pin-light planes and the modulator image plane being substantially perpendicular to the projection axis; the system further comprising at least one optical device at the first pin-light plane and being configured for interacting with at least one of the modulated light-field components, spatially shifting the modulated light-field components in the modulator image plane. The light-field projection allows for foveated projection.
09 - Scientific and electric apparatus and instruments
42 - Scientific, technological and industrial services, research and design
Goods & Services
Photographic, cinematographic, audiovisual, and optical apparatus and instruments, namely, an optical display system incorporating a light field display for use in connection with virtual and augmented reality headsets and glasses; apparatus and instruments for sound, image or data recording, transmission, reproduction or processing; recorded or downloadable software for processing digital images; computers and computer peripherals; headsets for virtual reality games Technological services, namely, research and design services in the field of augmented and virtual reality; design and development of computers and software
09 - Scientific and electric apparatus and instruments
42 - Scientific, technological and industrial services, research and design
Goods & Services
Photographic, cinematographic, audiovisual, and optical apparatus and instruments, namely, an optical display system incorporating a light field display for use in connection with virtual and augmented reality headsets and glasses; apparatus and instruments for sound, image or data recording, transmission, reproduction or processing; recorded or downloadable software for processing digital images; computers and computer peripherals; headsets for virtual reality games Technological services, namely, research and design services in the field of augmented and virtual reality; design and development of computers and software
14.
LIGHT-FIELD MIXED REALITY SYSTEM WITH CORRECT MONOCULAR DEPTH CUES TO A VIEWER
Light-field mixed reality system, comprising: a pin-light array generating an incident light-field illuminating an optical light modulator; the optical light modulator being configured for modulating the incident light-field and generating a modulated virtual light-field; and a combiner configured for reflecting the modulated virtual light-field and projecting a projected virtual light-field defining an eye box region along a projection axis; wherein the projected virtual light-field further forms an exit pupil of the pin-light array within the eye box and a virtual image of the optical light modulator, along the projection axis in front of the exit pupil, or behind the exit pupil; and wherein the combiner is further configured for transmitting natural light from the real world towards the eye box, such that both projected virtual light-field and natural light are projected within the eye box.
A near-eye image projection system, comprising a pin-light array (10) generating incident light beams (100a, 100b) illuminating an optical light modulator (20) configured for modulating the incident light beams and projecting modulated light-beams (110a, 110b); an optical element (32, 70, 40) configured to project the modulated light beams such as to form pin-light images (31, 39) and project projected image light beams (112a, 112b) defining an eye-box region (121a, 121b) along a projection axis (170). The modulated light beams comprise foveal modulated light beams (110a) forming foveal pupil images (31) and projecting foveal projected image light beams (112a) defining a foveal eye-box region (121a), and peripheral modulated light beams (110b) forming peripheral pupil images (39). An exit pupil expansion device (36, 38) is configured to project pupil expanded light beams (104) for each of the peripheral pin-light images (39) and to form peripheral projected image light beams (112b) defining a peripheral eye-box region (121a) wider than the foveal eye-box region.
The present disclosure concerns a light-field projection system, comprising a pin-light array (10) generating an incident light-field (100) illuminating an optical light modulator (20) for modulating the incident light-field (100) and projecting a plurality of modulated light-field components (110) along a projection axis (170); a first optical element (70, 32) configured for forming first pin-light images (31) in a first pin-light plane (30) and modulator images (114) in a modulator image plane (115); and a second optical element (40) defining an eye-box region (121) and for forming second pin-light images (120) in a second pin-light plane (124) within the eye-box (121); the first and second pin-light planes (30, 40) and the modulator image plane (115) being substantially perpendicular to the projection axis (170); the system further comprising at least one optical device (60, 61, 63, 64) at the first pin-light plane (30) and being configured for interacting with at least one of the modulated light-field components (110), spatially shifting the modulated light-field components in the modulator image plane (115). The light-field projection allows for foveated projection.
G02B 30/10 - Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images using integral imaging methods
G02B 30/24 - Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer’s left and right eyes of the stereoscopic type involving temporal multiplexing, e.g. using sequentially activated left and right shutters
G02B 30/29 - Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer’s left and right eyes of the autostereoscopic type involving lenticular arrays characterised by the geometry of the lenticular array, e.g. slanted arrays, irregular arrays or arrays of varying shape or size
G02B 30/36 - Stereoscopes providing a stereoscopic pair of separated images corresponding to parallactically displaced views of the same object, e.g. 3D slide viewers using refractive optical elements, e.g. prisms, in the optical path between the images and the observer
17.
Near-eye sequential light-field projector with correct monocular depth cues
Light-field projector for projecting a near-eye projected image to the eyes of a user, comprising: a light source comprising a plurality of illumination point-lights configured for sequentially emitting a plurality of incident light fields; a spatial light modulator configured for providing a sequence of source images; the spatial light modulator being further configured for modulating each of the incident light-fields in accordance with the source images such as to project sequentially a plurality of pinhole-aperture light-fields, each pinhole-aperture light-fields carrying a light-field component from the source image; wherein each sequentially projected pinhole-aperture light-field forms an intersection virtual pinhole through which the component from the source image can be seen, each virtual pinholes having an aperture stop which is determined by the size of the illumination point-light and being spatially shifted in relation with each other, the near-eye projected image being seen through the plurality of virtual pinholes.
Light-field projector for projecting a near-eye projected image to the eyes of a user, comprising: a light source (28) comprising a plurality of illumination point-lights (34, 36) configured for sequentially emitting a plurality of incident light fields (38, 40); a spatial light modulator (30) configured for providing a sequence of source images; the spatial light modulator (30) being further configured for modulating each of the incident light-fields (38, 40) in accordance with the source images such as to project sequentially a plurality of pinhole-aperture light-fields (16, 18), each pinhole-aperture light-fields (16, 18) carrying a light-field component from the source image; wherein each sequentially projected pinhole-aperture light-field (16, 18) forms an intersection virtual pinhole (20, 22) through which the component from the source image can be seen, each virtual pinholes (20, 22) having an aperture stop which is determined by the size of the illumination point-light (34, 36) and being spatially shifted in relation with each other, the near-eye projected image being seen through the plurality of virtual pinholes (20, 22).
