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公开(公告)号：US11100830B2
公开(公告)日：2021-08-24
申请号：US16741397
申请日：2020-01-13
Applicant: NVIDIA Corporation
Inventor： Kaan Aksit
Abstract: A patch scanning display apparatus and a technique for reconstructing a target image frame on a projection surface is disclosed. The patch scanning display apparatus includes a backlight and a spatial light modulator (SLM). An optical scanning device scans the image projected by the SLM across the projection surface in accordance with a scan trajectory. A decomposition model is used to generate a set of image patches based on the target image frame and the scan trajectory. In an embodiment, the decomposition model is a projective non-negative matrix factorization model. The set of image patches are utilized to generate a modulation signal for the SLM and a binary backlight signal is then generated for each time step of the scan trajectory within a frame period to activate or deactivate the light-emitting elements of the backlight during the frame period at a high refresh rate while the projected image is scanned.
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公开(公告)号：US20170227773A1
公开(公告)日：2017-08-10
申请号：US15426984
申请日：2017-02-07
Applicant: NVIDIA Corporation
Inventor： Kaan Aksit , David Patrick Luebke
CPC classification number: G02B27/0172 , G02B5/0263 , G02B5/3083 , G02B26/023 , G02B27/2278 , G02B27/28 , G02B2027/0127 , G02B2027/0178 , H04N9/3129 , H04N9/3173
Abstract: A method and system for operating a catadioptric glasses system is presented. The method includes the steps of generating an image via a light engine included in a glasses system and projecting the image onto a display that includes a diffusion layer positioned between a curved mirror and a user's retina. Light emitted from a surface of the diffusion layer is reflected off the curved mirror to the user's retina through the diffusion layer, and the diffusion layer is located between a focal point of the curved mirror and a surface of the curved mirror. The diffusion layer may be mechanically moved relative to the user's eye to enable light to pass through transparent regions in the diffusion layer in a time multiplexed fashion. The glasses system may also include a mirror stack to enable different virtual images to be formed at different depths.
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公开(公告)号：US11663945B2
公开(公告)日：2023-05-30
申请号：US17380366
申请日：2021-07-20
Applicant: NVIDIA Corporation
Inventor： Kaan Aksit
CPC classification number: G09G3/02 , G09G3/3406 , G09G2320/0626
Abstract: A patch scanning display apparatus and a technique for reconstructing a target image frame on a projection surface is disclosed. The patch scanning display apparatus includes a backlight and a spatial light modulator (SLM). An optical scanning device scans the image projected by the SLM across the projection surface in accordance with a scan trajectory. A decomposition model is used to generate a set of image patches based on the target image frame and the scan trajectory. In an embodiment, the decomposition model is a projective non-negative matrix factorization model. The set of image patches are utilized to generate a modulation signal for the SLM and a binary backlight signal is then generated for each time step of the scan trajectory within a frame period to activate or deactivate the light-emitting elements of the backlight during the frame period at a high refresh rate while the projected image is scanned.
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公开(公告)号：US20210350732A1
公开(公告)日：2021-11-11
申请号：US17380366
申请日：2021-07-20
Applicant: NVIDIA Corporation
Inventor： Kaan Aksit
Abstract: A patch scanning display apparatus and a technique for reconstructing a target image frame on a projection surface is disclosed. The patch scanning display apparatus includes a backlight and a spatial light modulator (SLM). An optical scanning device scans the image projected by the SLM across the projection surface in accordance with a scan trajectory. A decomposition model is used to generate a set of image patches based on the target image frame and the scan trajectory. In an embodiment, the decomposition model is a projective non-negative matrix factorization model. The set of image patches are utilized to generate a modulation signal for the SLM and a binary backlight signal is then generated for each time step of the scan trajectory within a frame period to activate or deactivate the light-emitting elements of the backlight during the frame period at a high refresh rate while the projected image is scanned.
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公开(公告)号：US10481684B2
公开(公告)日：2019-11-19
申请号：US15815485
申请日：2017-11-16
Applicant: NVIDIA Corporation
Inventor： Ward Lopes , Kaan Aksit
Abstract: A method, computer readable medium, and system are disclosed for generating foveal images. The method includes the steps of redirecting first light rays towards an eye, where the first light rays are redirected by an optical combiner and produce a peripheral image and generating second light rays by a light engine. The second light rays are redirected towards the eye, where the second light rays intersect a first region of the optical combiner and converge at a nodal point within the eye and produce an inset foveal image positioned within at least a portion of the peripheral image. An origin of the second light rays is offset to intersect a second region of the optical combiner in response to a change in a gaze direction of the eye.
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Patent Agency Ranking
公开(公告)号：US20190079287A1
公开(公告)日：2019-03-14
申请号：US16186271
申请日：2018-11-09
Applicant: NVIDIA Corporation
Inventor： Jonghyun Kim , Kaan Aksit , Ward Lopes , David Patrick Luebke
CPC classification number: G02B27/0103 , G02B5/10 , G02B5/32 , G02B6/00 , G02B27/0172 , G02B27/141 , G02B2027/013 , G02B2027/0174 , G02B2027/0178
Abstract: A display method and system are disclosed for virtual/augmented reality. The method includes the steps of generating an image by a projection engine and projecting light rays defining the image onto a diffuser holographic optical element (DHOE) located between an observer and a concave mirror element, where a concave surface of the concave mirror element faces the observer. The light rays are projected onto the DHOE at a reference angle that causes the light rays to be diffused to the concave surface of the concave mirror element and the diffused light rays are reflected back to the observer such that the observer perceives a virtual image that appears to the observer at a position behind the concave mirror element and further from the observer than the concave mirror element.
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公开(公告)号：US20180164592A1
公开(公告)日：2018-06-14
申请号：US15815485
申请日：2017-11-16
Applicant: NVIDIA Corporation
Inventor： Ward Lopes , Kaan Aksit
Abstract: A method, computer readable medium, and system are disclosed for generating foveal images. The method includes the steps of redirecting first light rays towards an eye, where the first light rays are redirected by an optical combiner and produce a peripheral image and generating second light rays by a light engine. The second light rays are redirected towards the eye, where the second light rays intersect a first region of the optical combiner and converge at a nodal point within the eye and produce an inset foveal image positioned within at least a portion of the peripheral image. An origin of the second light rays is offset to intersect a second region of the optical combiner in response to a change in a gaze direction of the eye.
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公开(公告)号：US20210217338A1
公开(公告)日：2021-07-15
申请号：US16741397
申请日：2020-01-13
Applicant: NVIDIA Corporation
Inventor： Kaan Aksit
Abstract: A patch scanning display apparatus and a technique for reconstructing a target image frame on a projection surface is disclosed. The patch scanning display apparatus includes a backlight and a spatial light modulator (SLM). An optical scanning device scans the image projected by the SLM across the projection surface in accordance with a scan trajectory. A decomposition model is used to generate a set of image patches based on the target image frame and the scan trajectory. In an embodiment, the decomposition model is a projective non-negative matrix factorization model. The set of image patches are utilized to generate a modulation signal for the SLM and a binary backlight signal is then generated for each time step of the scan trajectory within a frame period to activate or deactivate the light-emitting elements of the backlight during the frame period at a high refresh rate while the projected image is scanned.
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公开(公告)号：US10401623B2
公开(公告)日：2019-09-03
申请号：US16186271
申请日：2018-11-09
Applicant: NVIDIA Corporation
Inventor： Jonghyun Kim , Kaan Aksit , Ward Lopes , David Patrick Luebke
Abstract: A display method and system are disclosed for virtual/augmented reality. The method includes the steps of generating an image by a projection engine and projecting light rays defining the image onto a diffuser holographic optical element (DHOE) located between an observer and a concave mirror element, where a concave surface of the concave mirror element faces the observer. The light rays are projected onto the DHOE at a reference angle that causes the light rays to be diffused to the concave surface of the concave mirror element and the diffused light rays are reflected back to the observer such that the observer perceives a virtual image that appears to the observer at a position behind the concave mirror element and further from the observer than the concave mirror element.
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公开(公告)号：US10317678B2
公开(公告)日：2019-06-11
申请号：US15426984
申请日：2017-02-07
Applicant: NVIDIA Corporation
Inventor： Kaan Aksit , David Patrick Luebke
Abstract: A method and system for operating a catadioptric glasses system is presented. The method includes the steps of generating an image via a light engine included in a glasses system and projecting the image onto a display that includes a diffusion layer positioned between a curved mirror and a user's retina. Light emitted from a surface of the diffusion layer is reflected off the curved mirror to the user's retina through the diffusion layer, and the diffusion layer is located between a focal point of the curved mirror and a surface of the curved mirror. The diffusion layer may be mechanically moved relative to the user's eye to enable light to pass through transparent regions in the diffusion layer in a time multiplexed fashion. The glasses system may also include a mirror stack to enable different virtual images to be formed at different depths.
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