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61 条记录 (耗时 0.023 秒)

    Bidirectional holographic lens
    42.
    发明授权
    Bidirectional holographic lens 有权

    公开(公告)号：US10110883B2

    公开(公告)日：2018-10-23

    申请号：US15283163

    申请日：2016-09-30

    申请人： DAQRI, LLC

    发明人： Brian Mullins ,  Matthew Kammerait

    IPC分类号： H04N13/00 ,  G02F1/33 ,  G02B27/01 ,  G02F1/29 ,  H04N13/327 ,  H04N13/339 ,  H04N13/344 ,  H04N13/398 ,  G02B5/18 ,  G06T19/00 ,  G02B27/00

    摘要： A device can determine a distance to an object. The device can use the determined distance to vary a focal length of a first adjustable element so that the first adjustable element directs light from the object into a first waveguide and onto a detector, and forms an image of the object at the detector. The device can produce an image, such as augmented content, on a panel. The device can direct light from the panel into a second waveguide. The device can use the determined distance to vary a focal length of a second adjustable element so that the second adjustable element directs light out of the second waveguide and forms a virtual image of the panel in a plane coincident with the object. The device can operate as an augmented reality headset. The adjustable elements can be phase modulators, or acoustically responsive material with surface acoustic wave transducers.

    Correction polarization compensation optic for display systems
    43.
    发明授权
    Correction polarization compensation optic for display systems 有权

    公开(公告)号：US12047551B2

    公开(公告)日：2024-07-23

    申请号：US18316805

    申请日：2023-05-12

    申请人： Valve Corporation

    发明人： Joshua Mark Hudman

    IPC分类号： G02B27/01 ,  G02B27/28 ,  H04N13/337 ,  H04N13/339

    CPC分类号： H04N13/337 ,  G02B27/0172 ,  G02B27/286 ,  H04N13/339 ,  G02B2027/0178

    摘要： The present disclosure related generally to techniques for improving the performance and efficiency of display systems, such as laser scan beam display systems or other types of display systems (e.g., micro-displays). Display systems of the present disclosure may include a polarization compensation optic, such as a spatially varying polarizer, that provides phase retardation that varies as a function of position, which provides polarization compensation to provide light that is well suited for a polarization sensitive optic of the display system, such as a waveguide-based optical system, a pancake optical system, a birdbath optical system, a coating-based optical system, etc. The display systems of the present disclosure may be components of head-mounted display systems, or other types of display systems.

    Beam combining for highlight projection
    47.
    发明授权
    Beam combining for highlight projection 有权

    公开(公告)号：US11457185B2

    公开(公告)日：2022-09-27

    申请号：US17154694

    申请日：2021-01-21

    申请人： DOLBY LABORATORIES LICENSING CORPORATION

    发明人： Martin J. Richards ,  Barret Lippey

    IPC分类号： H04N9/31 ,  H04N13/334 ,  H04N13/356 ,  H04N13/337 ,  H04N13/359 ,  H04N13/363 ,  H04N13/332 ,  H04N13/339 ,  H04N13/341 ,  H04N13/351

    摘要： A novel projection system includes first and second light sources (e.g., sets of lasers), a spatial light modulator (SLM) that receives light from the first light source, and a beam steering device that receives light from the second light source and steers the light to highlight regions of the SLM. The SLM then modulates the light from both light sources to generate a highlighted imaging beam which can then be projected on a viewing surface. The highlighted imaging beam can represent a highlighted 2D image or a highlighted left- or right-eye view of a 3D image. The projection system thus improves peak brightness in the displayed highlighted images without incorporating a separate highlight projector or other expensive equipment. Methods for highlighting projected images are also described.

    DISPLAY APPARATUS FOR RENDERING THREE-DIMENSIONAL IMAGE AND METHOD THEREFOR
    49.
    发明申请
    DISPLAY APPARATUS FOR RENDERING THREE-DIMENSIONAL IMAGE AND METHOD THEREFOR 有权

    公开(公告)号：US20220163816A1

    公开(公告)日：2022-05-26

    申请号：US17670584

    申请日：2022-02-14

    申请人： Lightspace Technologies, SIA

    发明人： Ilmärs Osmanis ,  Kri{hacek over (s)}s Osmanis ,  Märtin{hacek over (s)} Narels ,  Rendijs Smukulis ,  Märcis Greitäns ,  Roberts Zabels

    IPC分类号： G02B30/35 ,  G02B27/01 ,  G02B30/52 ,  G02B27/12 ,  H04N13/346 ,  H04N13/351 ,  H04N13/344 ,  H04N13/339

    摘要： A display apparatus for presenting three-dimensional imagery, including an optical combiner having a first side, a second side, a third side and a fourth side. The second side is opposite to the first side and the fourth side being is opposite to the third side. Optical combiner further includes a first semi-transparent reflective portion arranged to reflect light incoming from the first side towards the fourth side and a second semi-transparent reflective portion arranged to reflect light incoming from the second side towards the fourth side. Light incoming from the third side passes through the first semi-transparent reflective portion and the second semi-transparent reflective portion towards the fourth side. The display apparatus further includes of a first display, a second display and a third display arranged at a first distance, a second distance and a third distance from the first side, the second side and the third side of the optical combiner, respectively, wherein a first image, a second image and a third image rendered at the first display, the second display and the third display are presented at a first focal distance, a second focal distance and a third focal distance, respectively, thereby creating the three-dimensional image.