Optical Apparatus, Module and Device
    1.
    发明公开

    公开(公告)号:US20230408834A1

    公开(公告)日:2023-12-21

    申请号:US18035140

    申请日:2021-10-27

    Abstract: An apparatus for controlling brightness of images includes: a first light guide including an in-coupling diffraction grating configured to in-couple input beams of light from a first light engine, an expanding grating configured to expand the input beams of light, and an out-coupling diffraction grating configured to out-couple the expanded beams of light; and a second light guide including at least; an in-coupling diffraction grating configured to in-couple input beams of light from a second light engine, an expanding grating configured to expand the input beams of light, and an out-coupling diffraction grating configured to out-couple the expanded beams of light. The out-coupling diffraction grating of the first light guide at least partially overlaps the out-coupling diffraction grating of the second light guide so that images are overlaid to control brightness of images provided by the apparatus.

    Display of Visual Data with a Virtual Reality Headset

    公开(公告)号:US20190266802A1

    公开(公告)日:2019-08-29

    申请号:US16340801

    申请日:2017-09-27

    Abstract: This specification describes a method including determining a resolution of visual source content, determining a resolution and a field of view of a display of a virtual reality headset, determining, based at least in part on the resolution of the visual source content; the resolution of the display; and the field of view of the display: a field of view for display of visual data corresponding to the visual source content in the virtual reality space, and a projection shape for display of the visual data corresponding to the visual source content in the virtual reality space, the projection shape including one of a flat projection, a horizontally curved projection, a vertically curved projection, a spherical projection, and a combination thereof.

    Optical Apparatuses, Systems and Methods
    5.
    发明公开

    公开(公告)号:US20230324682A1

    公开(公告)日:2023-10-12

    申请号:US18025023

    申请日:2021-08-23

    Abstract: An apparatus includes: first and second light guides, each light guide respectively including: a plurality of diffractive optical elements configured to: in-couple one or more input beams of light into the light guides, expand the input beams of light, and out-couple the expanded beams of light from the light guides to provide expanded output light beams; wherein the out-coupling diffractive optical elements include a plurality of sections thereof that are independently switch able between a first and second out-coupling states. A section of the out-coupling diffractive guide in the first out-coupling state permits the out-coupling of the expanded beams of light therefrom. A section of the out-coupling diffractive guide in the second out-coupling state precludes the out-coupling of the expanded beams of light therefrom. The out-coupling diffractive guides at least partially overlap.

    Apparatus, Method, and System for Use in a Display

    公开(公告)号:US20220082824A1

    公开(公告)日:2022-03-17

    申请号:US17414151

    申请日:2018-12-27

    Abstract: Certain examples of the present invention relate to an apparatus, method, and system for use in a display Certain examples provide an apparatus including a waveguide including a plurality of diffractive sections configured to: in-couple an input beam of light into the waveguide, expand the input beam of light, and out-couple the expanded beam of light from the waveguide to provide an expanded output light beam configured for use in a reflection based heads-up display system wherein the expanded output light beam is directed to a curved reflective surface, having a non-zero optical power, for reflection therefrom to a user's eye; wherein the waveguide is configured to adjust the expanded output light beam so as to compensate for the optical power of the curved reflective surface and provide a collimated reflected expanded output light beam to the user's eye.

    VIRTUAL REALITY VIDEO PROCESSING
    8.
    发明申请

    公开(公告)号:US20190045125A1

    公开(公告)日:2019-02-07

    申请号:US16036310

    申请日:2018-07-16

    Abstract: A method is disclosed, comprising providing video data representing a plurality of frames of virtual reality content captured by a camera. A further step comprises determining a reference depth or object within the content. A further step comprises adjusting the position of content in one or more frames, based on the reference depth or object, to compensate for the movement of the camera during capture.

    Gaze Dependent Foveated Rendering Apparatus, Method, Computer Program and System

    公开(公告)号:US20210174768A1

    公开(公告)日:2021-06-10

    申请号:US16771764

    申请日:2017-12-19

    Abstract: Certain examples of the present invention relate to an apparatus, method, computer program and system for use in gaze dependent foveated rendering. Certain examples provide an apparatus including at least one processor; and at least one memory including computer program code; the at least one memory and the computer program code configured to, with the at least one processor, cause the apparatus at least to perform adapting a gaze dependent foveated rendering process in response to a determination of a sub-optimal operational condition of the gaze dependent foveated rendering process.

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