WAVEGUIDE ILLUMINATOR
    1.
    发明申请

    公开(公告)号:US20250164804A1

    公开(公告)日:2025-05-22

    申请号:US19030440

    申请日:2025-01-17

    Abstract: A head mounted display system configured to project a first image to an eye of a user, the head mounted display system includes at least one waveguide comprising a first major surface, a second major surface opposite the first major surface, and a first edge and a second edge between the first major surface and second major surface. The at least one waveguide also includes a first reflector disposed between the first major surface and the second major surface. The head mounted display system also includes at least one light source disposed closer to the first major surface than the second major surface and a spatial light modulator configured to form a second image and disposed closer to the first major surface than the second major surface, wherein the first reflector is configured to reflect light toward the spatial light modulator.

    AUGMENTED REALITY DISPLAY HAVING MULTI-ELEMENT ADAPTIVE LENS FOR CHANGING DEPTH PLANES

    公开(公告)号:US20250164801A1

    公开(公告)日:2025-05-22

    申请号:US19027972

    申请日:2025-01-17

    Abstract: In some embodiments, an augmented reality system includes at least one waveguide that is configured to receive and redirect light toward a user, and is further configured to allow ambient light from an environment of the user to pass therethrough toward the user. The augmented reality system also includes a first adaptive lens assembly positioned between the at least one waveguide and the environment, a second adaptive lens assembly positioned between the at least one waveguide and the user, and at least one processor operatively coupled to the first and second adaptive lens assemblies. Each lens assembly of the augmented reality system is selectively switchable between at least two different states in which the respective lens assembly is configured to impart at least two different optical powers to light passing therethrough, respectively. The at least one processor is configured to cause the first and second adaptive lens assemblies to synchronously switch between different states in a manner such that the first and second adaptive lens assemblies impart a substantially constant net optical power to ambient light from the environment passing therethrough.

    VIRTUAL AND AUGMENTED REALITY SYSTEMS AND METHODS

    公开(公告)号:US20240411141A1

    公开(公告)日:2024-12-12

    申请号:US18811513

    申请日:2024-08-21

    Inventor: Hui-Chuan Cheng

    Abstract: An imaging system includes a light source configured to generate a light beam. The system also includes first and second light guiding optical elements having respective first and second entry portions, and configured to propagate at least respective first and second portions of the light beam by total internal reflection. The system further includes a light distributor having a light distributor entry portion, a first exit portion, and a second exit portion. The light distributor is configured to direct the first and second portions of the light beam toward the first and second entry portions, respectively. The light distributor entry portion and the first exit portion are aligned along a first axis. The light distributor entry portion and the second exit portion are aligned along a second axis different from the first axis.

    AUGMENTED REALITY DISPLAY HAVING MULTI-ELEMENT ADAPTIVE LENS FOR CHANGING DEPTH PLANES

    公开(公告)号:US20230296904A1

    公开(公告)日:2023-09-21

    申请号:US18200327

    申请日:2023-05-22

    Abstract: In some embodiments, an augmented reality system includes at least one waveguide that is configured to receive and redirect light toward a user, and is further configured to allow ambient light from an environment of the user to pass therethrough toward the user. The augmented reality system also includes a first adaptive lens assembly positioned between the at least one waveguide and the environment, a second adaptive lens assembly positioned between the at least one waveguide and the user, and at least one processor operatively coupled to the first and second adaptive lens assemblies. Each lens assembly of the augmented reality system is selectively switchable between at least two different states in which the respective lens assembly is configured to impart at least two different optical powers to light passing therethrough, respectively. The at least one processor is configured to cause the first and second adaptive lens assemblies to synchronously switch between different states in a manner such that the first and second adaptive lens assemblies impart a substantially constant net optical power to ambient light from the environment passing therethrough.

    Multi-focal display system and method

    公开(公告)号:US11520164B2

    公开(公告)日:2022-12-06

    申请号:US17327924

    申请日:2021-05-24

    Inventor: Hui-Chuan Cheng

    Abstract: Configurations are disclosed for presenting virtual reality and augmented reality experiences to users. The system may comprise a scanning device for scanning one or more frames of image data. The scanning device may be communicatively coupled to an image source to receive the image data. The system may further comprise a variable focus element (VFE) operatively coupled to the scanning device for focusing the one or more frames of image data on an intermediate image plane, wherein the intermediate image plane is aligned to one of a plurality of switchable screens. The plurality of switchable screens may spread light associated with the intermediate image plane to specific viewing distances. The system may also comprise viewing optics operatively coupled to the plurality of switchable screens to relay the one or more frames of image data.

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