HOLOGRAPHIC OPTICAL APPARATUS, HOLOGRAPHIC OPTICAL SYSTEM, AND HOLOGRAPHIC DISPLAY SYSTEM

    公开(公告)号:US20210240133A1

    公开(公告)日:2021-08-05

    申请号:US17262959

    申请日:2020-05-25

    IPC分类号: G03H1/04 G03H1/02

    摘要: A holographic optical apparatus includes a beam splitting component, a transmission assembly, a focal length modulation component and an optical element. The beam splitting component splits received light into reference light and signal light that are coherent light, and outputs the reference light and the signal light. The focal length modulation component includes a plurality of local length modulation regions with different focal lengths. The optical element includes a recording medium layer with a plurality of recording regions, and each recording region is located in a light-exit path of a focal length modulation region. The transmission assembly is disposed in a light-exit path of the beam splitting component, transmit the reference light to the plurality of recording regions and transmit the signal light to the plurality of focal length modulation regions.

    NEAR-EYE DISPLAY DEVICE AND NEAR-EYE DISPLAY SYSTEM

    公开(公告)号:US20210364800A1

    公开(公告)日:2021-11-25

    申请号:US16962273

    申请日:2020-02-17

    IPC分类号: G02B27/01 F21V8/00

    摘要: Disclosed are a near-eye display device and a near-eye display system. The excitation light source structure provides excitation light to the first waveguide structure, and the outgoing coupling grating structure corresponding to the first waveguide structure receiving the excitation light may be further irradiated by the excitation light, and be excited and output the light with a pixel color corresponding to the first waveguide structure. That is, the outgoing coupling grating structure corresponding to the first waveguide structure receiving the excitation light can derive the light with the corresponding pixel color emitted by the projection-based display, and be excited by the excitation light emitted by the excitation light source structure to output light with a pixel color corresponding to the first waveguide structure.