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    EYEWEAR INCLUDING A PUSH-PULL LENS SET
    1.
    发明申请
    EYEWEAR INCLUDING A PUSH-PULL LENS SET 审中-公开

    公开(公告)号：WO2022132344A1

    公开(公告)日：2022-06-23

    申请号：PCT/US2021/058804

    申请日：2021-11-10

    Applicant: SNAP INC.

    Inventor： SCHUCK, Miller

    IPC: G02B5/04 ,  G02B27/01

    Abstract: Eyewear having a stereoscopic display including a lens system, and a push-pull lens set including prisms to produce a binocular overlap of two images that coincides with an accommodation plane. The overlap of two virtual images generated by a respective display as seen by the user's two eyes provides user comfort. The stereoscopic display may have a single accommodation plane, where the binocular overlap of the two virtual images depends on the location of the accommodation plane and the depth of the content formed by disparity in the two images. By providing the content at or near the location where the virtual images are at least substantially overlapped, the user viewing comfort is improved. The binocular overlap is controlled by tilting or steering the virtual images inward, such that the overlap occurs at the accommodation plane.

    COMPACT CATADIOPTRIC PROJECTOR
    2.
    发明申请
    COMPACT CATADIOPTRIC PROJECTOR 审中-公开

    公开(公告)号：WO2023038819A1

    公开(公告)日：2023-03-16

    申请号：PCT/US2022/041826

    申请日：2022-08-29

    Applicant: SNAP INC.

    Inventor： SCHUCK, Miller ,  BATES, Robert Matthew

    IPC: G02B17/08

    Abstract: A compact projector for eyewear including a refractive lens to achromatize an image and to reduce the size of the projector. The compact projector includes two total internal reflection (TIR) prisms, a polarizing beamsplitter, a quarter-wave plate, and the refractive lens combining refractive and reflective power, referred to as catadioptric. In one example, a light source generates light that is directed through a collector, into a first TIR prism, to the polarizing beamsplitter, and to a display panel. The display panel modulates the light and creates an image. The image is directed through the beamsplitter, into a second TIR prism, through a quarter-wave plate, and then to the refractive lens. The refractive lens reflects the image back into the second TIR prism, and which image then exits to a waveguide. In a second example, the display generates an illuminated image which is then processed as in the first example.

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