Polarized reflective pinhole mirror display

    公开(公告)号:US11880039B2

    公开(公告)日:2024-01-23

    申请号:US17897351

    申请日:2022-08-29

    Applicant: Snap Inc.

    Abstract: A see-through display including a polarized reflective pinhole mirror display. The pinhole mirror display includes a plurality of tiny switchable polarized mirrors. The respective polarized mirrors individually reflect impinging light from an illuminator, and guide the respective portion of light into a pupil of an eye. A reflective optically powered surface reflects light from the illuminator. Each mirror has a first polarization and reflects a portion of light and produces a picture element (pixel) that forms a virtual image seen by the eye of the user. A user may view the reflected virtual image having the first polarization from the illuminator, as well as the image from the real world via a rear substrate that has a second polarization. Although the mirrors are very small, human eyes can still detect the mirrors if they are not polarized. The mirrors and other components are polarized so that the eye can see the real world filtered with the second polarization, but not the mirrors having a different first polarization.

    OPHTHALMIC IMAGING USING A HEAD-WORN DEVICE

    公开(公告)号:US20220280037A1

    公开(公告)日:2022-09-08

    申请号:US17651857

    申请日:2022-02-21

    Applicant: Snap Inc.

    Abstract: Disclosed is a method of conducting an ophthalmic evaluation using an augmented reality or virtual reality head-worn device including one or more display devices and one or more cameras facing towards an eye of the user in use. The method comprises displaying an ophthalmic evaluation user interface item on a display device, receiving user selection of the user interface item, illuminating an eye of the user, capturing at least one image of the eye of the user; and analyzing the at least one image to assess the health of the eye of the user.

Patent Agency Ranking