RETINAL CAMERAS HAVING MOVABLE OPTICAL STOPS

    公开(公告)号:US20240032793A1

    公开(公告)日:2024-02-01

    申请号:US18485255

    申请日:2023-10-11

    CPC classification number: A61B3/14 A61B3/113 A61B3/12 G02F1/1334

    Abstract: Introduced here are retinal cameras having optical stops whose size and/or position can be modified to increase the size of the space in which an eye can move while being imaged. In some embodiments, an optical stop is mechanically moved to recover retinal image quality as the subject shifts their eye. In some embodiments, an optical stop is digitally created using a pixelated liquid crystal display (LCD) layer having multiple pixels that are individually controllably. In some embodiments, multiple non-pixelated LCD layers are connected to one another to form a variable transmission stack, and each LCD layer within the variable transmission stack may be offset from the other LCD layers. In such embodiments, the optical stop can be moved by changing which LCD layer is active at a given point in time.

    RETINAL CAMERAS HAVING MOVABLE OPTICAL STOPS

    公开(公告)号:US20200237214A1

    公开(公告)日:2020-07-30

    申请号:US16649437

    申请日:2018-09-19

    Abstract: Introduced here are retinal cameras having optical stops whose size and/or position can be modified to increase the size of the space in which an eye can move while being imaged. In some embodiments, an optical stop is mechanically moved to recover retinal image quality as the subject shifts their eye. In some embodiments, an optical stop is digitally created using a pixelated liquid crystal display (LCD) layer having multiple pixels that are individually controllably. In some embodiments, multiple non-pixelated LCD layers are connected to one another to form a variable transmission stack, and each LCD layer within the variable transmission stack may be offset from the other LCD layers. In such embodiments, the optical stop can be moved by changing which LCD layer is active at a given point in time.

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