Four-Piece All-Aspheric Adapter Fisheye Lens
    21.
    发明申请
    Four-Piece All-Aspheric Adapter Fisheye Lens 有权
    四片全非球面适配器鱼眼镜头

    公开(公告)号:US20160054547A1

    公开(公告)日:2016-02-25

    申请号:US14465146

    申请日:2014-08-21

    Abstract: A four-piece all-aspheric adapter fisheye lens includes a negative meniscus lens, a biconcave lens, a positive meniscus lens, and a biconvex lens. The biconcave lens is between the negative meniscus lens and the positive meniscus lens; the positive meniscus lens is between the biconcave lens and the biconvex lens. The negative meniscus lens, the biconcave lens, the positive meniscus lens, and the biconvex lens are coaxial and arranged with an exit pupil to cooperatively generate an image with a camera lens that has greater field of view than the camera lens alone when the exit pupil is coplanar and coaxial with an entrance pupil of the camera lens. Each of the negative meniscus lens, the biconcave lens, the positive meniscus lens, and the biconvex lens has an aspheric object-side surface and an aspheric image-side surface.

    Abstract translation: 四片全非球面适配器鱼眼镜片包括负弯月透镜,双凹透镜,正弯月透镜和双凸透镜。 双凹透镜位于负弯月透镜和正弯月透镜之间; 正弯月透镜位于双凹透镜和双凸透镜之间。 负弯月透镜,双凸透镜,正弯月透镜和双凸透镜同轴并布置有出射光瞳,以便在出射光瞳上与摄像机镜头独立地具有更大的视野的相机镜头协同地产生图像 与摄像机镜头的入射光瞳共面和同轴。 负弯月形透镜,双凹透镜,正弯月透镜和双凸透镜中的每一个具有非球面物体侧表面和非球面图像侧表面。

    Wafer level camera having movable color filter grouping
    22.
    发明授权
    Wafer level camera having movable color filter grouping 有权
    具有可移动滤色器分组的晶片级相机

    公开(公告)号:US09270953B2

    公开(公告)日:2016-02-23

    申请号:US14279744

    申请日:2014-05-16

    CPC classification number: H04N9/045 H04N5/2254 H04N5/369 H04N9/04 H04N9/07

    Abstract: An image capture unit includes an image sensor and a lens structure disposed proximate to the image sensor to focus an image onto the image sensor. A movable color filter grouping is disposed over the lens structure. The movable color filter grouping includes a plurality of N color filters arranged therein such that all light that is incident upon the image sensor through the lens structure is directed through only one of the plurality of N color filters of the movable color filter grouping per each exposure of the image sensor. A positioning device is attached to the movable color filter grouping to reposition the movable color filter grouping such that substantially all of the light that is incident upon the image sensor through the lens structure is directed through a different one of the plurality of N color filters for each successive exposure of the image sensor.

    Abstract translation: 图像捕获单元包括图像传感器和靠近图像传感器设置的透镜结构,以将图像聚焦到图像传感器上。 可移动的滤色器分组设置在透镜结构的上方。 可移动滤色器组包括布置在其中的多个N个滤色器,使得通过透镜结构入射到图像传感器上的所有光仅通过每个曝光的可移动滤色器组的多个N个滤色器中的一个被引导 的图像传感器。 定位装置附接到可移动滤色器分组以重新定位可移动滤色器组,使得通过透镜结构入射到图像传感器上的基本上所有的光被引导通过多个N个滤色器中的不同的一个, 每次连续曝光图像传感器。

    Multi-element wide-field lens for wafer-assembled chip-cube cameras

    公开(公告)号:US12287464B2

    公开(公告)日:2025-04-29

    申请号:US18086522

    申请日:2022-12-21

    Abstract: A chip-level camera includes an image sensor; a concave L1 lens element on an inside surface of a first substrate; a convex L2 lens element on a first surface of a second substrate; a diaphragm stop on a second surface of the second substrate or on a first surface of a third substrate, the diaphragm stop between the second and third substrates; a convex L3 lens element on a second surface of the third substrate spaced from the image sensor; a first spacer holding first substrate at a predetermined distance from the second substrate; and a second spacer holding the second substrate a predetermined distance from the image sensor. In embodiments, lens element L1 has concave aspheric radius of R1, and lens L2 convex aspheric radius of R2, such that 1.3

    OPTICAL FINGERPRINT SENSOR WITH SPOOF DETECTION AND ASSOCIATED METHOD

    公开(公告)号:US20230072103A1

    公开(公告)日:2023-03-09

    申请号:US17469461

    申请日:2021-09-08

    Abstract: An optical fingerprint sensor with spoof detection includes a plurality of lenses, an image sensor including a pixel array that includes a plurality of first photodiodes and a plurality of second photodiodes, and at least one apertured baffle-layer having a plurality of aperture stops, wherein each second photodiode is configured to detect light having passed through a lens and at least one aperture stop not aligned with the lens along an optical axis. A method for detecting spoof fingerprints detected using an optical fingerprint sensor includes detecting large-angle light incident on a plurality of anti-spoof photodiodes, wherein the plurality of anti-spoof photodiodes is interleaved with a plurality of imaging photodiodes, determining an angular distribution of light based at least in part one the large-angle light, and detecting spoof fingerprints based at least in part on the angular distribution of light.

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