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    Image sensor with shared microlens
    23.
    发明授权
    Image sensor with shared microlens 有权

    公开(公告)号：US11252381B2

    公开(公告)日：2022-02-15

    申请号：US16711237

    申请日：2019-12-11

    Applicant: OmniVision Technologies, Inc.

    Inventor： Chin Poh Pang ,  Guansong Liu ,  Xiaodong Yang ,  Boyang Zhang ,  Hongjun Li ,  Da Meng

    IPC: H04N5/335 ,  H04N9/04 ,  H04N5/378

    Abstract: An image sensor includes a plurality of photodiodes, a plurality of color filters, and a plurality of microlenses. The plurality of photodiodes are arranged as a photodiode array, each of the plurality of photodiodes disposed within respective portions of a semiconductor material with a first lateral area. The plurality of color filters are arranged as a color filter array optically aligned with the photodiode array. Each of the plurality of color filters having a second lateral area greater than the first lateral area. The plurality of microlenses are arranged as a microlens array optically aligned with the color filter array and the photodiode array. Each of the plurality of microlenses have a third later area greater than the first lateral area and less than the second lateral area.

    IMAGE SENSOR WITH SHARED MICROLENS AND POLARIZATION PIXEL
    24.
    发明申请
    IMAGE SENSOR WITH SHARED MICROLENS AND POLARIZATION PIXEL 有权

    公开(公告)号：US20210175270A1

    公开(公告)日：2021-06-10

    申请号：US16704877

    申请日：2019-12-05

    Applicant: OmniVision Technologies, Inc.

    Inventor： Chin Poh Pang ,  Boyang Zhang ,  Guansong Liu ,  Peng Lin

    IPC: H01L27/146 ,  H04N5/378 ,  H04N5/369

    Abstract: An image sensor pixel comprises a subpixel and a polarization pixel. The subpixel includes a group of photodiodes disposed in semiconductor material, a shared microlens optically aligned over the group of photodiodes, and a subpixel color filter disposed between the group of photodiodes and the shared microlens. The polarization pixel includes a first photodiode disposed in the semiconductor material, an unshared microlens optically aligned over the first photodiode, and a polarization filter disposed between the first photodiode and the unshared microlens. The shared microlens has a first lateral area. The unshared microlens has a second lateral area less than the first lateral area of the shared microlens.

    IMAGE SENSOR WITH SHARED MICROLENS BETWEEN MULTIPLE SUBPIXELS
    25.
    发明申请
    IMAGE SENSOR WITH SHARED MICROLENS BETWEEN MULTIPLE SUBPIXELS 有权

    公开(公告)号：US20210126033A1

    公开(公告)日：2021-04-29

    申请号：US16666129

    申请日：2019-10-28

    Applicant: OmniVision Technologies, Inc.

    Inventor： Xiaodong Yang ,  Guansong Liu ,  Peng Lin ,  Chin Poh Pang ,  Da Meng

    IPC: H01L27/146 ,  H04N9/04 ,  H04N5/232

    Abstract: An image sensor pixel includes a plurality of photodiodes, a shared microlens, and a plurality of microlenses. The plurality of photodiodes are arranged as a photodiode array with each of the plurality of photodiodes disposed within a semiconductor material. The shared microlens is optically aligned with a group of neighboring photodiodes included in the plurality of photodiodes. Each of the plurality of microlenses are optically aligned with an individual one of the plurality of photodiodes other than the group of neighboring photodiodes. The plurality of microlenses laterally surrounds the shared microlens.

    Image Sensor With Symmetric Multi-Pixel Phase-Difference Detectors, And Associated Methods
    27.
    发明申请
    Image Sensor With Symmetric Multi-Pixel Phase-Difference Detectors, And Associated Methods 有权
    具有对称多像素相位差检测器的图像传感器及相关方法

    公开(公告)号：US20170041525A1

    公开(公告)日：2017-02-09

    申请号：US14819021

    申请日：2015-08-05

    Applicant: OmniVision Technologies, Inc.

    Inventor： Guansong Liu ,  Jizhang Shan ,  Chin Poh Pang ,  Xiaodong Yang

    IPC: H04N5/232 ,  G02B7/36 ,  G02B5/20 ,  G03B13/36

    CPC classification number: H04N5/23212 ,  G02B5/201 ,  G02B7/36 ,  G03B13/36 ,  H04N9/045

    Abstract: An imaging system with on-chip phase-detection includes an image sensor with symmetric multi-pixel phase-difference detectors. Each symmetric multi-pixel phase-difference detector includes (a) a plurality of pixels forming an array and each having a respective color filter thereon, each color filter having a transmission spectrum and (b) a microlens at least partially above each of the plurality of pixels and having an optical axis intersecting the array. The array, by virtue of each transmission spectrum, has reflection symmetry with respect to both (a) a first plane that includes the optical axis and (b) a second plane that is orthogonal to the first plane. The imaging system includes a phase-detection row pair, which includes a plurality of symmetric multi-pixel phase-difference detectors in a pair of adjacent pixel rows and a pair, and an analogous phase-detection column pair.

    Abstract translation: 具有片上相位检测的成像系统包括具有对称多像素相位差检测器的图像传感器。 每个对称多像素相位差检测器包括（a）形成阵列的多个像素，每个具有各自的滤色器，每个滤色器具有透射光谱，和（b）至少部分地高于每个多个像素的微透镜 的像素并且具有与阵列相交的光轴。 该阵列凭借每个透射光谱具有相对于（a）包括光轴的第一平面和（b）与第一平面正交的第二平面的反射对称性。 成像系统包括相位检测行对，其包括一对相邻像素行和一对中的多个对称多像素相位差检测器，以及类似的相位检测列对。

    Image Sensors for Robust On Chip Phase Detection, and Associated System And Methods
    28.
    发明申请
    Image Sensors for Robust On Chip Phase Detection, and Associated System And Methods 有权
    用于强大片上相位检测的图像传感器，以及相关系统和方法

    公开(公告)号：US20160344961A1

    公开(公告)日：2016-11-24

    申请号：US14714997

    申请日：2015-05-18

    Applicant: OmniVision Technologies,Inc.

    Inventor： Chengjun Li ,  Guansong Liu ,  Jizhang Shan ,  Chin Poh Pang

    IPC: H04N5/369 ,  H04N9/04 ,  H04N5/232

    CPC classification number: H04N5/3696 ,  H04N5/23212 ,  H04N9/045

    Abstract: An image sensor for on-chip phase detection includes a pixel array for capturing an image of a scene, wherein the pixel array has a plurality of horizontal phase-detection rows, each including phase-detection pixels for detecting horizontal change in the scene, and a plurality of vertical phase-detection columns, each including phase-detection pixels for detecting vertical change in the scene, and wherein each of the horizontal phase-detection rows intersects each of the vertical phase-detection columns. A phase-detection method includes generating a pair of horizontal line profiles using one of a plurality of phase-detection rows; generating a pair of vertical line profiles using one of a plurality of phase-detection columns intersecting with the one of a plurality of phase-detection rows; and determining phase shift associated with at least one arbitrarily oriented edge in a scene, based upon the pair of horizontal line profiles and the pair of vertical line profiles.

    Abstract translation: 一种用于片上相位检测的图像传感器包括用于捕获场景图像的像素阵列，其中，像素阵列具有多个水平相位检测行，每个水平相位检测行包括用于检测场景中的水平变化的相位检测像素，以及 多个垂直相位检测列，每个垂直相位检测列包括用于检测场景中的垂直变化的相位检测像素，并且其中每个水平相位检测行与每个垂直相位检测列相交。 相位检测方法包括使用多个相位检测行中的一个生成一对水平线轮廓; 使用与多个相位检测行中的一个相交叉的多个相位检测列中的一个生成一对垂直线轮廓; 以及基于所述一对水平线轮廓和所述一对垂直线轮廓来确定与场景中的至少一个任意取向的边缘相关联的相移。

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