公开(公告)号：US20200045223A1

公开(公告)日：2020-02-06

申请号：US16597901

申请日：2019-10-10

Applicant: OmniVision Technologies, Inc.

Inventor： Chin Poh Pang ,  Chen-Wei Lu ,  Shao-Fan Kao ,  Chun-Yung Ai ,  Yin Qian ,  Dyson Tai ,  Qingwei Shan ,  Lindsay Grant

IPC: H04N5/232 ,  H01L27/146

Abstract: An image sensor pixel array comprises a plurality of image pixel units to gather image information and a plurality of phase detection auto-focus (PDAF) pixel units to gather phase information. Each of the PDAF pixel units includes two of first image sensor pixels covered by two micro-lenses, respectively. Each of the image pixel units includes four of second image sensor pixels adjacent to each other, wherein each of the second image sensor pixels is covered by an individual micro-lens. A coating layer is disposed on the micro-lenses and forms a flattened surface across the whole image sensor pixel array. A PDAF micro-lens is formed on the coating layer to cover the first image sensor pixels.

公开(公告)号：US20190394389A1

公开(公告)日：2019-12-26

申请号：US16017566

申请日：2018-06-25

Applicant: OmniVision Technologies, Inc.

Inventor： Chen-Wei Lu ,  Yin Qian ,  Dyson Tai ,  Chin Poh Pang ,  Boyang Zhang ,  Cheng Zhao

IPC: H04N5/232 ,  H04N5/341 ,  H01L27/146

Abstract: An image sensor pixel array comprises a plurality of image pixel units to gather image information and a plurality of phase detection auto-focus (PDAF) pixel units to gather phase information. Each of the PDAF pixel units includes two of first image sensor pixels covered by a shared micro-lens. Each of the image pixel units includes four of second image sensor pixels adjacent to each other, wherein each of the second image sensor pixels is covered by an individual micro-lens. A coating layer is disposed on the micro-lenses and forms a flattened surface across the whole image sensor pixel array to receive incident light.

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。

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。