公开(公告)号：US20210185286A1

公开(公告)日：2021-06-17

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: 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.

公开(公告)号：US09485442B1

公开(公告)日：2016-11-01

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 ,  H04N5/232 ,  H04N9/04

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。

公开(公告)号：US20160234467A1

公开(公告)日：2016-08-11

申请号：US15098151

申请日：2016-04-13

Applicant: OMNIVISION TECHNOLOGIES, INC.

Inventor： Raymond Wu ,  Jizhang Shan ,  Chin Poh Pang

IPC: H04N9/04 ,  H04N5/378 ,  G06T3/40

CPC classification number: H04N9/045 ,  G06T3/4015 ,  H04N5/3696 ,  H04N5/378 ,  H04N2209/047

Abstract: Implementations of a color filter array comprising a plurality of tiled minimal repeating units. Each minimal repeating unit includes at least a first set of filters comprising three or more color filters, the first set including at least one color filter with a first spectral photoresponse, at least one color filter with a second spectral photoresponse, and at least one color filter with a third spectral photoresponse; and a second set of filters comprising one or more broadband filters positioned among the color filters of the first set, wherein each of the one or more broadband filters has a fourth spectral photoresponse with a broader spectrum than any of the first, second, and third spectral photoresponses, and wherein the individual filters of the second set have a smaller area than any of the individual filters in the first set. Other implementations are disclosed and claimed.

Abstract translation: 包括多个平铺的最小重复单元的滤色器阵列的实现。 每个最小重复单元至少包括包含三个或更多个滤色器的第一组滤光器，第一组包括具有第一光谱光响应的至少一个滤色器，至少一个具有第二光谱光响应的滤色器，以及至少一种颜色 滤光片与第三光谱光响应; 以及第二组滤波器，包括位于所述第一组滤色器之间的一个或多个宽带滤光器，其中所述一个或多个宽带滤光器中的每一个具有比所述第一，第二和第三滤色器中的任一个宽的光谱的第四光谱光响应 光谱光响应，并且其中第二组的各个滤波器具有比第一组中的任何一个滤波器小的面积。 公开并要求保护其他实施方式。

公开(公告)号：US09369681B1

公开(公告)日：2016-06-14

申请号：US14553738

申请日：2014-11-25

Applicant: OMNIVISION TECHNOLOGIES, INC.

Inventor： Raymond Wu ,  Jizhang Shan ,  Chin Poh Pang

IPC: H04N3/14 ,  H04N5/335 ,  H04N9/04

CPC classification number: H04N9/045 ,  G06T3/4015 ,  H04N5/3696 ,  H04N5/378 ,  H04N2209/047

Abstract: Implementations of a color filter array comprising a plurality of tiled minimal repeating units. Each minimal repeating unit includes at least a first set of filters comprising three or more color filters, the first set including at least one color filter with a first spectral photoresponse, at least one color filter with a second spectral photoresponse, and at least one color filter with a third spectral photoresponse; and a second set of filters comprising one or more broadband filters positioned among the color filters of the first set, wherein each of the one or more broadband filters has a fourth spectral photoresponse with a broader spectrum than any of the first, second, and third spectral photoresponses, and wherein the individual filters of the second set have a smaller area than any of the individual filters in the first set. Other implementations are disclosed and claimed.

公开(公告)号：US09154750B2

公开(公告)日：2015-10-06

申请号：US13903714

申请日：2013-05-28

Applicant: OMNIVISION TECHNOLOGIES, INC.

Inventor： Chin Poh Pang

IPC: H04N9/04 ,  H04N5/365

CPC classification number: H04N9/045 ,  H04N5/365

Abstract: Embodiments of an apparatus including a pixel array and a color filter array optically coupled to the pixel array, the color filter array including a plurality of tiled minimal repeating units. Processing circuitry is coupled to the pixel array to correct fixed pattern noise (FPN) in an image captured by the pixel array. The processing circuitry corrects the values of pixels that are part of a correction group, and wherein the corrections comprise a combination of a color ratio correction that is based on the ratios of selected colors within the minimal repeating unit, and one or more crosstalk corrections that are based on a chief ray angle (CRA) correction and the color ratio correction.

Abstract translation: 包括与像素阵列光学耦合的像素阵列和滤色器阵列的装置的实施例，滤色器阵列包括多个平铺的最小重复单元。 处理电路耦合到像素阵列以校正由像素阵列捕获的图像中的固定图案噪声（FPN）。 处理电路校正作为校正组的一部分的像素的值，并且其中校正包括基于最小重复单元内的所选颜色的比率的色彩比率校正的组合，以及一个或多个串扰校正， 基于主射线角度（CRA）校正和颜色比校正。

公开(公告)号：US12148777B2

公开(公告)日：2024-11-19

申请号：US17322399

申请日：2021-05-17

Applicant: OmniVision Technologies, Inc.

Inventor： Qin Wang ,  Chin Poh Pang

IPC: H01L27/146 ,  G02B5/00 ,  G02B5/20

Abstract: A crosstalk-suppressing image sensor includes a semiconductor substrate, an opaque layer, and a spectral filter. The semiconductor substrate includes a photodiode therein and is located beneath a light-exposure region of a back surface of the semiconductor substrate. The opaque layer is on the back surface, partially covers the light-exposure region, and has an opaque-layer thickness perpendicular to an image-plane direction parallel to the back surface. The spectral filter is adjacent to the opaque layer in the image-plane direction, and partially covers the light-exposure region.

公开(公告)号：US11323608B2

公开(公告)日：2022-05-03

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：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.

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.

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.