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An imaging system, and a pixel array and an image sensor of the imaging system

A technology of pixel array and imaging system, applied in the field of image sensor and imaging system, can solve the problems of increasing system power consumption, high transmission power, human eye damage, etc.

Active Publication Date: 2019-07-16
SHENZHEN GOODIX TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, because the emission power of the uniform surface light source is too high, it not only increases the power consumption of the system, but also easily causes damage to human eyes when it is applied to face recognition

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  • An imaging system, and a pixel array and an image sensor of the imaging system
  • An imaging system, and a pixel array and an image sensor of the imaging system
  • An imaging system, and a pixel array and an image sensor of the imaging system

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Embodiment Construction

[0064] Certain terms are used in the specification and preceding claims to refer to particular components. Those skilled in the art should understand that manufacturers may use different terms to refer to the same component. This description and the previous claims do not use the difference in name as the way to distinguish components, but the difference in function of the components as the basis for distinction. The "comprising" mentioned throughout the specification and the preceding claims is an open-ended term, so it should be interpreted as "including but not limited to". Furthermore, the term "coupled" herein includes any direct and indirect means of electrical connection. Therefore, if it is described in the text that a first device is coupled to a second device, it means that the first device may be directly electrically connected to the second device, or indirectly electrically connected to the second device through other devices or connection means. Two devices.

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Abstract

The invention provides an imaging system, a pixel array and an image sensor. The pixel array includes a plurality of pixels to sense reflection signals incident to the pixel array to form a pluralityof reflection light points separated from each other on the pixel array. Each pixel includes a photodetector and a reading circuit. The photodetector is used for detecting the reflection signal and correspondingly outputting a light response signal. The reading circuit generates pixel output according to the light response signal. The plurality of pixels includes a first pixel and a second pixel adjacent to the first pixel in a first predetermined direction. The reading circuit of the first pixel is adjacent to the photodetector of the second pixel in the first predetermined direction and adjacent to the photodetector of the first pixel in a second predetermined direction perpendicular to the first predetermined direction. The pixel array has the effects of small pixel pitch and high filling factor.

Description

technical field [0001] The present disclosure relates to imaging technology, and in particular to a pixel array applicable to time-of-flight imaging technology, and related image sensors and imaging systems. Background technique [0002] Time of flight (TOF) ranging technology calculates the flight time of the optical signal from the transmitting end to the receiving end by continuously sending the optical signal from the transmitting end to the target and receiving the optical signal returned from the target at the receiving end. Get the distance between the target and the transmitter / receiver. In order to improve the resolution and collect the depth information of the long-distance target, the time-of-flight ranging technology uses a uniform surface light source as the light source, so that each pixel in the pixel array can receive the light signal returned from the target. However, because the emission power of the uniform surface light source is too high, it not only in...

Claims

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Application Information

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IPC IPC(8): H04N5/369H04N5/378
CPCH04N25/70H04N25/78G01S17/894H01L27/14672H01L27/14609H01L27/14643G01S7/4863G01S7/4914H04N25/77H04N25/40H04N3/155G01T1/2018G01T1/2928H04N5/32G01T1/2971H04N25/75
Inventor 杨孟达
Owner SHENZHEN GOODIX TECH CO LTD
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