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Image acquisition optical structure for biometric feature recognition, optical sensor, image acquisition method and electronic device

A biometric feature recognition and optical sensor technology, which is applied in printing image acquisition, character and pattern recognition, instruments, etc., can solve problems such as inability to adapt to biometric feature recognition, unclear imaging of biometric feature images, and inability to generate characteristic images. Achieve the effect of reducing the amount of data transmission, reducing the amount of data, and reducing the amount of data

Pending Publication Date: 2020-01-10
SHANGHAI FINGER TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the existing CMOS chip with Microlens array is directly used in the biometric identification device under the OLED screen, due to the inherent thickness of the OLED screen, the imaging of the biometric image by the CMOS is not clear, the characteristic image cannot be generated, and the biometric cannot be adapted. need to identify

Method used

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  • Image acquisition optical structure for biometric feature recognition, optical sensor, image acquisition method and electronic device
  • Image acquisition optical structure for biometric feature recognition, optical sensor, image acquisition method and electronic device
  • Image acquisition optical structure for biometric feature recognition, optical sensor, image acquisition method and electronic device

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Embodiment 1

[0042] Such as image 3 Shown is a cross-sectional schematic diagram of an image acquisition optical structure for biometric identification provided by the present invention.

[0043] On the one hand, this embodiment provides an image acquisition optical structure for biometric feature recognition. The image acquisition optical structure for biometric feature recognition captures optical image signals, converts the optical image signals into electrical signals, and transmits the electrical signals to the optical outside the structure. The image acquisition optical structure of the biometric feature recognition

[0044] In this embodiment, the image acquisition optical structure for biometric identification includes a Microlens area 400 and an optical sensor 800 with several pixel areas 810 located below the Microlens area 400, wherein the area of ​​one Microlens area 400 corresponds to 4 pixels The area of ​​the dot area, the arrangement of the pixel dot area 400 is 2*2.

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Embodiment 2

[0054] Such as Figure 7 Shown is a cross-sectional schematic diagram of an image acquisition optical structure for biometric identification provided by the present invention.

[0055] On the one hand, this embodiment provides an image acquisition optical structure for biometric feature recognition. The image acquisition optical structure for biometric feature recognition captures optical image signals, converts the optical image signals into electrical signals, and transmits the electrical signals to the optical outside the structure. The image acquisition optical structure of the biometric feature recognition

[0056] In this embodiment, the image acquisition optical structure for biometric identification includes a Microlens area 400 and an optical sensor 800 with several pixel areas 810 located below the Microlens area 400, wherein the area of ​​one Microlens area 400 corresponds to 9 pixels The area of ​​the dot area, the arrangement of the pixel dot area 400 is 3*3.

...

Embodiment 3

[0066] Such as Figure 10 Shown is a schematic diagram of a three-dimensional structure of an electronic device provided by the present invention.

[0067] On the one hand, this embodiment provides an electronic device, and the electronic device is a smart phone, a tablet computer, and other mobile terminals with a display screen or other terminal devices.

[0068] In this embodiment, a smart phone is taken as an example for illustration.

[0069] The electronic equipment of this embodiment includes a mobile phone display 200, a mobile phone button 210, and a mobile phone related sensor 220. The mobile phone display 200 is provided with a biometric sensing area 299, and an image acquisition device for biometric identification is installed under the biometric sensing area 299. module, the biometric image acquisition module includes the biometric image acquisition optical structure described in embodiment 1 or embodiment 2 and the biometric image acquisition circuit board 1010 ...

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Abstract

The invention discloses an image acquisition optical structure for biometric feature recognition, an optical sensor, an image acquisition method and an electronic device. The image acquisition opticalstructure comprises a plurality of Microlens regions and the optical sensor which is positioned below the Microlens regions and is provided with a plurality of pixel point regions, and in the plurality of Microlens regions and the plurality of pixel point regions, the area of one Microlens region corresponds to the area formed by combining more than two pixel point regions, and the Microlens region is coaxial with a photoelectric sensing region of one pixel point region right below the Microlens region. According to the invention, the optical semaphore of a single pixel point can be enhanced,and the data transmission quantity of an image can be reduced.

Description

technical field [0001] The invention belongs to the field of biological feature identification, and in particular relates to an image acquisition optical structure, an optical sensor, an image acquisition method and electronic equipment for biological feature identification. Background technique [0002] As people's requirements for camera pixels are getting higher and higher, the pixel size is getting smaller and smaller. In order to increase the light-sensing ability of small pixels, microlens arrays are commonly used in CMOS photosensitive chips. [0003] Microlens array module structure such as figure 1 with figure 2 , figure 1 with figure 2 Among them, each microlens (Mcirolens) 400 corresponds to a pixel point area 810, which utilizes the light-gathering effect of the microlens 400 to converge light onto the photoelectric sensing area of ​​the pixel point area 810 of the optical sensor 800, increasing the number of single pixel points The sensing capability of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00G06K9/20
CPCG06V40/1324G06V40/1318G06V10/143G06V10/147
Inventor 杨成龙姜洪霖黄昊
Owner SHANGHAI FINGER TECH CO LTD