Vein recognition device

A technology for vein recognition and accommodating chambers, applied in biometric recognition, character and pattern recognition, instruments, etc., can solve the problems of large volume and large thickness of vein recognition devices, and achieve small volume, shortened imaging distance, and thin thickness Effect

Pending Publication Date: 2020-06-09
INTERFACE TECH CHENGDU CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The distance between the barrel lens and the objective lens is usually set to 20-460 m

Method used

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  • Vein recognition device
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Examples

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Example Embodiment

[0033] The drawings show embodiments of the present invention. The present invention can be implemented in many different forms, and should not be interpreted as being limited to the embodiments set forth herein. On the contrary, these embodiments are provided to make the present invention more comprehensive and complete, and to enable those skilled in the art to fully understand the scope of the present invention. In order to be clearly visible, in the figure, the size of layers and regions have been enlarged.

[0034] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meanings as commonly understood by those of ordinary skill in the art described in the present invention. It should also be understood that terms such as those defined in general dictionaries should be interpreted as having meanings consistent with their meanings in the context of the relevant field, and should not be interpreted as excessively idealized or exc...

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Abstract

The invention discloses a vein recognition device, and the device comprises an image sensor which is provided with a photosensitive surface; a shading cover opposite to the image sensor and arranged at intervals, wherein the shading cover is made of light-proof materials, and a plurality of through holes are formed in the shading cover at intervals so that light can penetrate through the through holes to reach the light sensing face to be imaged. According to the embodiment of the invention, pinhole imaging is carried out by arranging a single-layer mask provided with the plurality of throughholes, so that the imaging distance is greatly shortened, and the vein recognition device has a thinner thickness.

Description

technical field [0001] The invention relates to a vein identification device. Background technique [0002] Finger vein recognition is based on the fact that the blood flowing in the human finger can absorb light of a specific wavelength, and using light of a specific wavelength to irradiate the finger can obtain a clear image of the finger vein. Because the finger vein is the information inside the living body, it is unique and irreproducible, and the finger vein authentication adopts the living body authentication technology, so the security is very high. In recent years, the security management of personal information has become particularly important, and the outstanding value of biometric technology has received due and widespread attention in the fields of banking, social security, and locks. Using this inherent scientific feature, the finger vein recognition technology can analyze and process the acquired images to obtain the biological characteristics of the finger ...

Claims

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Application Information

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IPC IPC(8): G06K9/00G06K9/20
CPCG06V40/10G06V40/14G06V10/145G06V10/147
Inventor 王世育
Owner INTERFACE TECH CHENGDU CO LTD
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