Backlight plate, optical imaging device and identification equipment

An optical imaging and identity recognition technology, applied in the field of identity recognition, can solve the problems of low security, single function, easy to steal fingerprint information, etc., and achieve the effect of high security level and good security.

Inactive Publication Date: 2015-03-25
SHANGHAI OXI TECH
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

[0009] The problem solved by the present invention is that the existing fingerprint imaging system only collects fin

Method used

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  • Backlight plate, optical imaging device and identification equipment
  • Backlight plate, optical imaging device and identification equipment
  • Backlight plate, optical imaging device and identification equipment

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Experimental program
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Embodiment Construction

[0050] The existing fingerprint imaging system belongs to a kind of identification technology, which can only collect fingerprint images, and has a single function, but the fingerprint information is easy to be stolen, and the security is low.

[0051] Identification technology also includes venous blood vessel recognition technology, which is a method of quickly identifying and identifying people with biometric technology. It uses near-infrared auxiliary light to irradiate the collected blood vessel parts, collects blood vessel texture maps, and then compares them with the existing blood vessels in the system. There is an angiographic information for comparison to judge whether it is correct or not, and then realize the technology of identity recognition. Due to its difficulty in stealing and impossibility to be forged, as well as the uniqueness of blood vessel shape, vein blood vessel recognition technology has been applied in various fields. Such as advanced security, such ...

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Abstract

The invention provides a backlight plate, an optical imaging device and identification equipment. The backlight plate comprises a substrate and a light source which is arranged on the substrate and used for emitting emergent light, and the light source comprises a first light source which emits visible light and a second light source which emits near-infrared light. The emergent light emitted by the light source on the backlight plate can penetrate through an optical area array sensor and then penetrates through an imaging window protection layer, the emergent light penetrating through the imaging window protection layer can be reflected by a contact interface which is in contact with the imaging window protection layer, the reflected emergent light forms incident light which irradiates to the optical area array sensor, and the optical area array sensor performs photovoltaic conversion and signal processing to emitted light: when the emergent light is visible light, sampling of a fingerprint image is realized; when the emergent light is near-infrared light, collection of a vein image is realized. The backlight plate integrates the collection function of the fingerprint image and the collection function of the vein image, the security classification is high, and the safety is good.

Description

technical field [0001] The invention relates to the field of identification, in particular to a backlight plate, an optical imaging device and identification equipment. Background technique [0002] Fingerprint imaging recognition technology is to collect the fingerprint image of the human body through the fingerprint sensor, and then compare it with the existing fingerprint imaging information in the system to judge whether it is correct or not, and then realize the technology of identity recognition. [0003] Due to its ease of use and the uniqueness of human fingerprints, fingerprint recognition technology has been widely used in various fields. For example, security inspection areas such as public security bureaus and customs, building access control systems, and consumer products such as personal computers and mobile phones, etc. [0004] Fingerprint imaging technology is implemented in various ways such as optical imaging, capacitive imaging, and ultrasonic imaging. ...

Claims

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Application Information

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IPC IPC(8): G06K9/00G06K9/24
CPCG06V40/1324
Inventor 李康
Owner SHANGHAI OXI TECH
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