Fingerprint imaging system and method, fingerprint identification system, electronic apparatus

Abstract

The invention provides a fingerprint imaging system, a fingerprint imaging method, a fingerprint identification system and an electronic apparatus. The fingerprint imaging system includes an imaging window protective layer which is used for providing a contact surface of a human finger, a side light source which surrounds the imaging window protective layer and is used for emitting emergent light; the emergent light irradiates the contact surface and the human finger and then enters the imaging window protective layer, and then passes through the imaging window protective layer so as to form incident light, and an optical area array sensor which is located in a surface of the imaging window protective layer and is used for receiving the incident light, and obtaining fingerprint imaging information corresponding to the fingerprint of the human finger, wherein the surface of the imaging window protective layer is opposite to the contact surface. The fingerprint identification system and the electronic apparatus respectively comprise the fingerprint imaging system. The fingerprint imaging system, the fingerprint identification system and the electronic apparatus of the invention have the advantages of improved shock resistance and decreased size.

Description

technical field [0001] The invention relates to the field of fingerprint identification, in particular to a fingerprint imaging system and method for realizing fingerprint identification, a fingerprint identification system and electronic equipment. Background technique [0002] Fingerprint imaging recognition technology is a technology that collects the fingerprint image of the human body through the fingerprint sensor, and then compares it with the existing fingerprint imaging information in the system to judge whether it is correct or not, and then realizes the technology of identity recognition. [0003] Due to the convenience of use and the uniqueness of human fingerprints, fingerprint imaging recognition technology has been widely used in various fields. For example, security inspection fields such as public security bureaus and customs, building access control systems, and consumer goods fields such as personal computers and mobile phones, etc. [0004] The realizati...

AI Technical Summary

Problems solved by technology

[0011] However, figure 1 In the shown optical fingerprint imaging system, in order to obtain a clear fingerprint image, it is necessary to strictly control the relative positions of the optical focusing lens 15, the optical area array sensor assembly 14 and the identification window glass 13, so that the optical area array sensor assembly 14 The collected image is the image formed by the contact surface of the human body finger 13 and the identification window glass 12, and the external shocks can easily change the optical focusing lens 15 (for example: external shocks make the optical focusing lens 15 move to the dotted line position), optical The relative position between the area array sensor assembly 14 and the identification window glass 3 has a greater impact on the entire fingerprint imaging system

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