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Biometric authentication device

一种验证系统、生物学的技术，应用在皮下生物特征、生物特征识别、光学等方向，能够解决高安全级、降低验证安全级别、指纹图样易被伪造等问题，达到实现安全级验证、高安全级验证的效果

Active Publication Date: 2010-02-17
SONY CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] On the other hand, in such an authentication system, a high security level is required
In authentication using fingerprints, the fingerprint pattern that has been authenticated is easily forged, so there is a risk of lowering the security level of authentication

Method used

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Embodiment Construction

[0038] Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0039] figure 1 The overall configuration of a biological authentication system (biological authentication system 1 ) according to an embodiment of the present invention is illustrated. figure 2 is a schematic diagram illustrating a brief configuration of the biological authentication system 1 . The biological authentication system 1 specifically picks up an image of a structure such as a vein in a living body (for example, a finger) 2 and then performs authentication, and includes a light source 10, a light guide section 11A, a diffractive section 11B, a microlens array 12, an image pickup device 13. Image processing part 14 , pattern storage part 15 , verification part 16 , voltage supply part 17 , light source driving part 181 , image pickup device driving part 182 and control part 19 . The upper surface of the light guide portion 11A is the detect...

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Abstract

A biometric authentication device that is thin and realizes authentication of a high security level. The biometric authentication device (1) has a light source (10), a light guide section (11A), a diffraction section (11B), a microlens array (12), an imaging element (13), an image processing section (14), a pattern holding section (15), an authentication section (16), a voltage supply section (17), a light source drive section (181), an imaging element drive section (182), and a control section (19). When light (L0) emitted from the light source (10) enters the diffraction section (11B) afterpropagating in the light guide section (11A) by total reflection, light (L1) diffracted to an angle different from the angle of the entry is produced. As a result, the light guide section (11A) functions as a surface area light source, and conditions for the total reflection in the light guide section (11A) become not satisfied. This causes the light (L1) to be guided to the outside of the light guide section (11A), which results in the inside of a living body (2) being sufficiently irradiated with light.

Description

technical field [0001] The present invention relates to a biological authentication system using a structure in a living body such as, for example, a vein of a finger as an object to be authenticated. This application contains subject matter related to Japanese Priority Patent Application JP 2007-098422 filed in the Japan Patent Office on Apr. 4, 2007, the entire content of which is hereby incorporated by reference. Background technique [0002] In the related art, an image pickup device that picks up an image of a structure in a part of a living body is used in a biological authentication system and the like, and for example, various fingerprint authentication systems that perform biological authentication by using a fingerprint of a finger have been proposed (See Patent Documents 1 to 3). In such a fingerprint authentication system, the thickness of the image pickup device is large, so the image pickup device is arranged outside the authentication system as described in P...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T1/00
CPCG02B6/0056A61B5/117G02B6/0055G06K9/00046G02B3/0006G06K2009/00932G06V40/1324G06V40/14
Inventor 山本健二市村功
Owner SONY CORP
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