Biometric authentication apparatus

A technology of biometric authentication and wavelength range, which is applied in the field of biometric authentication devices and can solve problems such as the deterioration of authentication accuracy
CN101953689AInactive Publication Date: 2011-01-26SONY CORP
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
SONY CORP
Publication Date
2011-01-26
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The present invention provides a biometric authentication apparatus realizing reduction in thickness while holding high authentication precision. The biometric authentication apparatus includes: a light source emitting light in a wavelength range including a wavelength range for authentication toward a living body; a microlens array condensing light from the living body and selectively transmitting light in the wavelength range for authentication; an imaging device obtaining image data of the living body on the basis of the light condensed by the microlens array; and an authentication unit authenticating the living body on the basis of the image data obtained by the imaging device. The microlens array includes: a first resin layer made of thermoplastic transparent resin material as a base material of the microlens array; and an opaque material included in the first resin layer and used for blocking the light with the wavelength range different from that for authentication.
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Description

technical field

[0001] The present invention relates to a biometric authentication device for authenticating a living body based on data obtained by imaging a structure in a biological part such as a vein or a fingerprint. Background technique

[0002] In the related art, imaging devices for imaging structures in biological parts are used for biometric authentication devices and the like, and various authentication devices for authenticating living bodies using image data such as fingerprints or veins are proposed. Generally, in this biometric authentication device, since the imaging device itself is thick, in order to apply the device to a thin device, a method of arranging the imaging device outside the authentication device or an optical system of the imaging device independently of each other is mainly used. (imaging lens) and detection system (imaging device) method.

[0003] However, in recent years, as various devices have become thinner or due to manufacturability o...

Claims

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