biometric device
A biological and biological technology, applied in character and pattern recognition, instruments, lenses, etc., can solve the problem of large size, achieve the effect of thinning and improving light incident efficiency
Active Publication Date: 2020-12-04
IND TECH RES INST
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Problems solved by technology
[0004] In view of the above problems, the present invention discloses a biometric identification device, which helps to solve the problem of excessive volume of existing biometric identification devices
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[0055] The detailed features and advantages of the present invention are described in detail below in the embodiments, the content of which is sufficient for any person familiar with the related art to understand the technical content of the present invention and implement it accordingly, and according to the contents disclosed in this specification, claims and accompanying drawings, The related objects and advantages of the present invention can be easily understood by anyone skilled in the related art. The following examples further illustrate the concept of the present invention in detail, but do not limit the scope of the present invention in any way.
[0056] Please also refer to figure 1 and figure 2 . figure 1 It is a three-dimensional schematic diagram of a biometric identification device according to an embodiment of the present invention. figure 2It is a schematic cut-away side view of a biometric identification device according to an embodiment of the present i...
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Abstract
The invention discloses a biometric identification device, which includes an illumination unit and an imaging module. The lighting unit is used to emit light to the living body, and the imaging module is arranged on one side of the lighting unit. The imaging module includes an incident light angle screening structure and a photosensitive layer. The light screening structure includes a microlens array, a refraction focusing layer and a light shielding layer. The refraction focusing layer is between the microlens array and the light shielding layer. The microlens array includes a plurality of microlens units, and the light shielding layer has a plurality of light passing parts. The photosensitive layer is used to receive the light reflected from the living body and has a plurality of photosensitive regions arranged at intervals. The light shielding layer is between the refraction focusing layer and the photosensitive layer. The photosensitive area corresponds to the light-transmitting part, and there is an angular screening distance between the light-shielding layer and the photosensitive layer.
Description
technical field [0001] The invention relates to a biometric identification device, in particular to a thinned biometric identification device. Background technique [0002] Biometrics (recognition) technology refers to the use of the physiological or behavioral characteristics of the human body to achieve the purpose of identification and authentication authorization. The physiological characteristics of the human body include fingerprints, palm prints, vein distribution, iris, retina and facial features. Nowadays, biometric technology has been applied in digital assistants, smart phones, notebook computers, financial cards, electronic wallets and customs clearance, etc., where there is a high demand for information privacy and personal safety. [0003] Generally speaking, widely used biometric technologies include fingerprint recognition and vein recognition. In order to focus the light reflected by fingers or veins onto the photoreceptor in existing fingerprint recognitio...
Claims
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IPC IPC(8): G06K9/00
CPCG06V40/1324G06V40/18G02B3/0037G02B5/005G06V40/1341G06V40/1318
Inventor林鼎晸徐煜灵吴耀庭陈品诚
OwnerIND TECH RES INST