Optical fingerprint identification module

A fingerprint recognition module, optical technology, applied in character and pattern recognition, instruments, computing, etc., can solve the problems of high cost setting, difficult development, competitive advantage, and large space occupation

Inactive Publication Date: 2022-01-04
PRIMAX ELECTRONICS LTD
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if its technology has other deficiencies other than high-cost setup or large space occupation, such as the most important image acquisition effect, it will be difficult for it to develop in the market and gain a competitive advantage

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Optical fingerprint identification module
  • Optical fingerprint identification module
  • Optical fingerprint identification module

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0035] The following is a detailed description of the embodiments, which are only used as examples for illustration and will not limit the scope of protection of the present invention. In addition, the drawings in the embodiments omit elements that are not necessary or can be completed with common technology, so as to clearly show the technical characteristics of the present invention.

[0036] The implementation description of the present invention is now carried out with a first embodiment. See figure 2 , which is a schematic cross-sectional view of an optical fingerprint recognition module 2 proposed in the first embodiment. like figure 2 As shown, the optical fingerprint identification module 2 includes a housing 20, an image acquisition component 22, a light guiding diffusion layer 25, a light concentrating reflection layer 28, a pressing plate 21, two light sources 241, 242, and an optical channel structure 27 and a bottom reflector 26 . In the first embodiment, th...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
refractive indexaaaaaaaaaa
Login to view more

Abstract

The present invention is an optical fingerprint identification module, which includes: a housing, an image acquisition component, a light-guiding diffusion layer, a light-condensing reflection layer, a pressing plate, at least one light source and an optical channel structure. The light channel structure is formed under the pressing plate and above the image acquisition component, and passes through the light-condensing reflective layer and part of the light-guiding and diffusing layer to be covered by the light-condensing and reflecting layer and part of the light-guiding and diffusing layer surround. Wherein, the light emitted by the at least one light source can be conducted and diffused in the light-guiding diffusion layer, and can be concentrated and reflected in the light-gathering reflective layer, and the light emitted by the at least one light source can be formed in the The light guiding and diffusing layer goes back and forth between the light concentrating and reflecting layer, and then irradiates the pressing plate through the light channel structure, and then reflects to the image capturing component to be captured. The invention can increase the utilization rate of light more effectively.

Description

technical field [0001] The invention relates to the technical field of fingerprint identification, and in particular to an optical fingerprint identification module. The module utilizes multi-level diffusion and light concentrating design, which enables the light to produce repeated refraction, reflection, scattering and transmission, etc., so that the utilization rate of light can be increased more effectively. Background technique [0002] At present, in order to ensure information security, biometric technology has become a key development project in various industries. Among them, fingerprint recognition is the most common and widely used biometric technology. [0003] A fingerprint is a pattern made up of many curved lines. And when zoomed in, these lines show ups and downs like crests and troughs. Thus, the fingerprint feature is the distribution of these lines, and almost everyone has different fingerprint features, making their uniqueness a basis for identificatio...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Patents(China)
IPC IPC(8): G06K9/00
CPCG06V40/1324
Inventor 徐茂修丁冠堡
Owner PRIMAX ELECTRONICS LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap