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Fingerprint imaging modules and electronic equipment

A technology for imaging modules and electronic equipment, which is applied in the acquisition/organization of fingerprints/palmprints, print image acquisition, character and pattern recognition, etc., and can solve problems such as the appearance color and imaging effect need to be further improved.

Active Publication Date: 2020-10-27
SHANGHAI OXI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the appearance color and imaging effect of the colored fingerprint imaging module in the prior art need to be further improved.

Method used

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  • Fingerprint imaging modules and electronic equipment
  • Fingerprint imaging modules and electronic equipment
  • Fingerprint imaging modules and electronic equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0032] It can be seen from the background technology that the colored fingerprint imaging module in the prior art has the problem of poor imaging effect. Now combine the structure of the fingerprint imaging module to analyze the reasons for its poor imaging effect:

[0033] refer to figure 1 , shows a schematic cross-sectional structural view of an optical fingerprint imaging module.

[0034] The light emitted by the light source 12 passes through the light guide plate 13 to form incident light 14 . The incident light 14 is projected onto the surface of the finger 10 after passing through the image sensor 15 , and reflected by the finger 10 to form a reflected light 16 . The image sensor 15 receives the reflected light 16 and processes the reflected light 16 to obtain a fingerprint image of the finger.

[0035] In order to adapt the appearance color of the fingerprint imaging module to the appearance design of the device, in the prior art, a color layer 17 with a certain co...

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PUM

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Abstract

A fingerprint imaging module and electronic equipment. The fingerprint imaging module includes: a light source for generating incident light, and the light source includes a light-emitting surface; a light guide, located on the light-emitting surface of the light source, for transmitting incident light; a color A layer, located on the light source and the light guide, includes a light-transmitting area corresponding to the position of the light guide, and the light-transmitting area is used to transmit incident light transmitted through the light guide, and the incident light Reflected light is formed by reflection; an image sensor is located on the side of the light transmission area away from the light source, and is used to receive the reflected light to obtain a fingerprint image. The incident light projected to the light-transmitting region can be increased. Therefore, the setting of the light guide can increase the intensity of the incident light transmitted through the light-transmitting area and projected to the finger, thereby helping to improve the light intensity of the reflected light carrying fingerprint information formed by the reflection of the finger, and improving the intensity of the finger. Get the quality of the fingerprint image.

Description

technical field [0001] The invention relates to the field of fingerprint imaging, in particular to a fingerprint imaging module and electronic equipment. Background technique [0002] The fingerprint identification technology collects the fingerprint image of the human body through the fingerprint imaging module, and then compares it with the existing fingerprint imaging information in the fingerprint identification system to realize identity identification. Due to the convenience of use and the uniqueness of human fingerprints, fingerprint recognition technology has been widely used in various fields, such as: public security bureaus, customs and other security inspection fields, building access control systems, and consumer products such as personal computers and mobile phones, etc. [0003] One of the fingerprint imaging modules used in fingerprint identification technology collects fingerprint images of the human body through optical fingerprint imaging modules: the inci...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K9/00
CPCG06V40/1341G06V40/1324G06V40/13G06V40/1318
Inventor 朱虹凌严辛胜
Owner SHANGHAI OXI TECH