Fingerprint image capturing device and fingerprint image capturing module thereof

A fingerprint image and capture module technology, which is applied in the acquisition/organization of fingerprints/palmprints, image communication, print image capture, etc.

Inactive Publication Date: 2017-05-10
PACING TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The embodiment of the present invention is to provide a fingerprint image capture device and its fingerprint image capture module, which can at least solve the deficiency of "the existing optical fingerprint recognition devices generally have a large size and cannot meet the thinning requirements".

Method used

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  • Fingerprint image capturing device and fingerprint image capturing module thereof
  • Fingerprint image capturing device and fingerprint image capturing module thereof
  • Fingerprint image capturing device and fingerprint image capturing module thereof

Examples

Experimental program
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Effect test

no. 1 example 〕

[0049] see Figure 1 to Figure 3 shown, where figure 2 for figure 1 A schematic cross-sectional view of the A-A secant line, image 3 for figure 1 Schematic cross-sectional view of the B-B section line. As can be seen from the above figures, the first embodiment of the present invention provides a fingerprint image capture device S, which includes: a circuit substrate 1, an outer shell 2, a light-transmitting element 3 and a fingerprint image capture module G, wherein The fingerprint image capture module G is arranged in the outer casing 2, and the fingerprint image capture module G includes at least one light-emitting element 4 (the accompanying drawings of the present invention use at least two light-emitting elements 4 as an example for illustration, but this is not the case. limited), a first optical element 6 , a second optical element 7 , a lens assembly 8 and a fingerprint image sensing element 9 .

[0050] First, cooperate figure 1 and image 3As shown, the out...

no. 2 example

[0059] see Figure 4 to Figure 5 As shown, the second embodiment of the present invention provides a fingerprint image capture module G, which includes: at least one light-emitting element 4 (the accompanying drawings of the present invention use at least two light-emitting elements 4 as examples for illustration, but do not use This is limited), a first optical element 6 , a second optical element 7 , a lens assembly 8 and a fingerprint image sensing element 9 .

[0060] Furthermore, the first optical element 6 is disposed on one side of at least one light-emitting element 4 and a first predetermined distance away from at least one light-emitting element 4, and the first optical element 6 has two reflective structures 61 and a connection The light guiding structure 62 between the two light reflecting structures 61 . Each reflective structure 61 has a reflective curved surface 610, and the light guide structure 62 has a first platform 621 facing the light-transmitting element...

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PUM

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Abstract

The invention discloses a fingerprint image capturing device and a fingerprint image capturing module thereof. The fingerprint image capturing module includes at least one light-emitting element, a first optical element having two light-reflecting structures and a light-guiding structure, a second optical element, a lens assembly, and a fingerprint image sensing element, and is characterized in that a projection light beam generated by the light-emitting element is projected onto the light-reflecting structure, the projection light beam is reflected by the light-reflecting structure to form an illumination light beam that passes through a light-transmitting element and is projected onto a fingerprint, the illumination light beam is reflected by the finger to form an image light beam that is projected onto the light-guiding structure and guided by the light-guiding structure, the image light beam passes through the lens assembly and is projected onto the fingerprint image sensing element through the second optical element, and the fingerprint image sensing element receives the image light beam to obtain a fingerprint image of the fingerprint. The fingerprint image capturing device and the fingerprint image capturing module can be miniaturized.

Description

technical field [0001] The present invention relates to a fingerprint image capture device and its fingerprint image capture module, in particular to a fingerprint image capture device and its fingerprint image capture module that can meet the thinning requirement. Background technique [0002] Generally speaking, the usual way for a fingerprint identification device to read a fingerprint is to read the fingerprint with a fixed finger. For example, a pressing plate can be used for finger contact, and multiple light-emitting elements can be used to provide the light source required for “when the lens is to capture the fingerprint image of the finger that has touched the pressing plate”. In order to meet the principle of total reflection, this kind of fingerprint identification device must have a specific angle between the lens, finger and light source, so as to capture obvious and clear fingerprint images, so the existing optical fingerprint identification device There are g...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00
CPCG06V40/1318G06V40/1324H04N23/56
Inventor 曾吉旺
Owner PACING TECH
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