CN107590415A - Fingerprint identification device - Google Patents
Fingerprint identification device Download PDFInfo
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- CN107590415A CN107590415A CN201610521546.0A CN201610521546A CN107590415A CN 107590415 A CN107590415 A CN 107590415A CN 201610521546 A CN201610521546 A CN 201610521546A CN 107590415 A CN107590415 A CN 107590415A
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- Prior art keywords
- fingerprint
- light source
- identification device
- fingerprint identification
- tough portion
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Abstract
The invention discloses a kind of fingerprint identification device, including fingerprint tough portion and light source and imaging sensor, described image sensor has multiple, multiple described image sensor matrix arrangements are made up of in the lower end in the fingerprint tough portion, the light source the multiple LED or multiple OLED of the edge setting along the fingerprint tough portion；The inside of the fingerprint identification device is provided with control device, and the control device includes contact induction device, light source control portion and the light source drive part being sequentially connected.The use of eyeglass present invention, avoiding prism, fingerprint surface directly is irradiated using the light source to obtain fingermark image, so as to simplify the structure of fingerprint identification device so that the thickness of fingerprint identification device is thinner, and application is more extensive.
Description
Technical field
The present invention relates to technical field of electronic products, more particularly to a kind of fingerprint identification device.
Background technology
With the continuous development of scientific technology, the identification of personal identification is also more important, recently, it is necessary to the field of personal authentication
More and more, such as access and exit control, e-commerce transaction, financial transaction, smart mobile phone security personnel etc. are closed, therefore, utilize personal letter
Cease to carry out the authentication device of person identification, it is extensive using in various fields.
It is well known that personal information includes used in personal authentication in order to realize：Fingerprint, iris, retina, palm,
Passages through which vital energy circulates pulse, face etc., and finger print information has uniqueness and consistency, conveniently can widely be made with being accurately identified
With.
Fig. 1 is the schematic diagram of the existing optical fingerprint sensor that fingerprint recognition is realized using prism.
With reference to figure 1, the light that the light source 102 being made up of LED is emitted can be irradiated to the side of prism 106 by light diffusing sheet 104
Face, the surface of finger 108 of contact surface is radiated at after the transmission of the side of prism 106, is re-reflected into other sides of prism 106.
By that analogy, fingerprint signal is sent to by imaging sensor 112 by the reflection light of the contact surface of prism 106.
But existing optical fingerprint sensor is as prism and eyeglass, is all to use optical configuration thing, its structure
Complexity, not only thickness is big, also with manufacturing cost it is high the problem of.
In addition, formation pair between the light source of existing optical fingerprint sensor, finger print contact surface and imaging sensor
Linea angulata, therefore, influenceed that light distorted deformation can be caused by environmental factors such as temperature, so that under the precision of fingerprint recognition
Drop.
The content of the invention
In view of this, the present invention provides a kind of fingerprint identification device, and light is shone directly into fingerprint surface obtains fingerprint
Image, be not required to use prism and eyeglass so that the identification of fingerprint is more accurate.
The present invention is solved the above problems by following technological means：
The fingerprint identification device of the present invention, it is characterised in that：Including fingerprint tough portion and light source and imaging sensor, described image
Sensor has multiple, and multiple described image sensor matrix arrangements are in the lower end in the fingerprint tough portion, and the light source is by along institute
State multiple LED or multiple OLED compositions that the edge in fingerprint tough portion is set；
The inside of the fingerprint identification device is provided with control device, contact induction device that the control device includes being sequentially connected,
Light source control portion and light source drive part.
The fingerprint identification device of the present invention, it is characterised in that：Including set gradually from top to bottom fingerprint tough portion, light source
And imaging sensor, the light source is by being arranged on multiple LED or multiple of the matrix arrangement of the bottom surface in the fingerprint tough portion
OLED is formed；
The inside of the fingerprint identification device is provided with control device, contact induction device that the control device includes being sequentially connected,
Light source control portion and light source drive part.
Further, the fingerprint tough portion is made up of resin material, plastic material or glass tube material.
Further, multiple LED or multiple OLED are uniformly arranged.
Further, multiple LED or multiple OLED are made up of transparent material.
Further, the spacing between the fingerprint tough portion and described image sensor is more than the thickness of the light source.
Further, the contact induction device is provided with multiple, and multiple contact induction device homogeneous matrix are arranged on the finger
The inner side of line contact site.
Further, multiple LED of the light source or multiple OLED independent controls.
The fingerprint identification device of the present invention, it is described to connect when the fingerprint is individual to be contacted with the fingerprint tough portion
Touch inductor to be used to perceive activation signal, and the activation signal is sent to light source control portion, the light source control portion connects
After receiving the activation signal sent from the contact induction device, driving instruction is sent to the light source drive part, and by the light
Source drive division drives the light source luminescent, the table of the fingerprint individual contacted in the light irradiation fingerprint tough portion of the light source
Face, illuminates the contact surface of fingerprint individual, the individual image of of fingerprint of formation itself, described in described image sensor obtains
The optical finger print image of fingerprint individual, and be converted electronic fingerprint signal and transmitted, the contact induction device perceives institute
When stating fingerprint individual releasing contact, the light source control portion sends out code to the light source drive part, is driven by the light source
Dynamic portion closes the light source.Therefore, the described fingerprint identification device of this implementation, its light source applied is connect in the fingerprint individual
Touch and just keep luminance in the state of the fingerprint tough portion, in the fingerprint individual not in contact with to the fingerprint tough portion
Light-off state is kept during state, there is good energy-saving effect；Moreover, the use of eyeglass present invention, avoiding prism, directly
Fingerprint surface is irradiated using the light source to obtain fingermark image, so as to simplify the structure of fingerprint identification device so that fingerprint
The thickness of identification device is thinner, and application is more extensive.
Brief description of the drawings
Fig. 1 is the schematic diagram of the existing optical fingerprint sensor that fingerprint recognition is realized using prism；
Fig. 2 is the structural representation of the fingerprint identification device of the embodiment of the present invention one；
Fig. 3 is Fig. 1 A-A sectional views；
Fig. 4 is the theory diagram of the control device of the fingerprint identification device of the embodiment of the present invention one；
Fig. 5 is the structural representation of the fingerprint identification device of the embodiment of the present invention two；
Fig. 6 is Fig. 5 B-B sectional views；
Fig. 7 is the structural representation of the fingerprint identification device of a variant embodiment of the embodiment of the present invention two；
Fig. 8 is the structural representation of the fingerprint identification device of another variant embodiment of the embodiment of the present invention two；
Fig. 9 is the theory diagram of the control device of the fingerprint identification device of the embodiment of the present invention two.
Such as Fig. 2 to Fig. 4, fingerprint identification device -200, fingerprint tough portion -202, light source -204, imaging sensor -206, connect
Touch inductor -402, light source control portion -404, light source drive part -406；
Such as Fig. 5, Fig. 6, Fig. 9, fingerprint identification device -500, fingerprint tough portion -502, light source -504, imaging sensor -506, connect
Touch field -508, contact induction device -902, light source control portion -904, light source drive part -906.
Such as Fig. 7, fingerprint tough portion -702, contact field -704, group -706；
Such as Fig. 8, fingerprint tough portion -802, contact field -804, the first group -806a, the second group -806b.
Embodiment
Embodiment one
With reference to figure 2, Fig. 3, the fingerprint identification device 200 described in the present embodiment is to be used to carry out personal authentication（Certification in person）Letter
The fingerprint device of breath, such as office machine（Such as；Computer, server etc.）, household appliances（Such as；TV, TV remote control, micro-wave oven,
Washing machine etc.）, door lock assembly, portable（Such as；Smart mobile phone, mobile phone, tablet personal computer, notebook computer etc.）Deng.The finger
Line identification device 200, which includes fingerprint tough portion 202 and light source 204 and imaging sensor 206, described image sensor 206, to be had more
Individual, multiple matrix arrangements of described image sensor 206 are in the lower end in the fingerprint tough portion 202, and the light source 204 is by along described
The multiple LED or multiple OLED compositions that the edge in fingerprint tough portion 202 is set；
The inside of the fingerprint identification device 200 is provided with control device, as shown in figure 4, being the fingerprint recognition described in the present embodiment
The theory diagram of the control device of device, the control device include contact induction device 402, the light source control portion being sequentially connected
404 and light source drive part 406.
The described fingerprint identification device of this implementation, when the fingerprint is individual to be contacted with the fingerprint tough portion 202,
The contact induction device 402 is used to perceive activation signal, and the activation signal is sent into light source control portion 404, described
After light source control portion 404 receives the activation signal sent from the contact induction device 402, sent out to the light source drive part 406
Driving instruction is sent, and drives the light source 204 to light by the light source drive part 406, the light irradiation fingerprint of the light source 204 connects
The surface of the fingerprint individual contacted in contact portion 202, the contact surface of the fingerprint individual is illuminated, the fingerprint individual of formation is originally
The image of body, described image sensor 206 obtain the optical finger print image of the fingerprint individual, and are converted electronic fingerprint letter
Number transmitted, when the contact induction device 402 perceives the fingerprint individual and releases contact, the light source control portion 404 to
The light source drive part 406 sends out code, and the light source 204 is closed by the light source drive part 406.Therefore, this implementation
Described fingerprint identification device, its light source 204 applied are the states that the fingerprint tough portion 202 is contacted in fingerprint individual
It is lower just to keep luminance, light-off state is kept when the fingerprint individual is not in contact with state to the fingerprint tough portion 202,
With good energy-saving effect.
The fingerprint tough portion 202 is made up of resin material, plastic material or glass tube material.
Multiple LED or multiple OLED are uniformly arranged.
Spacing between the fingerprint tough portion 202 and described image sensor 206 is more than the thickness of the light source 204,
So that the spacing reduces as far as possible, so as to improve the precision of the optical finger print image of described image sensor acquisition.
The contact induction device 402 be provided with it is multiple, multiple homogeneous matrix of contact induction device 402 are arranged on the fingerprint
The inner side of contact site 202.
Embodiment two
Fig. 5 is the structural representation of the fingerprint identification device for the example two that the present invention is implemented, and Fig. 6 is Fig. 5 B-B sectional views.
As shown in Figure 5, Figure 6, the fingerprint identification device 500 described in the present embodiment is to be used to accommodate personal authentication（I recognizes
Card）Information fingerprint device, such as office machine（Such as；Computer, server etc.）, household appliances（Such as；TV, TV remote control,
Micro-wave oven, washing machine etc.）, door lock assembly, portable（Such as；Smart mobile phone, mobile phone, tablet personal computer, notebook computer etc.）Dress
Put.The fingerprint identification device 500 includes fingerprint tough portion 502, light source 504 and the imaging sensor set gradually from top to bottom
506, the light source 504 is by being arranged on the multiple LED or multiple OLED of the matrix arrangement of the bottom surface in the fingerprint tough portion 502
Composition；
The inside of the fingerprint identification device 500 is provided with control device, as shown in figure 9, being the fingerprint recognition described in the present embodiment
The theory diagram of the control device of device, the control device include contact induction device 902, the light source control portion being sequentially connected
904 and light source drive part 906.
The described fingerprint identification device of this implementation, when the fingerprint is individual to be contacted with the fingerprint tough portion 502,
The contact induction device 902 is used to perceive activation signal, and the activation signal is sent into light source control portion 904, described
After light source control portion 904 receives the activation signal sent from the contact induction device 902, sent out to the light source drive part 906
Driving instruction is sent, and drives the light source 504 to light by the light source drive part 906, the light irradiation fingerprint of the light source 504 connects
The surface of the fingerprint individual contacted in contact portion 502, the contact surface of the fingerprint individual is illuminated, the fingerprint individual of formation is originally
The image of body, described image sensor 506 obtain the optical finger print image of the fingerprint individual, and are converted electronic fingerprint letter
Number transmitted, when the contact induction device 902 perceives the fingerprint individual and releases contact, the light source control portion 904 to
The light source drive part 906 sends out code, and the light source 504 is closed by the light source drive part 906.Therefore, this implementation
Described fingerprint identification device, its light source 504 applied are the states that the fingerprint tough portion 502 is contacted in fingerprint individual
It is lower just to keep luminance, light-off state is kept when the fingerprint individual is not in contact with state to the fingerprint tough portion 502,
With good energy-saving effect.
The fingerprint tough portion 502 is made up of resin material, plastic material or glass tube material.
Multiple LED or multiple OLED are made up of transparent material.
Multiple LED of the light source 504 or multiple OLED independent controls, as shown in figure 5, the fingerprint
The region that body contacts the fingerprint tough portion 502 is contact field 508, each LED or each OLED in the contact field 508
It is luminous, illuminate the contact surface of the fingerprint individual.
Spacing between the fingerprint tough portion 502 and described image sensor 506 is more than the thickness of the light source 504,
So that the spacing reduces as far as possible, so as to improve the precision of the optical finger print image of described image sensor acquisition.
Fig. 7 is the structural representation of the fingerprint identification device of a variant embodiment of the present embodiment：
Fingerprint identification device as shown in Figure 7, the region that the fingerprint individual contacts the fingerprint tough portion 702 is contact field
704, when the fingerprint individual touches the fingerprint tough portion 702, positioned at the contact field 704 outer ledge it is each
LED or each OLED group 706 is luminous, so as to illuminate the contact surface of the fingerprint individual.
Fig. 8 is the structural representation of the fingerprint identification device of another variant embodiment of the present embodiment：
Fingerprint identification device as shown in Figure 8, the region in fingerprint tough portion 802 is contact field shown in the fingerprint individual contact
804, when the fingerprint individual touches the fingerprint tough portion 802, positioned at each of the inside edge in the contact field 804
LED or each OLED first group 806a lights, so as to illuminate the contact surface of the fingerprint individual；
Fingerprint identification device as shown in Figure 8, the region in fingerprint tough portion 802 is contact field shown in the fingerprint individual contact
804, when the fingerprint individual touches the fingerprint tough portion 802, positioned at the contact field 804 outer ledge it is each
LED or each OLED second group 806b lights, so as to illuminate the contact surface of the fingerprint individual；
Fingerprint identification device as shown in Figure 8, the region in fingerprint tough portion 802 is contact field shown in the fingerprint individual contact
804, when the fingerprint individual touches the fingerprint tough portion 802, positioned at each of the inside edge in the contact field 804
The LED either each LED or each OLED of each OLED first group 806a and the outer ledge positioned at the contact field 804
Second group 806b lights, so as to illuminate the contact surface of the fingerprint individual.
Finally illustrate, the above embodiments are merely illustrative of the technical solutions of the present invention and it is unrestricted, although with reference to compared with
The present invention is described in detail good embodiment, it will be understood by those within the art that, can be to the skill of the present invention
Art scheme is modified or equivalent substitution, and without departing from the objective and scope of technical solution of the present invention, it all should cover at this
Among the right of invention.
Claims (8)
- A kind of 1. fingerprint identification device, it is characterised in that：Including fingerprint tough portion and light source and imaging sensor, described image passes Sensor has multiple, and multiple described image sensor matrix arrangements are in the lower end in the fingerprint tough portion, and the light source is by along described The multiple LED or multiple OLED compositions that the edge in fingerprint tough portion is set；The inside of the fingerprint identification device is provided with control device, contact induction device that the control device includes being sequentially connected, Light source control portion and light source drive part.
- A kind of 2. fingerprint identification device, it is characterised in that：Including fingerprint tough portion, light source and the image set gradually from top to bottom Sensor, the light source is by the multiple LED for being arranged on the matrix arrangement of the bottom surface in the fingerprint tough portion or multiple OLED groups Into；The inside of the fingerprint identification device is provided with control device, contact induction device that the control device includes being sequentially connected, Light source control portion and light source drive part.
- A kind of 3. fingerprint identification device according to claim 1 or 2, it is characterised in that：The fingerprint tough portion is by tree Fat material, plastic material or glass tube material are made.
- A kind of 4. fingerprint identification device according to claim 1 or 2, it is characterised in that：Multiple LED or multiple institutes OLED is stated to be uniformly arranged.
- A kind of 5. fingerprint identification device according to claim 1 or 2, it is characterised in that：Multiple LED or multiple institutes OLED is stated to be made up of transparent material.
- A kind of 6. fingerprint identification device according to claim 1 or 2, it is characterised in that：The fingerprint tough portion and described Spacing between imaging sensor is more than the thickness of the light source.
- A kind of 7. fingerprint identification device according to claim 1, it is characterised in that：The contact induction device be provided with it is multiple, Multiple contact induction device homogeneous matrix are arranged on the inner side in the fingerprint tough portion.
- A kind of 8. fingerprint identification device according to claim 2, it is characterised in that：Multiple LED of the light source or The multiple OLED independent controls of person.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610521546.0A CN107590415A (en) | 2016-07-06 | 2016-07-06 | Fingerprint identification device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610521546.0A CN107590415A (en) | 2016-07-06 | 2016-07-06 | Fingerprint identification device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107590415A true CN107590415A (en) | 2018-01-16 |
Family
ID=61045633
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610521546.0A Pending CN107590415A (en) | 2016-07-06 | 2016-07-06 | Fingerprint identification device |
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Citations (7)
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| US5625448A (en) * | 1995-03-16 | 1997-04-29 | Printrak International, Inc. | Fingerprint imaging |
| US20050105785A1 (en) * | 2003-11-18 | 2005-05-19 | Canon Kabushiki Kaisha | Image pick-up apparatus, fingerprint certification apparatus and image pick-up method |
| CN102073860A (en) * | 2010-12-06 | 2011-05-25 | 清华大学 | Optical fingerprint acquisition device, optical fingerprint identification system and method |
| US20120321149A1 (en) * | 2011-05-17 | 2012-12-20 | Carver John F | Fingerprint sensors |
| CN204143785U (en) * | 2014-08-07 | 2015-02-04 | 深圳市迈锐光电有限公司 | A kind of grating display screen |
| CN104598893A (en) * | 2015-02-03 | 2015-05-06 | 上海箩箕技术有限公司 | Fingerprint recognition system, running method of fingerprint recognition system and electronic product |
| CN204463157U (en) * | 2015-01-29 | 2015-07-08 | 张明方 | Finger palm touch inductor, fingerprint palm-print image capture equipment and electronic equipment |
-
2016
- 2016-07-06 CN CN201610521546.0A patent/CN107590415A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5625448A (en) * | 1995-03-16 | 1997-04-29 | Printrak International, Inc. | Fingerprint imaging |
| US20050105785A1 (en) * | 2003-11-18 | 2005-05-19 | Canon Kabushiki Kaisha | Image pick-up apparatus, fingerprint certification apparatus and image pick-up method |
| CN102073860A (en) * | 2010-12-06 | 2011-05-25 | 清华大学 | Optical fingerprint acquisition device, optical fingerprint identification system and method |
| US20120321149A1 (en) * | 2011-05-17 | 2012-12-20 | Carver John F | Fingerprint sensors |
| CN204143785U (en) * | 2014-08-07 | 2015-02-04 | 深圳市迈锐光电有限公司 | A kind of grating display screen |
| CN204463157U (en) * | 2015-01-29 | 2015-07-08 | 张明方 | Finger palm touch inductor, fingerprint palm-print image capture equipment and electronic equipment |
| CN104598893A (en) * | 2015-02-03 | 2015-05-06 | 上海箩箕技术有限公司 | Fingerprint recognition system, running method of fingerprint recognition system and electronic product |
Non-Patent Citations (2)
| Title |
|---|
| KWON K等: "A three-terminal n+-p-n+ silicon CMOS light-emitting device for the new fully integrated optical-type fingerprint recognition system", 《JOURNAL OF DISPLAY TECHNOLOGY》, vol. 12, no. 1, pages 77 - 81, XP011596755, DOI: 10.1109/JDT.2015.2456641 * |
| 严家喜等: "基于USB传输及CMOS图像传感器的指纹识别仪的实现", 《光学仪器》, vol. 27, no. 1, pages 1 - 6 * |
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