CN103996034A - Manufacturing method for fingerprint recognition sensor - Google Patents
Manufacturing method for fingerprint recognition sensor Download PDFInfo
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- CN103996034A CN103996034A CN201410268478.2A CN201410268478A CN103996034A CN 103996034 A CN103996034 A CN 103996034A CN 201410268478 A CN201410268478 A CN 201410268478A CN 103996034 A CN103996034 A CN 103996034A
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- prism
- fingerprint
- fingerprint identification
- identification unit
- sensor
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Abstract
The invention discloses a manufacturing method for a fingerprint recognition sensor. The manufacturing method comprises the steps that (1), the periphery of the bottom end of an optical sensor body component into which a prism is to be inserted is coated with waterproof materials; (2) the prism is inserted into the optical sensor body component, (3) the periphery of the back face of the prism is coated with waterproof materials after the prism is inserted into the optical sensor body. According to the manufacturing method for the fingerprint recognition sensor, gaps are prevented from being generated at the portion, making contact with fingerprint recognizer shell plastic, of the prism, so that internal sealing performance of equipment is improved, and the problem that water enters the fingerprint recognition sensor to damage an internal circuit is avoided.
Description
Technical field
The invention belongs to fingerprint identification technology field, relate to a kind of Fingerprint Identification Unit, relate in particular to a kind of preparation method of fingerprint Identification sensor.
Background technology
Fingerprint recognition refers to by the details of more different fingerprints and differentiates.Because everyone fingerprint is different, be exactly that between same people's ten fingers, fingerprint also has obvious difference, so fingerprint can be used for identity authentication.
In existing Fingerprint Identification Unit, the part that prism contacts with Fingerprint Identification Unit casing plastic can produce gap unavoidably, by the outside water flowing in this gap, can destroy circuit board, causes Fingerprint Identification Unit cisco unity malfunction.
In view of this, nowadays in the urgent need to designing a kind of preparation method of Fingerprint Identification Unit, to overcome the above-mentioned defect of existing Fingerprint Identification Unit.
Summary of the invention
Technical matters to be solved by this invention is: a kind of preparation method of fingerprint Identification sensor is provided, can improves the sealing of device interior, avoid entering destruction internal circuit.
For solving the problems of the technologies described above, the present invention adopts following technical scheme:
A preparation method for fingerprint Identification sensor, described preparation method comprises:
Step S1, in the optical sensor main element bottom that is inserted into prism, be around coated with waterproof material;
Step S2, insertion prism;
Step S3, prism are coated with waterproof material at prism back periphery after inserting sensor main body.
As a preferred embodiment of the present invention, Fingerprint Identification Unit comprises outer plastic shell, inserts the prism of plastic housing, built-in light source, lens, imageing sensor and control circuit;
When the fingerprint collecting face of prism contacts fingerprint, the light of light source transmitting is reflected and absorbs at crestal line and the valley line of fingerprint, and wherein the light of reflection is tied to form picture by prism at lens, and this imaging is received by imageing sensor; Image processor is with the judgement of comparing of the registered fingerprint of database afterwards;
The part that prism contacts with Fingerprint Identification Unit casing plastic can produce gap unavoidably, by the outside water flowing in this gap, can destroy circuit board, so and Fingerprint Identification Unit cisco unity malfunction.
Beneficial effect of the present invention is: the preparation method of a kind of fingerprint Identification sensor that the present invention proposes, can avoid the part contacting with Fingerprint Identification Unit casing plastic at prism to produce gap, thereby improve the sealing of device interior, avoid entering destruction internal circuit.
Accompanying drawing explanation
Fig. 1 is the preparation method's of fingerprint Identification sensor of the present invention process flow diagram.
Fig. 2 is the structural representation of fingerprint Identification sensor.
Embodiment
Below in conjunction with accompanying drawing, describe the preferred embodiments of the present invention in detail.
Embodiment mono-
Refer to Fig. 1, Fig. 2, the present invention has disclosed a kind of preparation method of fingerprint Identification sensor, and described preparation method comprises:
[step S1] is coated with waterproof material around in the optical sensor main element bottom that is inserted into prism 2;
[step S2] inserts prism 2;
Back periphery at prism 2 after [step S3] prism 2 insertion sensor main body parts is coated with waterproof material.
Refer to Fig. 2, Fingerprint Identification Unit comprises outer plastic shell 1, inserts the prism 2 of plastic housing, built-in light source, lens, imageing sensor and control circuit;
Fingerprint Identification Unit principle of work is: when the fingerprint collecting face of prism contacts fingerprint, the light of light source transmitting is reflected and absorbs at crestal line and the valley line of fingerprint, and wherein the light of reflection is tied to form picture by prism at lens, and this imaging is received by imageing sensor; Image processor is with the judgement of comparing of the registered fingerprint of database afterwards.
The part that prism contacts with Fingerprint Identification Unit casing plastic can produce gap unavoidably, by the outside water flowing in this gap, can destroy circuit board, so and Fingerprint Identification Unit cisco unity malfunction.
In sum, the preparation method of a kind of fingerprint Identification sensor that the present invention proposes, can avoid the part contacting with Fingerprint Identification Unit casing plastic at prism to produce gap, thereby improve the sealing of device interior, avoids entering destruction internal circuit.
Here description of the invention and application is illustrative, not wants by scope restriction of the present invention in the above-described embodiments.Here the distortion of disclosed embodiment and change is possible, and for those those of ordinary skill in the art, the various parts of the replacement of embodiment and equivalence are known.Those skilled in the art are noted that in the situation that not departing from spirit of the present invention or essential characteristic, and the present invention can be with other form, structure, layout, ratio, and realizes with other assembly, material and parts.In the situation that not departing from the scope of the invention and spirit, can carry out other distortion and change to disclosed embodiment here.
Claims (2)
1. a preparation method for fingerprint Identification sensor, is characterized in that, described preparation method comprises:
Step S1, in the optical sensor main element bottom that is inserted into prism, be around coated with waterproof material;
Step S2, insertion prism;
Step S3, prism are coated with waterproof material at prism back periphery after inserting sensor main body.
2. the preparation method of fingerprint Identification sensor according to claim 1, is characterized in that:
Fingerprint Identification Unit comprises outer plastic shell, inserts the prism of plastic housing, built-in light source, lens, imageing sensor and control circuit;
When the fingerprint collecting face of prism contacts fingerprint, the light of light source transmitting is reflected and absorbs at crestal line and the valley line of fingerprint, and wherein the light of reflection is tied to form picture by prism at lens, and this imaging is received by imageing sensor; Image processor is with the judgement of comparing of the registered fingerprint of database afterwards;
The part that prism contacts with Fingerprint Identification Unit casing plastic can produce gap unavoidably, by the outside water flowing in this gap, can destroy circuit board, so and Fingerprint Identification Unit cisco unity malfunction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410268478.2A CN103996034A (en) | 2014-06-17 | 2014-06-17 | Manufacturing method for fingerprint recognition sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410268478.2A CN103996034A (en) | 2014-06-17 | 2014-06-17 | Manufacturing method for fingerprint recognition sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103996034A true CN103996034A (en) | 2014-08-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410268478.2A Pending CN103996034A (en) | 2014-06-17 | 2014-06-17 | Manufacturing method for fingerprint recognition sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103996034A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106778663A (en) * | 2016-12-29 | 2017-05-31 | 苏州塞罗尔医学影像科技有限公司 | A kind of fingerprint recognition system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200997142Y (en) * | 2006-12-11 | 2007-12-26 | 郑州安和指纹识别技术有限公司 | Human-body feature fingerprint collecting identifier |
| CN101656299A (en) * | 2008-08-22 | 2010-02-24 | Testech株式会社 | Touch luminous element, manufacturing method thereof and fingerprint identification device |
-
2014
- 2014-06-17 CN CN201410268478.2A patent/CN103996034A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200997142Y (en) * | 2006-12-11 | 2007-12-26 | 郑州安和指纹识别技术有限公司 | Human-body feature fingerprint collecting identifier |
| CN101656299A (en) * | 2008-08-22 | 2010-02-24 | Testech株式会社 | Touch luminous element, manufacturing method thereof and fingerprint identification device |
Non-Patent Citations (1)
| Title |
|---|
| 朱昮: "指纹识别技术在防盗门中的应用研究", 《中国优秀硕士学位论文全文数据库 信息科技辑》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106778663A (en) * | 2016-12-29 | 2017-05-31 | 苏州塞罗尔医学影像科技有限公司 | A kind of fingerprint recognition system |
| CN106778663B (en) * | 2016-12-29 | 2023-07-07 | 苏州塞罗尔医学影像科技有限公司 | Fingerprint identification system |
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Application publication date: 20140820 |