CN206429909U - A kind of infrared LED optical system for iris recognition - Google Patents
A kind of infrared LED optical system for iris recognition Download PDFInfo
- Publication number
- CN206429909U CN206429909U CN201720094018.1U CN201720094018U CN206429909U CN 206429909 U CN206429909 U CN 206429909U CN 201720094018 U CN201720094018 U CN 201720094018U CN 206429909 U CN206429909 U CN 206429909U
- Authority
- CN
- China
- Prior art keywords
- reflector
- lens
- iris recognition
- optical system
- infrared led
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model is related to a kind of infrared LED optical system for iris recognition, including reflector, lens and chip, and lens are arranged at the top of reflector, chip is arranged in reflector, the incidence surface of lens has male part, and male part is unsymmetric structure, and the reflecting surface of reflector is asymmetric curved surface.The reflecting surface of the utility model reflector and the unsymmetric form of lens incidence surface, the light sent to light source carry out luminous intensity distribution and Shape correction, launch the infrared light of high intensity, high efficiency and brightness uniformity, it is ensured that iris recognition precision, improve comfort level.
Description
Technical field
The utility model is related to field of illuminating lamps, more particularly to a kind of infrared LED optical system for iris recognition.
Background technology
Iris recognition needs Infrared irradiation iris, then shoots iris image with video camera.Conventional illumination module
It is to send infrared light with common infrared LED, irradiates iris by collector lens reflection and after reflecting, its volume is larger, and goes out
Firing angle degree, light extraction efficiency and the uniformity are all bad, and iris recognition precision is not ideal, exists with advances in technology with iris recognition
The application of each field (particularly mobile phone), current effect can not meet requirement, give people uncomfortable sensation.
Utility model content
The utility model aims to provide a kind of infrared LED optical system for iris recognition, by chip send it is infrared
Light carries out optically focused and polarisation, makes emitting brightness uniform, improves comfort level.
To reach above-mentioned purpose, the technical solution adopted in the utility model is as follows：
A kind of infrared LED optical system for iris recognition, including reflector, lens and chip, the lens are installed
At the top of reflector, the chip is arranged in reflector, and the incidence surface of the lens has male part, and the male part is non-right
Claim structure, the reflecting surface of the reflector is asymmetric curved surface.
Further, the chip is located at reflector bottom.
Further, the exiting surface of the lens is plane.
Further, infrared chip mounting hole is arranged at the reflector bottom.
Further, the reflector is Nian Jie with lens.
Compared with prior art, the utility model has the advantages that：
The reflecting surface of the utility model reflector and the unsymmetric form of lens incidence surface, match somebody with somebody to the light that light source is sent
Light and Shape correction, launch the infrared light of high intensity, high efficiency and brightness uniformity, it is ensured that iris recognition precision, improve comfortable
Degree.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is that chip passes through light path schematic diagram of the present utility model；
In figure：1- lens, 2- reflectors, 3- chips, 4- incidence surfaces, 5- male parts, 6- exiting surfaces.
Embodiment
In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with accompanying drawing, to this reality
It is further elaborated with new.
As shown in figure 1, a kind of infrared LED optical system for iris recognition disclosed in the utility model, including it is reflective
Cup 2, lens 1 and chip 3, lens 1 are arranged on the top of reflector 2, and further, reflector 2 is be bonded with lens 1.Chip 3 is installed
In reflector 2, further, infrared chip mounting hole is arranged at the bottom of reflector 2, and infrared chip mounting hole site is in the bottom of reflector 2
Portion center.
The incidence surface 4 of lens 1 has male part 5, and male part 5 is that unsymmetric structure, the i.e. outer surface of male part 5 at least include two
Individual crooked radian difference and the curved surface being smoothly connected；Further, the exiting surface 6 of lens 1 is plane.Further, chip 3
In the bottom of reflector 2.The reflecting surface of reflector 2 is that asymmetric curved surface, the i.e. reflecting surface at least include two crooked radian differences
And the curved surface being smoothly connected.
As shown in Fig. 2 some light that chip is sent plays optically focused and polarisation by the free form surface shaping of male part 5
Effect；Remainder is projected by the reflective surface optically focused of reflector 2 and polarisation, then by exiting surface 6.The utility model
The light sent with reflector and lens to chip light source carries out luminous intensity distribution, Shape correction, and rising angle is small, intensity is high, brightness is equal
It is even.
Certainly, the utility model can also have other various embodiments, spiritual and its essence without departing substantially from the utility model
In the case of, those skilled in the art can make various corresponding changes and deformation, but these phases according to the utility model
The change and deformation answered should all belong to the scope of the claims appended by the utility model.
Claims (5)
1. a kind of infrared LED optical system for iris recognition, it is characterised in that:Including reflector (2), lens (1) and crystalline substance
Piece (3), the lens (1) are arranged at the top of reflector (2), and the chip (3) is arranged in reflector (2), the lens (1)
Incidence surface (4) have a male part (5), the male part (5) is unsymmetric structure, and the reflecting surface of the reflector (2) is non-right
Claim curved surface.
2. it is used for the infrared LED optical system of iris recognition as claimed in claim 1, it is characterised in that:Chip (3) position
In reflector (2) bottom.
3. it is used for the infrared LED optical system of iris recognition as claimed in claim 1, it is characterised in that:The lens (1)
Exiting surface (6) is plane.
4. it is used for the infrared LED optical system of iris recognition as claimed in claim 1, it is characterised in that:The reflector (2)
Infrared chip mounting hole is arranged at bottom.
5. it is used for the infrared LED optical system of iris recognition as claimed in claim 1, it is characterised in that:The reflector (2)
It is Nian Jie with lens (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720094018.1U CN206429909U (en) | 2017-01-24 | 2017-01-24 | A kind of infrared LED optical system for iris recognition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720094018.1U CN206429909U (en) | 2017-01-24 | 2017-01-24 | A kind of infrared LED optical system for iris recognition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206429909U true CN206429909U (en) | 2017-08-22 |
Family
ID=59590995
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720094018.1U Expired - Fee Related CN206429909U (en) | 2017-01-24 | 2017-01-24 | A kind of infrared LED optical system for iris recognition |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206429909U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108055430A (en) * | 2017-12-13 | 2018-05-18 | 广东欧珀移动通信有限公司 | Electronic device |
| CN109116662A (en) * | 2017-06-23 | 2019-01-01 | 光宝科技股份有限公司 | Luminescent control system and image identification camera and mobile phone with it |
| CN110007390A (en) * | 2019-05-21 | 2019-07-12 | 青岛亿联客信息技术有限公司 | A kind of asymmetrical beam distribution of illumination optical system and lighting device |
| CN110007390B (en) * | 2019-05-21 | 2024-06-28 | 青岛亿联客信息技术有限公司 | Asymmetric light distribution illumination optical system and illumination device |
-
2017
- 2017-01-24 CN CN201720094018.1U patent/CN206429909U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109116662A (en) * | 2017-06-23 | 2019-01-01 | 光宝科技股份有限公司 | Luminescent control system and image identification camera and mobile phone with it |
| CN108055430A (en) * | 2017-12-13 | 2018-05-18 | 广东欧珀移动通信有限公司 | Electronic device |
| US11601579B2 (en) | 2017-12-13 | 2023-03-07 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Electronic device |
| CN110007390A (en) * | 2019-05-21 | 2019-07-12 | 青岛亿联客信息技术有限公司 | A kind of asymmetrical beam distribution of illumination optical system and lighting device |
| CN110007390B (en) * | 2019-05-21 | 2024-06-28 | 青岛亿联客信息技术有限公司 | Asymmetric light distribution illumination optical system and illumination device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 610000 No. 386, Shuikou Road, Jiaolong Industrial Port, Shuangliu District, Chengdu City, Sichuan Province Patentee after: CHENGDU PULSE OPTICS-TECH Co.,Ltd. Address before: 610073 No. 386 Shuikou Road, Shuangliu Park, Jiaolong Industrial Port, Chengdu City, Sichuan Province Patentee before: CHENGDU SENSHE INTELLIGENT TECHNOLOGY Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170822 Termination date: 20220124 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |