CN204944795U - A kind of iris recognition optical lens detection device - Google Patents
A kind of iris recognition optical lens detection device Download PDFInfo
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- CN204944795U CN204944795U CN201520745656.6U CN201520745656U CN204944795U CN 204944795 U CN204944795 U CN 204944795U CN 201520745656 U CN201520745656 U CN 201520745656U CN 204944795 U CN204944795 U CN 204944795U
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Abstract
The utility model relates to a kind of iris recognition optical lens detection device, and it comprises object plane, infrared filter, the first infrared illuminator, the second infrared illuminator, optical lens, LCD display, processing main plate box and processing main plate; Infrared filter is arranged between object plane and processing main plate box; Optical lens is arranged on the side of processing main plate box near infrared filter; First infrared illuminator, the second infrared illuminator are arranged on the both sides of optical lens; LCD display is arranged on the upper surface of processing main plate box; Processing main plate is arranged in processing main plate box.The beneficial effects of the utility model are: structure is very succinct, easy to use, only needs iris recognition object lens to be installed on this device to regulate.Internal system combines the result of all optical indexes, and display screen surface only demonstrates the concrete numerical value after a COMPREHENSIVE CALCULATING.User need not do the statistics of various parameter again and calculate the judge that can complete iris object lens picture element.
Description
Technical field
The utility model relates to a kind of iris recognition optical lens detection device.
Background technology
1, the utility model patent of University Of Chongqing's application, its application number is: 201310108192.3, which provides a kind of inverse synthetic aperture radar (ISAR) ISAR image image quality assessment method.The image quality of ISAR image is evaluated according to the average of the peak sidelobe ratio PSLR of each scattering point on ISAR image peak signal edge contour.The method only can be used in specific ISAR field, does not have practical value in iris recognition field.
2, the utility model patent of Shenzhen Graduate School of Tsinghua University and Beijing Institute of Technology's application, its application number is: 201310440198.0, and this utility model describes a kind of image quality detection method.Be specially the random image of several m × n of generation and be presented on liquid crystal display, be imaged on ccd sensor by optical system by the random image on screen, the power spectrum density then collected according to original image and CCD is compared and is resolved to measure and treats that the wavefront difference of examining system carrys out the image quality of evaluation image.The method wherein measuring rich cuttage needs the two-dimensional modulation transport function first measuring imaging system, then transport function is done to the relation shifted onto further and obtain between transport function and wavefront difference, then utilize the counter of modulation transfer function to calculate not cuttage, find the wavefront difference of real system.The method shortcoming is that computation process is too loaded down with trivial details, and the anti-value calculated to extrapolate wavefront difference also to be verified whether true and reliablely.
3, the utility model patent of Zhongkehongba Tech Co., Ltd., Beijing's application, its application number is: 201410071965.X, and the method told about in this utility model patent is a kind of a set of guide rail, target and emplacing platform of arranging on optical table.Target is placed star tester, GTG plate etc., iris equipment is used to carry out the test gathering various situation, each test event after collection add and after arithmetic mean be result, concrete test value includes and blocks mark, the convenient contrast of iris, sharpness, gray-scale value, the concentric regularity of iris etc.The shortcoming of this scheme is: 1) test process is too loaded down with trivial details, and the picture needing the mode constantly changing test board to carry out overall various collection is preserved, its concrete performance of manual analysis.2) whole equipment does not form the good device of a specification, need to be placed on optical table, and the price of optical table own is high, the method for an overall just experiment, and does not claim to be the equipment of a set of advanced person.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of iris recognition optical lens detection device, solves the some shortcomings of prior art.
The technical scheme that the utility model solves the problems of the technologies described above is as follows: a kind of iris recognition optical lens detection device, and it comprises object plane, infrared filter, the first infrared illuminator, the second infrared illuminator, optical lens, LCD display, processing main plate box and processing main plate; Described infrared filter is arranged between described object plane and described processing main plate box; Described optical lens is arranged on described processing main plate box near the side of described infrared filter; Described first infrared illuminator, the second infrared illuminator are arranged on the both sides of described optical lens; Described LCD display is arranged on the upper surface of described processing main plate box; Described processing main plate is arranged in processing main plate box.
The beneficial effects of the utility model are: structure is very succinct, easy to use, only needs iris recognition object lens to be installed on this device to regulate.Internal system combines the result of all optical indexes, and display screen surface only demonstrates the concrete numerical value after a COMPREHENSIVE CALCULATING.User need not do the statistics of various parameter again and calculate the judge that can complete iris object lens picture element.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
Be described principle of the present utility model and feature below in conjunction with accompanying drawing, example, only for explaining the utility model, is not intended to limit scope of the present utility model.
As shown in Figure 1, a kind of iris recognition optical lens detection device, comprises the object plane 101 of iris patterns, infrared filter 102, first infrared illuminator 103a, the second infrared illuminator 103b, the optical lens 104 of iris recognition to be detected, LCD display 105, processing main plate box 106 and processing main plate.
Infrared filter 102 is arranged between object plane 101 and processing main plate box 106; Optical lens 104 is arranged on the side of processing main plate box 106 near infrared filter 102; First infrared illuminator 103a, the second infrared illuminator 103b are arranged on the both sides of optical lens 104; LCD display 105 is arranged on the upper surface of processing main plate box 106; Processing main plate is arranged in processing main plate box 106.
Distance between best object plane 101 and infrared filter 102 is adjustable, in order to realize this effect, can be provided with the track 107 extended to object plane 101 in the lower end of processing main plate box 106, object plane 101 is arranged on this track 107, and can move around along track 107.
The course of work of the present utility model: the Infrared irradiation that the first infrared illuminator 103a and the second infrared illuminator 103b launches reflects to object plane 101, light therethrough infrared filter 102 laggard enter optical lens 104, in described processing main plate, carry out data processing, last result is presented in described LCD display 105.
Although illustrate and described embodiment of the present utility model above, be understandable that, above-described embodiment is exemplary, can not be interpreted as restriction of the present utility model, those of ordinary skill in the art can change above-described embodiment, revises, replace and modification in scope of the present utility model.
Claims (2)
1. an iris recognition optical lens detection device, is characterized in that: comprise object plane, infrared filter, the first infrared illuminator, the second infrared illuminator, optical lens, LCD display, processing main plate box and processing main plate;
Described infrared filter is arranged between described object plane and described processing main plate box; Described optical lens is arranged on described processing main plate box near the side of described infrared filter; Described first infrared illuminator, the second infrared illuminator are arranged on the both sides of described optical lens; Described LCD display is arranged on the upper surface of described processing main plate box; Described processing main plate is arranged in processing main plate box.
2. a kind of iris recognition optical lens detection device according to claim 1, it is characterized in that: the distance between described object plane and described infrared filter is adjustable, the lower end of described processing main plate box is provided with the track extended to described object plane, and described object plane arranges on the track and can move around along described track.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520745656.6U CN204944795U (en) | 2015-09-23 | 2015-09-23 | A kind of iris recognition optical lens detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520745656.6U CN204944795U (en) | 2015-09-23 | 2015-09-23 | A kind of iris recognition optical lens detection device |
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| Publication Number | Publication Date |
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| CN204944795U true CN204944795U (en) | 2016-01-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520745656.6U Active CN204944795U (en) | 2015-09-23 | 2015-09-23 | A kind of iris recognition optical lens detection device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105181297A (en) * | 2015-09-23 | 2015-12-23 | 武汉虹识技术有限公司 | Iris recognition optical lens detector |
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2015
- 2015-09-23 CN CN201520745656.6U patent/CN204944795U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105181297A (en) * | 2015-09-23 | 2015-12-23 | 武汉虹识技术有限公司 | Iris recognition optical lens detector |
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