CN205230074U - Optic fibre formation of image iris recognition device - Google Patents
Optic fibre formation of image iris recognition device Download PDFInfo
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- CN205230074U CN205230074U CN201521004135.1U CN201521004135U CN205230074U CN 205230074 U CN205230074 U CN 205230074U CN 201521004135 U CN201521004135 U CN 201521004135U CN 205230074 U CN205230074 U CN 205230074U
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- imaging
- image
- fibre faceplate
- eyeglass
- lens
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Abstract
The utility model relates to an optic fibre formation of image iris recognition device, including the image 1 with people's eye that is used for of arranging the forefront in: 1 the formation of image to the formation of image lens of focal plane, locate formation of image lens rear be used for the image on the transmission formation of image lens the fiber faceplate, locate formation of image lens both sides the light filling light source, locate the CMOS sensor at fiber faceplate rear, the fiber faceplate includes many mutual parallel arrangement's optic fibre. The beneficial effects of the utility model are that: owing to replaced traditional optical imaging objective through the fiber faceplate, not only overcome the problem that traditional iris recognition technology must use optical lens, still reduced iris recognition device's size, and the size of fiber faceplate can define as requested by a wide margin, the practicality is stronger, and application range is wider.
Description
Technical field
The utility model relates to a kind of iris identification equipment, particularly relates to a kind of imaging fiber iris identification device.
Background technology
Under the strategy of rejuvenating China by applying scientific and technological advances is guided, the biology such as fingerprint recognition, personal recognition, recognition of face, DNA detection is discerned technology and is widely applied socially, has played vital role in practice.But these technology all have some limitations.Such as, the accuracy rate of fingerprint recognition is lower; After face lift face, cosmetic, then None-identified; DNA apparatus expensive, during check fee, expensive etc.Because having, accuracy is high, the advantage of good stability, high-speed and high-efficiency is approved rapidly widely for iris recognition technology, but, iris identification device on market is all provided with iris recognition camera lens, increases the size of iris identification device, is unfavorable for iris identification device miniaturization, microminiaturization.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of imaging fiber iris identification device, and the iris identification device that solving prior art provides must use optical lens, increase the problem of iris identification device size.
The technical scheme that the utility model solves the problems of the technologies described above is as follows, a kind of imaging fiber iris identification device, comprise be placed in forefront the imaging eyeglass being imaged onto focusing surface for the image 1:1 by human eye, be located at described imaging eyeglass rear for transmit the image on described imaging eyeglass fibre faceplate, be located at the supplementary lighting sources of described imaging eyeglass both sides, be located at the cmos sensor at described fibre faceplate rear; Described fibre faceplate comprises many optical fiber arranged in parallel.
Further: the longitudinal section of described fibre faceplate is taper, the shape of cross section of the forefront of described fibre faceplate is corresponding with the shape of cross section of described imaging eyeglass; The shape of cross section of the rearmost of described fibre faceplate is corresponding with the shape of cross section of described imaging eyeglass.
Further: central shaft totally one central shaft of the central shaft of described imaging eyeglass, the central shaft of described fibre faceplate and described cmos sensor.
Further, described imaging eyeglass is lens or micro-lens array or prism or micro-lens imaging array.
Further, be provided with between described imaging eyeglass and described fibre faceplate for by the image down on described imaging eyeglass to the imaging len of cmos sensor size or lens combination.
Further, described supplementary lighting sources is Infrared LED illumination light source, and its wave band is about 850nm.
The beneficial effects of the utility model are: the light beam irradiation sent by supplementary lighting sources is to human eye, iris image now in human eye shows, human eye iris image is imaged on one end of fibre faceplate after imaging eyeglass, image is delivered to imaging on cmos sensor after fibre faceplate; Owing to be instead of traditional optical imagery object lens by fibre faceplate, not only overcome the problem that traditional iris recognition technology must use optical lens, also significantly reduce the size of iris identification device, and the size of fibre faceplate can define as requested, practicality is stronger, and usable range is wider.
Accompanying drawing explanation
Fig. 1 is the utility model structure principle chart;
In figure 1, human eye; 2, imaging eyeglass; 3, supplementary lighting sources; 4, fibre faceplate; 5, cmos sensor.
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 imaging fiber iris identification device, comprise be placed in forefront the imaging eyeglass 2 being imaged onto focusing surface for the image 1:1 by human eye 1, be located at imaging eyeglass 2 rear be used for be transmitted into as the image on eyeglass 2 fibre faceplate 4, be located at the supplementary lighting sources 3 of imaging eyeglass 2 both sides, be located at the cmos sensor 5 at fibre faceplate 4 rear; Fibre faceplate 4 comprises many optical fiber arranged in parallel.The longitudinal section of fibre faceplate 4 is taper, and the shape of cross section of the forefront of fibre faceplate 4 is corresponding with the shape of cross section of imaging eyeglass 2; The shape of cross section of the rearmost of fibre faceplate 4 is corresponding with the shape of cross section of imaging eyeglass 2.Central shaft totally one central shaft of the central shaft of imaging eyeglass 2, the central shaft of fibre faceplate 4 and cmos sensor 5.
Imaging eyeglass 2 is lens or micro-lens array or prism or micro-lens imaging array.
Can also be provided with between imaging eyeglass 2 and fibre faceplate 4 for by the image down on imaging eyeglass 2 to the imaging len of cmos sensor 5 size or lens combination, cmos sensor 5 is delivered to through fibre faceplate 4 again by after image down, the shape of fibre faceplate 4 is made to be regular shape, and non-tapered, be convenient to production and processing, save material.
Supplementary lighting sources 3 is Infrared LED illumination light source, and its wave band is about 850nm.
The light beam irradiation sent by supplementary lighting sources 3 is to human eye 1, iris image now in human eye 1 shows, human eye 1 iris image is imaged on one end of fibre faceplate 4 after imaging eyeglass 2, image is delivered to imaging on cmos sensor 5 after fibre faceplate 4; Owing to instead of traditional optical imagery object lens by fibre faceplate 4, not only overcome the problem that traditional iris recognition technology must use optical lens, also significantly reduce the size of iris identification device, and the size of fibre faceplate 4 can define as requested, practicality is stronger, and usable range is wider.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (6)
1. an imaging fiber iris identification device, is characterized in that: comprise be placed in forefront the imaging eyeglass (2) being imaged onto focusing surface for the image 1:1 by human eye (1), be located at described imaging eyeglass (2) rear for transmit the image on described imaging eyeglass (2) fibre faceplate (4), be located at the supplementary lighting sources (3) of described imaging eyeglass (2) both sides, be located at the cmos sensor (5) at described fibre faceplate (4) rear; Described fibre faceplate (4) comprises many optical fiber arranged in parallel.
2. a kind of imaging fiber iris identification device according to claim 1, it is characterized in that: the longitudinal section of described fibre faceplate (4) is taper, the shape of cross section of the forefront of described fibre faceplate (4) is corresponding with the shape of cross section of described imaging eyeglass (2); The shape of cross section of the rearmost of described fibre faceplate (4) is corresponding with the shape of cross section of described imaging eyeglass (2).
3. a kind of imaging fiber iris identification device according to claim 1, is characterized in that: central shaft totally one central shaft of the central shaft of described imaging eyeglass (2), the central shaft of described fibre faceplate (4) and described cmos sensor (5).
4. a kind of imaging fiber iris identification device according to Claims 2 or 3, is characterized in that: described imaging eyeglass (2) is lens or micro-lens array or prism or micro-lens imaging array.
5. a kind of imaging fiber iris identification device according to Claims 2 or 3, is characterized in that: be provided with between described imaging eyeglass (2) and described fibre faceplate (4) for by the image down on described imaging eyeglass (2) to the imaging len of cmos sensor (5) size or lens combination.
6. a kind of imaging fiber iris identification device according to claim 4, is characterized in that: described supplementary lighting sources (3) is Infrared LED illumination light source, and its wave band is about 850nm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521004135.1U CN205230074U (en) | 2015-12-04 | 2015-12-04 | Optic fibre formation of image iris recognition device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521004135.1U CN205230074U (en) | 2015-12-04 | 2015-12-04 | Optic fibre formation of image iris recognition device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205230074U true CN205230074U (en) | 2016-05-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201521004135.1U Active CN205230074U (en) | 2015-12-04 | 2015-12-04 | Optic fibre formation of image iris recognition device |
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| CN (1) | CN205230074U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108632516A (en) * | 2018-07-06 | 2018-10-09 | 北京捷威思特科技有限公司 | A kind of downhole optic fiber imaging camera machine |
-
2015
- 2015-12-04 CN CN201521004135.1U patent/CN205230074U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108632516A (en) * | 2018-07-06 | 2018-10-09 | 北京捷威思特科技有限公司 | A kind of downhole optic fiber imaging camera machine |
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