CN105137568A - Two-gear zooming imaging lens for iris/face, imaging module and recognition device - Google Patents
Two-gear zooming imaging lens for iris/face, imaging module and recognition device Download PDFInfo
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Abstract
The invention discloses a two-gear zooming imaging lens for an iris/face, an imaging module and a recognition device. The two-gear zooming imaging lens, the imaging module and the recognition device belong to the field of biological recognition. The imaging lens comprises a first lens set, a second lens set and a third lens set from front to back. The first lens set comprises a first lens with a positive focal power. The second lens set comprises a second lens with a negative focal power and a third lens with a negative focal power. The third lens set comprises a fourth lens with a positive focal power, a fifth lens with a positive focal power, a sixth lens with a positive focal power, a seventh lens with a negative focal power, and an eighth lens with a positive focal power. The first lens, the second lens, the third lens, the fourth lens, the fifth lens, the sixth lens, the seventh lens and the eighth lens are respectively a planoconvex lens, a convexo-concave lens, a planoconcave lens, a biconvex lens, a planoconvex lens, a convexo-concave lens, a planoconcave lens and a biconvex lens. The distance between the first lens set and the second lens set and the distance between the second lens set and the third lens set are adjustable. The two-gear zooming imaging lens has advantages of simple structure, low cost and convenient use. High-quality face and iris images can be acquired.
Description
Technical field
The present invention relates to field of biological recognition, refer to a kind of iris/face two grades of varifocal imaging camera lenses, imaging modules and recognition devices especially.
Background technology
Modern society is along with the development of internet and ecommerce, and people also more pay close attention to the safety of personal information and identity while enjoying its various convenience brought.And in numerous guard methods, the mode being come guarantee information and identity security by the biological characteristic that people is intrinsic is approved more and more widely, become the first-selection of system login, authentication, management of public safety gradually.The safety certifying methods such as current fingerprint, iris, face, vein and equipment have been applied in daily life and security fields; but a certain item single creature feature identification technique has its limitation; proprietary application (as: fingerprint recognition can not be applied to the people of worn fingerprints) can not be met; thus combine biometrics identification technology and become the focus paid close attention in recent years; it overcomes certain limitation to a certain extent, and overall recognition accuracy usually can higher than single creature feature identification technique.In numerous living things feature recognition combination, recognition of face and iris recognition are the biometrics identification technologies of most potentiality.
Current existing iris and face fusion identification equipment generally have the imaging system of more than 2 with the use of, take for facial image for one, take for iris image for one, complicated integral structure, it is more difficult that operation controls, and price is higher, as: patent CN1618079 utilizes iris authentication system and the method for stereoscopic face recognition, its whole system comprises 2 or more face recognition cameras and two iris recognition camera, whole system utilize the information of face collected by camera obtain by analysis control information with control step motor drive iris camera carry out work, systematic comparison is complicated, very accurate cooperation is needed well to apply.
Summary of the invention
The invention provides a kind of iris/face two grades of varifocal imaging camera lenses, imaging modules and recognition devices, this lens construction is simple, and cost is low, easy to use, can gather high-quality face and iris image.
For solving the problems of the technologies described above, the invention provides technical scheme as follows:
A kind of iris/face two grades of varifocal imaging camera lenses, comprise successively from front to back along optical axis direction: first lens combination with positive light coke, have the second lens combination of negative power, and have the 3rd lens combination of positive light coke, wherein:
Described first lens combination comprises the first lens, and described first lens are the plano-convex lens with positive light coke, and its front surface is convex surface, and rear surface is plane;
Described second lens combination comprises the second lens and the 3rd lens from front to back successively along optical axis direction; Described second lens are the meniscus with negative power, and its front surface is convex surface, and rear surface is concave surface; Described 3rd lens are the plano-concave lens with negative power, and its front surface is concave surface, and rear surface is plane;
Described 3rd lens combination comprises the 4th lens, the 5th lens, the 6th lens, the 7th lens and the 8th lens from front to back successively along optical axis direction; Described 4th lens are the biconvex lens with positive light coke, and its front surface is convex surface, and rear surface is convex surface; Described 5th lens are the plano-convex lens with positive light coke, and its front surface is convex surface, and rear surface is plane; Described 6th lens are the meniscus with positive light coke, and its front surface is convex surface, and rear surface is concave surface; Described 7th lens are the plano-concave lens with negative power, and its front surface is plane, and rear surface is concave surface; Described 8th lens are the biconvex lens with positive light coke, and its front surface is convex surface, and rear surface is convex surface;
Described first lens combination, the second lens combination and the 3rd lens combination distance are each other adjustable, when being in primary importance relation, can be used in gathering facial image; When being in second place relation, can be used in gathering iris image; Described in when being in primary importance relation, the focal length of two grades of varifocal imaging camera lenses is less than the focal length of two grades of varifocal imaging camera lenses described in when being in second place relation.
A kind of iris/face two grades of varifocal imaging modules, comprise above-mentioned arbitrary iris/face two grades of varifocal imaging camera lenses and be positioned at the imageing sensor of described iris/face with two grades of varifocal imaging camera lens rears, described imageing sensor is CCD or cmos sensor.
A kind of iris/face two grades of zoom recognition devices, the hardware circuit comprising above-mentioned arbitrary imaging modules and be connected with described imaging modules.
The present invention has following beneficial effect:
Compared with prior art, iris/face of the present invention two grades of varifocal imaging camera lenses have the first lens combination, the second lens combination and the 3rd lens combination from front to back successively along optical axis direction, and the distance between them is adjustable, when being in primary importance relation, be now short Jiao's end, can be used in gathering facial image; When being in second place relation, being now focal length end, can be used in gathering iris image; The focal length of short Jiao's end is less than the focal length of focal length end, and iris/face of the present invention two grades of varifocal imaging camera lenses are applicable to wider imaging wavelength range, comprise visible light wave range (400-700nm) and near-infrared band (700-900nm).The present invention uses 3 groups of lens combination can complete the collection of face and iris image, and structure is simple, and cost is low; And zoom only needs mobile second lens combination and the 3rd lens combination, easy to use.
Iris/face of the present invention two grades of varifocal imaging camera lenses are followed successively by plano-convex lens, meniscus, plano-concave lens, biconvex lens, plano-convex lens, meniscus, plano-concave lens and biconvex lens along vertical eight lens of optical axis direction.This imaging lens, when short Jiao's end gathers facial image, has higher image quality at visible light wave range, can be used for gathering facial image clearly; When focal length end gathers iris image, at near-infrared band, there is higher image quality, distort little, can be used for the iris image (especially binocular iris image) gathering texture-rich.Image quality is high.
Therefore, iris/face of the present invention is simple with two grades of varifocal imaging lens constructions, and cost is low, easy to use, can gather high-quality face and iris image.
Accompanying drawing explanation
Fig. 1 is the structural representation of iris/face of the present invention two grades of varifocal imaging camera lenses;
Fig. 2 is the change schematic diagram of iris/face of the present invention two grades of varifocal imaging camera lenses each lens combination when zoom; Wherein 2a is short Jiao's end, and 2b is focal length end;
Fig. 3 is the optical performance curve figure of iris/face two grades of varifocal imaging camera lenses at short Jiao's end of embodiment one, wherein: 3A is distortion curve figure, 3B is curvature of field curve map, and 3C is MTF performance diagram;
Fig. 4 is the optical performance curve figure of iris/face two grades of varifocal imaging camera lenses at focal length end of embodiment one, wherein: 4A is distortion curve figure, 4B is curvature of field curve map, and 4C is MTF performance diagram.
Embodiment
For making the technical problem to be solved in the present invention, technical scheme and advantage clearly, be described in detail below in conjunction with the accompanying drawings and the specific embodiments.
On the one hand, the invention provides a kind of iris/face two grades of varifocal imaging camera lenses, as shown in Figure 1, comprise successively from front to back along optical axis direction: first lens combination 101 with positive light coke, there is the second lens combination 102 of negative power, and there is the 3rd lens combination 103 of positive light coke, wherein:
First lens combination 101 comprises the first lens 1, first lens 1 for having the plano-convex lens of positive light coke, and its front surface 11 is convex surface, and rear surface 12 is plane;
Second lens combination 102 comprises the second lens 2 and the 3rd lens 3 from front to back successively along optical axis direction; Second lens 2 are for having the meniscus of negative power, and its front surface 21 is convex surface, and rear surface 22 is concave surface; 3rd lens 3 are for having the plano-concave lens of negative power, and its front surface 31 is concave surface, and rear surface 32 is plane;
3rd lens combination 103 comprises the 4th lens 4, the 5th lens 5, the 6th lens 6, the 7th lens 7 and the 8th lens 8 from front to back successively along optical axis direction; 4th lens 4 are for having the biconvex lens of positive light coke, and its front surface 41 is convex surface, and rear surface 42 is convex surface; 5th lens 5 are for having the plano-convex lens of positive light coke, and its front surface 51 is convex surface, and rear surface 52 is plane; 6th lens 6 are for having the meniscus of positive light coke, and its front surface 61 is convex surface, and rear surface 62 is concave surface; 7th lens 7 are for having the plano-concave lens of negative power, and its front surface 71 is plane, and rear surface 72 is concave surface; 8th lens 8 are for having the biconvex lens of positive light coke, and its front surface 81 is convex surface, and rear surface 82 is convex surface;
First lens combination 101, second lens combination 102 and the 3rd lens combination 103 distance each other adjustable, when being in primary importance relation, can be used in gather facial image; When being in second place relation, can be used in gathering iris image; When being in primary importance relation, the focal length of two grades of varifocal imaging camera lenses is less than the focal length of two grades of varifocal imaging camera lenses when being in second place relation.For avoiding the interference of other light when ensureing imaging, optical filter filtering parasitic light can be set, optical filter comprises visible filter and near infrared filter, wherein when being in primary importance relation and short Jiao end, when gathering facial image, arranging visible filter allows visible light wave range (400-700nm) to pass through, other band of light filter out, when being in second place relation and focal length end, gather iris image, arranging near infrared filter allows near-infrared band to pass through, other band of light filter out, need to configure switching device of optical fiber simultaneously, the switching of visible filter and near infrared filter during for using.
Compared with prior art, iris/face of the present invention two grades of varifocal imaging camera lenses have the first lens combination, the second lens combination and the 3rd lens combination from front to back successively along optical axis direction, and the distance between them is adjustable, when being in primary importance relation, be now short Jiao's end, can be used in gathering facial image; When being in second place relation, being now focal length end, can be used in gathering iris image; The focal length of short Jiao's end is less than the focal length of focal length end, and iris/face of the present invention two grades of varifocal imaging camera lenses are applicable to wider imaging wavelength range, comprise visible light wave range (400-700nm) and near-infrared band (700-900nm).The present invention uses 3 groups of lens combination can complete the collection of face and iris image, and structure is simple, and cost is low; And zoom only needs mobile second lens combination and the 3rd lens combination, easy to use.
Iris/face of the present invention two grades of varifocal imaging camera lenses are followed successively by plano-convex lens, meniscus, plano-concave lens, biconvex lens, plano-convex lens, meniscus, plano-concave lens and biconvex lens along vertical eight lens of optical axis direction.This imaging lens, when short Jiao's end gathers facial image, has higher image quality at visible light wave range, can be used for gathering facial image clearly; When focal length end gathers iris image, at near-infrared band, there is higher image quality, distort little, can be used for the iris image (especially binocular iris image) gathering texture-rich.Image quality is high.
Therefore, iris/face of the present invention is simple with two grades of varifocal imaging lens constructions, and cost is low, easy to use, can gather high-quality face and iris image.
As a modification of the present invention, the focal length of each lens can meet: 12≤F1/Fw≤22 ,-2.5≤F2/Fw≤-1.3,0.8≤F3/Fw≤1.8,1.5≤Fw/FT≤3.5; Wherein, Fw is the focal lengths of iris/face two grades of varifocal imaging camera lenses when gathering facial image, and FT is the focal lengths of iris/face two grades of varifocal imaging camera lenses when gathering iris image, and F1 is the first lens combination focal length, F2 is the second lens combination focal length, and F3 is the 3rd lens combination focal length.
When the focal length of each lens meets above-mentioned relation, the image quality had.
Further, Fw=6mm, FT=12mm, 72mm≤F1≤132mm ,-15mm≤F2≤-7.8mm, 4.8mm≤F3≤10.8mm.
Improve as another kind of the present invention, the material of the first lens, the second lens, the 3rd lens, the 4th lens, the 5th lens, the 6th lens, the 7th lens and the 8th lens meets: 1.5≤nd≤1.8,25≤vd≤65, wherein, nd is the refractive index of lens material, and vd is the abbe number of lens material.Adopt the material of above-mentioned refractive index and abbe number can either obtain good image quality, can material cost be saved again.
Preferably, as shown in Figure 1, the diaphragm 9 for controlling light (light herein refers to visible ray and near infrared light, lower same) percent of pass is provided with between the 7th lens 7 and the 8th lens 8.Diaphragm can regulate the power of the light passed through, and can select different diaphragms under different environment.
Improve as another kind of the present invention, can all be coated with the anti-reflection film that can strengthen light penetration at the front surface of the first lens, the second lens, the 3rd lens, the 4th lens, the 5th lens, the 6th lens, the 7th lens and the 8th lens and rear surface.Anti-reflection film can strengthen the transmitance of light, can obtain iris image more clearly, can obtain facial image more clearly under poor photoenvironment with less emissive power.
Preferably, the wavelength of anti-reflection film transmitted light is 400-700nm and 700-900nm.400-700nm is visible light wave range, and strengthen the transmitance of visible ray, conveniently gather facial image, 700-900nm is near-infrared band, strengthens the transmitance of near infrared light, conveniently gathers iris image.
For further cost-saving, the material of the first lens, the second lens, the 3rd lens, the 4th lens, the 5th lens, the 6th lens, the 7th lens and the 8th lens can be glass.
With a specific embodiment, the present invention will be further elaborated below:
Embodiment one:
As shown in Figure 1, iris/the face of the present embodiment with two grades of varifocal imaging camera lenses by eight three lens cluster groups and diaphragm 9 to form, this camera lens rear is provided with imageing sensor 10, be followed successively by from front to back along optical axis direction: first lens combination 101 with positive light coke, its first lens 1 having positive light coke by a slice are formed, first lens 1 are plano-convex lens, and front surface 11 is convex surface, and rear surface 12 is plane, there is the second lens combination 102 of negative power, it is made up of the second lens 2 and the 3rd lens 3, second lens 2 have negative power, it is meniscus, and front surface 21 is convex surface, and rear surface 22 is concave surface, 3rd lens 3 have negative power, it is plano-concave lens, and front surface 31 is concave surface, rear surface 32 bit plane, there is the 3rd lens combination 103 of positive light coke, it is by the 4th lens 4, 5th lens 5, 6th lens 6, 7th lens 7, 8th lens 8 and diaphragm 9 are formed, 4th lens 4 have positive light coke, it is biconvex lens, front surface 41 is convex surface, rear surface 42 is convex surface, 5th lens 5 have positive light coke, it is plano-convex lens, front surface 51 is convex surface, rear surface 52 is plane, 6th lens 6 have positive light coke, it is meniscus, front surface 61 is convex surface, rear surface 62 is concave surface, 7th lens 7 have negative power, it is plano-concave lens, front surface 71 is plane, rear surface 72 is concave surface, 8th lens 8 have positive light coke, it is biconvex lens, front surface 81 is convex surface, rear surface 82 is convex surface, diaphragm 9 is between the 7th lens 7 and the 8th lens 8, eight lens are glass material.Imaging surface is imageing sensor face, adopts CCD or Cmos sensor.
Iris/the face of the present embodiment is applicable to wider imaging wavelength range with two grades of varifocal imaging camera lenses, comprise visible light wave range (400-700nm) and near-infrared band (700-900nm), for increasing the transmitance of light, each of lens are all coated with anti-reflection film.
Fig. 2 is the change schematic diagram of the present embodiment each lens combination when zoom, and wherein 2a is short Jiao's end, and for gathering facial image, 2b is focal length end, for gathering iris image; First lens combination 101 is fixed, the second lens combination 102 when from short Jiao's end to focal length end zoom, towards expanding and the direction at interval of the first lens combination 101, along optical axis direction, significantly away from the first lens combination 101; 3rd lens combination 103, when from short Jiao's end to focal length end zoom, towards shortening and the direction at interval of the second lens combination 102, along optical axis, significantly moves to the second lens combination 102.The present embodiment is applicable to visible light wave range (400-700nm) imaging when short Jiao's end, can be used for shooting facial image and carries out recognition of face; Be applicable to near-infrared band (700-900nm) imaging at focal length end, can be used for the binocular iris image of shooting clear, carry out iris recognition.
The concrete structure parameter of the present embodiment refers to table one, and comprise the surface type of lens face, radius-of-curvature, lens thickness, refractive index, abbe number etc., specific design specification refers to table two, comprises field angle, focal length, aperture etc.Wherein Fw=6mm, FT=12mm, F1=99mm, F2=-11.2mm, F3=8.9mm, it meets: 12≤F1/Fw≤22 ,-2.5≤F2/Fw≤-1.3,0.8≤F3/Fw≤1.8,1.5≤Fw/FT≤3.5; Wherein Fw is the focal lengths of iris/face two grades of varifocal imaging camera lenses at wide-angle side (short Jiao's end), FT is the focal lengths of iris/face two grades of varifocal imaging camera lenses at telescope end (focal length end), F1 is the first lens combination focal length, F2 is the second lens combination focal length, and F3 is the 3rd lens combination focal length.
Table one: the concrete structure parameter of embodiment one
Table two: the specific design specification of embodiment one
Fig. 3 is the optical performance curve figure of iris/face two grades of varifocal imaging camera lenses at short Jiao's end of the embodiment of the present invention, and 3A shows the distortion curve figure (%) of the present embodiment, and within the scope of full filed, distortion aberration is all in 2% scope; 3B shows the curvature of field curve map (mm) of the present embodiment, and within the scope of full filed, the curvature of field aberration of meridian ellipse and each light of sagittal surface is all less than 0.05mm; 3C shows the MTF family curve of the present embodiment, and each visual field MTF curve compares uniformity, and center and peripheral image quality difference is less, at spatial frequency 100lp/mm place mtf value all close to 0.6; As can be seen from above optical indicatrix figure, the iris/face of the present embodiment obtains good correction with two grades of varifocal imaging camera lenses at short Jiao's its astigmatism of end and distortion aberration, has excellent optical property.
Fig. 4 is the optical performance curve figure of iris/face two grades of varifocal imaging camera lenses at focal length end of the embodiment of the present invention, and 4A shows the distortion curve figure (%) of the present embodiment, and within the scope of full filed, distortion aberration is all in 0.5% scope; 4B shows the curvature of field curve map (mm) of the present embodiment, and within the scope of full filed, the curvature of field aberration of meridian ellipse and each light of sagittal surface is all less than 0.1mm; 4C shows the MTF family curve of the present embodiment, and at spatial frequency 100lp/mm place, central vision mtf value is more than 0.5, and peripheral field mtf value is more than 0.4; As can be seen from above optical indicatrix figure, the iris/face of the present embodiment obtains good correction with two grades of varifocal imaging camera lenses at its astigmatism of focal length end and distortion aberration, has excellent optical property.
On the other hand, the invention provides a kind of iris/face two grades of varifocal imaging modules, comprise above-mentioned arbitrary iris/face two grades of varifocal imaging camera lenses and be positioned at the imageing sensor 10 of this iris/face with two grades of varifocal imaging camera lens rears, imageing sensor 10 is CCD or cmos sensor.Imaging modules structure of the present invention is simple, and cost is low, easy to use, can gather high-quality face and iris image.
Again on the one hand, the invention provides a kind of iris/face two grades of zoom recognition devices, the hardware circuit comprising above-mentioned arbitrary imaging modules and be connected with this imaging modules.Recognition device structure of the present invention is simple, and cost is low, easy to use, can gather high-quality face and iris image.Recognition device of the present invention is applied to multimodal recognition, carries out the authentication of face and iris recognition simultaneously, and make apparatus structure more simple, cost is lower.
The above is the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the prerequisite not departing from principle of the present invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (10)
1. iris/face two grades of varifocal imaging camera lenses, is characterized in that, comprise successively from front to back along optical axis direction: first lens combination with positive light coke, have the second lens combination of negative power, and have the 3rd lens combination of positive light coke, wherein:
Described first lens combination comprises the first lens, and described first lens are the plano-convex lens with positive light coke, and its front surface is convex surface, and rear surface is plane;
Described second lens combination comprises the second lens and the 3rd lens from front to back successively along optical axis direction; Described second lens are the meniscus with negative power, and its front surface is convex surface, and rear surface is concave surface; Described 3rd lens are the plano-concave lens with negative power, and its front surface is concave surface, and rear surface is plane;
Described 3rd lens combination comprises the 4th lens, the 5th lens, the 6th lens, the 7th lens and the 8th lens from front to back successively along optical axis direction; Described 4th lens are the biconvex lens with positive light coke, and its front surface is convex surface, and rear surface is convex surface; Described 5th lens are the plano-convex lens with positive light coke, and its front surface is convex surface, and rear surface is plane; Described 6th lens are the meniscus with positive light coke, and its front surface is convex surface, and rear surface is concave surface; Described 7th lens are the plano-concave lens with negative power, and its front surface is plane, and rear surface is concave surface; Described 8th lens are the biconvex lens with positive light coke, and its front surface is convex surface, and rear surface is convex surface;
Described first lens combination, the second lens combination and the 3rd lens combination distance are each other adjustable, when being in primary importance relation, can be used in gathering facial image; When being in second place relation, can be used in gathering iris image; Described in when being in primary importance relation, the focal length of two grades of varifocal imaging camera lenses is less than the focal length of two grades of varifocal imaging camera lenses described in when being in second place relation.
2. iris/face according to claim 1 two grades of varifocal imaging camera lenses, is characterized in that, 12≤F1/Fw≤22 ,-2.5≤F2/Fw≤-1.3,0.8≤F3/Fw≤1.8,1.5≤Fw/FT≤3.5; Wherein, Fw is the focal lengths of described iris/face two grades of varifocal imaging camera lenses when gathering facial image, and FT is the focal lengths of described iris/face two grades of varifocal imaging camera lenses when gathering iris image, and F1 is the first lens combination focal length, F2 is the second lens combination focal length, and F3 is the 3rd lens combination focal length.
3. iris/face according to claim 1 two grades of varifocal imaging camera lenses, is characterized in that, Fw=6mm, FT=12mm, 72mm≤F1≤132mm ,-15mm≤F2≤-7.8mm, 4.8mm≤F3≤10.8mm.
4. iris/face according to claim 1 two grades of varifocal imaging camera lenses, it is characterized in that, the material of described first lens, the second lens, the 3rd lens, the 4th lens, the 5th lens, the 6th lens, the 7th lens and the 8th lens meets: 1.5≤nd≤1.8,25≤vd≤65, wherein, nd is the refractive index of lens material, and vd is the abbe number of lens material.
5. the two grades of varifocal imaging camera lenses of the iris/face according to the arbitrary claim of claim 1-4, is characterized in that, are provided with the diaphragm for controlling light percent of pass between described 7th lens and the 8th lens.
6. iris/face according to claim 5 two grades of varifocal imaging camera lenses, it is characterized in that, front surface and the rear surface of described first lens, the second lens, the 3rd lens, the 4th lens, the 5th lens, the 6th lens, the 7th lens and the 8th lens are all coated with the anti-reflection film that can strengthen light penetration.
7. iris/face according to claim 6 two grades of varifocal imaging camera lenses, is characterized in that, the wavelength of described anti-reflection film transmitted light is 400-700nm and 700-900nm.
8. iris/face according to claim 5 two grades of varifocal imaging camera lenses, is characterized in that, the material of described first lens, the second lens, the 3rd lens, the 4th lens, the 5th lens, the 6th lens, the 7th lens and the 8th lens is glass.
9. iris/face two grades of varifocal imaging modules, it is characterized in that, comprise the iris/face two grades of varifocal imaging camera lenses described in the arbitrary claim of claim 1-8 and be positioned at the imageing sensor of described iris/face with two grades of varifocal imaging camera lens rears, described imageing sensor is CCD or cmos sensor.
10. iris/face two grades of zoom recognition devices, is characterized in that, the hardware circuit comprising imaging modules according to claim 9 and be connected with described imaging modules.
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| CN109307924A (en) * | 2017-07-27 | 2019-02-05 | 先进光电科技股份有限公司 | Optical imaging system |
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| CN109782380A (en) * | 2019-03-15 | 2019-05-21 | 苏州思源科安信息技术有限公司 | A kind of iris imaging system and iris recognition mould group |
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| WO2021114242A1 (en) * | 2019-12-13 | 2021-06-17 | 诚瑞光学(常州)股份有限公司 | Camera optical lens |
| WO2021114243A1 (en) * | 2019-12-13 | 2021-06-17 | 诚瑞光学(常州)股份有限公司 | Image pickup optical camera |
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Address after: 100085, 1 floor 8, 1 Street, ten Street, Haidian District, Beijing. Patentee after: Beijing Eyes Intelligent Technology Co.,Ltd. Address before: 100085, 1 floor 8, 1 Street, ten Street, Haidian District, Beijing. Patentee before: BEIJING TECHSHINO TECHNOLOGY Co.,Ltd. |
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Effective date of registration: 20220311 Address after: 071800 Beijing Tianjin talent home (Xincheng community), West District, Xiongxian Economic Development Zone, Baoding City, Hebei Province Patentee after: BEIJING EYECOOL TECHNOLOGY Co.,Ltd. Patentee after: Beijing Eyes Intelligent Technology Co.,Ltd. Address before: 100085, 1 floor 8, 1 Street, ten Street, Haidian District, Beijing. Patentee before: Beijing Eyes Intelligent Technology Co.,Ltd. |
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Denomination of invention: Two position zoom imaging lens, imaging module and recognition device for iris / face Effective date of registration: 20220614 Granted publication date: 20170728 Pledgee: China Construction Bank Corporation Xiongxian sub branch Pledgor: BEIJING EYECOOL TECHNOLOGY Co.,Ltd. Registration number: Y2022990000332 |