CN113484995A - Large-aperture athermalized 8MP glass-plastic hybrid lens - Google Patents
Large-aperture athermalized 8MP glass-plastic hybrid lens Download PDFInfo
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- G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
- G02B13/0015—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design
- G02B13/002—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having at least one aspherical surface
- G02B13/0045—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having at least one aspherical surface having five or more lenses
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Abstract
The invention discloses a large-aperture athermalized 8MP glass-plastic hybrid lens, which defines the surface of one side of a lens, which is adjacent to an object plane, as an object side surface, and the surface of one side of the lens, which is adjacent to an image plane, as an image side surface, and sequentially comprises the following components from the object side to the image side along the optical axis of the lens: a first lens which is an aspheric plastic lens with negative focal power; a second lens which is an aspheric plastic lens with positive focal power; the third lens is a spherical glass lens with positive focal power; the fourth lens is an aspheric plastic lens with negative focal power; and the fifth lens is an aspheric plastic lens with positive focal power. The large-aperture athermalized 8MP glass-plastic hybrid lens adopts 1 piece of spherical glass and 4 pieces of aspheric plastic to be mixed and combined, can be matched with 8MP and 1/2.8 inch chips, realizes 24-hour all-weather high-definition monitoring, realizes clear pictures at high temperature of plus 80 ℃ and low temperature of minus 40 ℃, is insensitive to lenses in manufacturability, and is simple and easy to manufacture the lens surface type.
Description
Technical Field
The invention relates to the technical field of optical imaging, in particular to a large-aperture athermalized 8MP glass-plastic hybrid lens.
Background
With the continuous improvement of safety consciousness of people, the monitoring lens is used as the 'eyes' of human beings, plays more and more important roles in the aspects of machine vision, artificial intelligence, criminal investigation monitoring, unmanned driving and the like, and promotes the development of the field of security monitoring. In recent years, many series of products have been introduced for monitoring lenses for different purposes of use or environments, people pursue high performance of the lenses and also pursue minimization of cost of the lenses, and monitoring cameras with high definition pixels and low cost gradually occupy the market in the future. At present, the lens in the market has the problems of poor image quality and high cost, and the performance and the cost of the lens are to be improved.
The object of the invention is therefore: aiming at the defects of the prior art, the invention provides a large-aperture athermalized 8MP glass-plastic hybrid lens which has the advantages of small volume, high pixel and low cost compared with the existing lenses on the market, the invention adopts the mixed combination of 1 piece of spherical glass and 4 pieces of non-spherical plastic, can be matched with 8MP and 1/2.8 inch chips, realizes 24-hour all-weather high-definition monitoring, realizes clear pictures at high temperature plus 80 ℃ and low temperature minus 40 ℃, has insensitivity of each lens in manufacturability, is simple and easy to manufacture the lens surface type, and has higher cost performance.
Disclosure of Invention
The invention aims to provide a large-aperture athermalized 8MP glass-plastic hybrid lens to solve the problems of poor image quality and high cost of the existing lenses in the market, which are proposed in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: a large-aperture athermalized 8MP glass-plastic hybrid lens defines the surface of one side of a lens, which is adjacent to an object plane, as an object side surface and the surface of one side of the lens, which is adjacent to an image plane, as an image side surface, and sequentially comprises the following components from the object side to the image side along the optical axis of the lens: the first lens is an aspheric plastic lens with negative focal power, and the object side surface of the first lens is a convex surface, and the image side surface of the first lens is a concave surface; the second lens is an aspheric plastic lens with positive focal power, and the object side surface of the second lens is a concave surface while the image side surface is a convex surface; the third lens is a spherical glass lens with positive focal power, and the object side surface of the third lens is a convex surface, and the image side surface of the third lens is a convex surface; the fourth lens is an aspheric plastic lens with negative focal power, and the object side surface of the fourth lens is a convex surface, and the image side surface of the fourth lens is a concave surface; the fifth lens is an aspheric plastic lens with positive focal power, and the object side surface of the fifth lens is a convex surface, and the image side surface of the fifth lens is a convex surface; between the second lens and the third lens is an aperture stop.
The ratio of each lens focal length of the large-aperture athermalized 8MP glass-plastic hybrid lens to the total focal length of the system meets the following conditions:
1.65≤|f1/f|≤1.77；
3.49≤|f2/f|≤5.78；
1.36≤|f3/f|≤2.41；
0.89≤|f4/f|≤1.65；
0.92≤|f5/f|≤1.60；
in the relation, "f" is the focal length of the large-aperture athermalized 8MP glass-plastic hybrid lens optical system, "f 1" is the focal length of the first lens, "f 2" is the focal length of the second lens, and so on.
The focal length, the refractive index and the curvature radius of the first lens to the fifth lens of the lens respectively meet the following conditions:
-9.65<f1<-5.24 ，1.50<ND1<1.55，+4.33<R11<+7.16，+1.85<R12<+2.10；
+17.39<f2<+19.75，1.60<ND2<1.66，-7.78<R21<-7.36，-5.47<R22<-5.23；
+7.50<f3<+7.84，1.47<ND3<1.60，+10.80<R31<+12.27，-7.10<R32<-6.84；
-5.12<f4<-4.96，1.60<ND4<1.66，+36.69<R41<+45.40，+2.96<R42<+3.00；
+4.94<f5<+5.12，1.50<ND5<1.55，+3.86<R51<+3.90，-7.34<R52<-6.99；
in the above conditions, "f 1" is a focal length of the first lens, "ND 1" is a refractive index of the first lens, "R11, R12" is front and rear surface curvature radii of the first lens, "f 2" is a focal length of the second lens, "ND 2" is a refractive index of the second lens, "R21, R22" is front and rear surface curvature radii of the second lens, "f 3" is a focal length of the third lens, "ND 3" is a refractive index of the third lens, "R31, R32" is a front and rear surface curvature radius of the third lens, "f 4" is a focal length of the fourth lens, "ND 4" is a refractive index of the fourth lens, "R41, R42" is a front and rear surface curvature radius of the fourth lens, "f 5" is a focal length of the fifth lens, "ND 5" is a refractive index of the fifth lens, "R51, R52" is a front and a rear surface curvature radius of the fifth lens, and "is indicated by a negative sign and the like.
DFOV/TTL≥2.35；
1.21≤OBFL/EFL≤2.17；
In the relational expression, the focal length of the large-aperture athermalized 8MP glass-plastic hybrid lens optical system is EFL; the total length of the large-aperture athermalized 8MP glass-plastic hybrid lens optical system is TTL; the optical rear intercept of the lens system is OBFL, namely the distance from the point, closest to the image surface, of the image side surface of the fifth lens to the image surface; the field angle of the large-aperture athermalized 8MP glass-plastic hybrid lens system is DFOV.
The aperture of the large-aperture athermalized 8MP glass-plastic hybrid lens is F #, the condition that the F # is more than or equal to 1.40 and is less than or equal to 1.65 is met, the total focal length of the large-aperture athermalized 8MP glass-plastic hybrid lens is F, the condition that the F is more than or equal to 3.11 and is less than or equal to 5.55 is met, the total length of the large-aperture athermalized 8MP glass-plastic hybrid lens optical system is TTL, and the condition that the TTL is less than or equal to 22.5mm is met.
The aspheric surfaces of the first lens, the second lens, the fourth lens and the fifth lens of the optical lens can be defined by the following equation of even aspheric surfaces:
in the formula, k is a conic coefficient of a quadric surface,
the height of the lens, c the curvature of the lens, and A-G the coefficients of the 4 th, 6 th, 8 th, 10 th, 12 th, 14 th and 16 th order of the aspheric polynomial.
The first lens and the second lens of the large-aperture athermalized 8MP glass-plastic hybrid lens have a larger distance, and the minimum interval AC1 on the central axis is more than or equal to 3.54 mm; the third lens, the fourth lens and the fifth lens are relatively close, and the maximum interval AC3 on the central axes of the third lens and the fourth lens is less than or equal to 0.08 mm.
Compared with the prior art, the invention has the beneficial effects that: the large-aperture athermalized 8MP glass-plastic hybrid lens adopts 1 piece of spherical glass and 4 pieces of aspheric plastic to be mixed and combined, under the condition of achieving the same quality in the industry, each lens is insensitive, the lens surface type is simple and easy to manufacture, the processing cost is relatively low on the market, the large-aperture athermalized 8MP glass-plastic hybrid lens has the characteristics of high cost performance, small volume, light weight, good performance and low cost, the large-aperture athermalized 8MP glass-plastic hybrid lens can be matched with 8MP and 1/2.8 inch chips through reasonable lens material selection, focal power distribution and optical design optimization, all-weather high-definition monitoring for 24 hours is realized, and the photographed image is clear at high temperature plus 80 ℃ and low temperature minus 40 ℃.
Drawings
FIG. 1 is a schematic diagram of an optical structure according to the present invention;
FIG. 2 is a schematic diagram of the optical path structure of the present invention;
FIG. 3 is a defocus curve of 0.435-0.656um visible light at room temperature and 20 deg.C;
FIG. 4 is a low temperature-40 ℃ defocus plot of 0.435-0.656um visible light in accordance with the present invention;
FIG. 5 is a high temperature +80 ℃ defocus plot of 0.435-0.656um visible light;
FIG. 6 is a field curvature of 0.546um for visible light in accordance with the present invention;
FIG. 7 is a distortion diagram of visible light of 0.546um according to the present invention;
FIG. 8 is a graph of relative illumination of 0.546um for visible light according to the present invention;
FIG. 9 is a schematic representation of data in order from an object side to an image side according to the present disclosure;
FIG. 10 is a table illustrating the coefficients of the aspheric surfaces of the optical surfaces of the present invention;
in fig. 1: 1. a first lens; 2. a second lens; 3. a third lens; 4. a fourth lens; 5. a fifth lens; 6. an aperture diaphragm; 7. a red filter; 8. protecting glass; 9. an image capturing element.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 10, an embodiment of the present invention provides a technical solution: a large-aperture athermalized 8MP glass-plastic hybrid lens, wherein a surface of a lens adjacent to an object plane is an object side surface, and a surface of the lens adjacent to an image plane is an image side surface, and as shown in fig. 1, the hybrid lens sequentially comprises, from an object side to an image side along an optical axis of the lens: a first aspheric plastic lens 1 with negative focal power, the object side surface of which is convex and the image side surface of which is concave; a second aspherical plastic lens 2 having a positive refractive power, which has a concave object-side surface and a convex image-side surface; the third spherical glass lens 3 with positive focal power has a convex object-side surface and a convex image-side surface; a fourth aspherical plastic lens 4 having a negative refractive power, the object-side surface of which is convex and the image-side surface of which is concave; a fifth aspherical plastic lens 5 having a positive refractive power, which has a convex object-side surface and a convex image-side surface; between the second lens 2 and the third lens 3 is an aperture stop 6.
In order to enable an optical system to have better performance, in the design process, lens materials are reasonably selected, focal lengths of all lenses are reasonably distributed, the optical system is reasonably optimized, performance of the optical system is finally optimized, the imaging quality of the optical system is affected by the existence of aberration of the optical system generally, aberration correction is the key point of the optimized optical system, and various methods for correcting the aberration are provided, for example, lenses with different refractive indexes and larger abbe numbers are selected to be matched for use, chromatic aberration and spherical aberration can be eliminated to a certain degree, and the focal lengths and shapes of all lenses are reasonably distributed and optimized, and the aberration of the system can also be corrected. Referring to fig. 1, in the embodiment of the present invention, the focal length of the first lens 1 is f1, the focal length of the second lens 2 is f2, the focal length of the third lens 3 is f3, the focal length of the fourth lens 4 is f4, the focal length of the fifth lens 5 is f5, the focal length of the entire lens is f, and the ratio of the total focal length of each lens to the total focal length of the system satisfies the following conditions:
1.65≤|f1/f|≤1.77；
3.49≤|f2/f|≤5.78；
1.36≤|f3/f|≤2.41；
0.89≤|f4/f|≤1.65；
0.92≤|f5/f|≤1.60；
the angle of field of the embodiment of the invention is larger than 105.4 degrees, so that the first lens adopts a lens with a meniscus negative focal power with a convex surface facing to an object space, the function of the lens is to quickly converge light rays, the abbe numbers of the first lens 1, the third lens 3 and the fifth lens 5 are larger than 55.7, the abbe numbers of the second lens 2 and the fourth lens 4 are smaller than 24, the matching can reduce chromatic aberration, and in consideration of the problems of aberration and balance temperature drift of an optical system, the focal length, the material and the R value of each lens respectively meet the following conditions:
-9.65<f1<-5.24 ，1.50<ND1<1.55，+4.33<R11<+7.16，+1.85<R12<+2.10；
+17.39<f2<+19.75，1.60<ND2<1.66，-7.78<R21<-7.36，-5.47<R22<-5.23；
+7.50<f3<+7.84，1.47<ND3<1.60，+10.80<R31<+12.27，-7.10<R32<-6.84；
-5.12<f4<-4.96，1.60<ND4<1.66，+36.69<R41<+45.40，+2.96<R42<+3.00；
+4.94<f5<+5.12，1.50<ND5<1.55，+3.86<R51<+3.90，-7.34<R52<-6.99；
in the above conditions, "f 1" is a focal length of the first lens 1, "ND 1" is a refractive index of the first lens 1, "R11, R12" is front and rear surface curvature radii of the first lens 1, "f 2" is a focal length of the second lens 2, "ND 2" is a refractive index of the second lens 2, "R21, R22" is a front and rear surface curvature radius of the second lens 2, "f 3" is a focal length of the third lens 3, "ND 3" is a refractive index of the third lens 3, "R31, R32" is a front and rear surface curvature radius of the third lens 3, "f 4" is a focal length of the fourth lens 4, "ND 4" is a refractive index of the fourth lens 4, "R41, R42" is a front and rear surface curvature radius of the fourth lens 4, "f 5" is a focal length of the fifth lens 5, "ND 5" is a refractive index of the fifth lens 5, "R51, R52" is a front and rear surface curvature radius of the fifth lens 5, "-" shows a negative curvature radius, and so on.
The focal length of the integral optical system is EFL, the total optical length of the lens system is TTL, the optical back intercept of the lens system is OBFL, namely the distance from the point, closest to the image surface, of the image side surface of the fifth lens to the image surface, the field angle of the lens system is DFOV, and the following relations are satisfied:
DFOV/TTL≥2.35；
1.21≤OBFL/EFL≤2.17；
the aperture of the embodiment of the invention is F #, and satisfies that F # is more than or equal to 1.40 and less than or equal to 1.65, the focal length of the optical system is F, satisfies that F is more than or equal to 3.11 and less than or equal to 5.55, the total optical length of the lens system is TTL, and satisfies that TTL is less than or equal to 22.5 mm.
The first lens 1 and the second lens 2 of the embodiment of the invention have larger distance, and the minimum distance on the central axis is more than or equal to 3.54 mm; the third lens 3, the fourth lens 4 and the fifth lens 5 are relatively close, and the maximum interval AC3 on the central axes of the third lens 3 and the fourth lens 4 is less than or equal to 0.08 mm.
Referring to fig. 1 and fig. 2, which are respectively an optical structure diagram and an optical path structure diagram of an embodiment of the present invention, the third lens 3 is a glass spherical surface, the first lens 1, the second lens 2, the fourth lens 4 and the fifth lens 5 are plastic aspheric surfaces, the total focal length of the system is 4.0mm, and the aperture value is 1.6.
In fig. 9, the Number of optical surfaces (Surface Number) in order from the object side to the image side, the radius of curvature R (unit: mm) of each lens, the center thickness d (unit: mm) of each lens, the refractive index (ND) and abbe constant (VD) of each lens, and the aspheric K value (conc) of each lens are listed.
In fig. 9, the surface numbers are numbered according to the surface order of the respective lenses, where "1" represents the front surface of the first lens 1, "2" represents the rear surface of the first lens 1, and so on; the radius of curvature represents the degree of curvature of the lens surface, positive values represent the surface curving to the image plane side, and negative values represent the surface curving to the object plane side, wherein "Infinity" represents the surface being planar; the thickness represents the central axial distance from the current surface to the next surface, the refractive index represents the deflection capability of the current lens material to light rays, and the Abbe number represents the dispersion characteristic of the current lens material to the light rays; the K value represents the magnitude of the best fitting conic coefficient for the aspheric surface.
The aspheric surfaces of the first lens element 1, the second lens element 2, the fourth lens element 4 and the fifth lens element 5 according to the embodiment of the present invention can be defined by the following equation of even aspheric surfaces:
in the formula, k is conic coefficient of the quadric surface,
the height of the lens, c the curvature of the lens, and A-G the coefficients of the 4 th, 6 th, 8 th, 10 th, 12 th, 14 th and 16 th order of the aspheric polynomial.
The coefficients of the aspheric surfaces of the optical surfaces are listed in fig. 10:
in summary, the following steps: the large-aperture athermalized 8MP glass-plastic hybrid lens adopts 1 piece of spherical glass and 4 pieces of aspheric plastic to be mixed and combined, under the condition of achieving the same quality in the industry, each lens is insensitive, the lens surface type is simple and easy to manufacture, the processing cost is relatively low on the market, the large-aperture athermalized 8MP glass-plastic hybrid lens has the characteristics of high cost performance, small volume, light weight, good performance and low cost, the large-aperture athermalized 8MP glass-plastic hybrid lens can be matched with 8MP and 1/2.8 inch chips through reasonable lens material selection, focal power distribution and optical design optimization, all-weather high-definition monitoring for 24 hours is realized, and the photographed image is clear at high temperature plus 80 ℃ and low temperature minus 40 ℃.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a big light ring does not have 8MP glass of thermalization and moulds compound camera lens which characterized in that: defining the surface of the lens adjacent to the object plane as an object side surface, and the surface of the lens adjacent to the image plane as an image side surface, sequentially from the object side to the image side along the optical axis of the lens, comprising:
the first lens (1) is an aspheric plastic lens with negative focal power, and the object side surface of the first lens is a convex surface while the image side surface of the first lens is a concave surface;
the second lens (2) is an aspheric plastic lens with positive focal power, and the object side surface of the second lens is a concave surface while the image side surface is a convex surface;
the third lens (3) is a spherical glass lens with positive focal power, and the object side surface of the third lens is a convex surface while the image side surface of the third lens is a convex surface;
the fourth lens (4) is an aspheric plastic lens with negative focal power, and the object side surface of the fourth lens is a convex surface while the image side surface of the fourth lens is a concave surface;
a fifth lens (5) which is an aspheric plastic lens with positive focal power, and the object side surface of the fifth lens is a convex surface, and the image side surface of the fifth lens is a convex surface;
an aperture stop (6);
the red filter (7), the red filter (7) is made of H-K9L;
a cover glass (8) integrated on a sensor (image sensor);
an image pickup element (9);
the ratio of each lens focal length of the large-aperture athermalized 8MP glass-plastic hybrid lens to the total focal length of the system meets the following conditions:
1.65≤|f1/f|≤1.77；
3.49≤|f2/f|≤5.78；
1.36≤|f3/f|≤2.41；
0.89≤|f4/f|≤1.65；
0.92≤|f5/f|≤1.60；
in the relation, "f" is the focal length of the large-aperture athermalized 8MP glass-plastic hybrid lens optical system, "f 1" is the focal length of the first lens (1), "f 2" is the focal length of the second lens (2), "f 3" is the focal length of the third lens (3), "f 4" is the focal length of the fourth lens (4), and "f 5" is the focal length of the fifth lens (5).
2. The large-aperture athermalized 8MP glass-plastic hybrid lens as claimed in claim 1, wherein: the focal length, refractive index and curvature radius of the first lens (1) to the fifth lens (5) respectively satisfy the following conditions:
-9.65<f1<-5.24 ，1.50<ND1<1.55，+4.33<R11<+7.16，+1.85<R12<+2.10；
+17.39<f2<+19.75，1.60<ND2<1.66，-7.78<R21<-7.36，-5.47<R22<-5.23；
+7.50<f3<+7.84，1.47<ND3<1.60，+10.80<R31<+12.27，-7.10<R32<-6.84；
-5.12<f4<-4.96，1.60<ND4<1.66，+36.69<R41<+45.40，+2.96<R42<+3.00；
+4.94<f5<+5.12，1.50<ND5<1.55，+3.86<R51<+3.90，-7.34<R52<-6.99；
in the above conditions, "f 1" is the focal length of the first lens (1), "ND 1" is the refractive index of the first lens (1), "R11, R12" is the front and rear surface curvature radius of the first lens (1), "f 2" is the focal length of the second lens (2), "ND 2" is the refractive index of the second lens (2), "R21, R22" is the front and rear surface curvature radius of the second lens (2), "f 3" is the focal length of the third lens (3), "ND 3" is the refractive index of the third lens (3), "R31, R32" is the front and rear surface curvature radius of the third lens (3), "f 4" is the focal length of the fourth lens (4), "ND 4" is the refractive index of the fourth lens (4), "R41, R42" is the front and rear surface curvature radius of the fourth lens (4), "f 6" is the focal length of the fifth lens (5), "ND 5" is the front and R7375), "R51, R365" is the front and rear surface curvature radius of the fifth lens (51), the "-" number indicates a negative direction, and so on.
3. The large-aperture athermalized 8MP glass-plastic hybrid lens as claimed in claim 2, wherein:
DFOV/TTL≥2.35；
1.21≤OBFL/EFL≤2.17；
in the relational expression, the focal length of the large-aperture athermalized 8MP glass-plastic hybrid lens optical system is EFL; the total length of the large-aperture athermalized 8MP glass-plastic hybrid lens optical system is TTL; the optical rear intercept of the lens system is OBFL, namely the distance from one point, closest to the image surface, of the image side surface of the fifth lens (5) to the image surface; the field angle of the large-aperture athermalized 8MP glass-plastic hybrid lens system is DFOV.
4. The large-aperture athermalized 8MP glass-plastic hybrid lens as claimed in claim 2, wherein: the aperture of the large-aperture athermalized 8MP glass-plastic hybrid lens is F #, the condition that the F # is more than or equal to 1.40 and is less than or equal to 1.65 is met, the total focal length of the large-aperture athermalized 8MP glass-plastic hybrid lens is F, the condition that the F is more than or equal to 3.11 and is less than or equal to 5.55 is met, the total length of the large-aperture athermalized 8MP glass-plastic hybrid lens optical system is TTL, and the condition that the TTL is less than or equal to 22.5mm is met.
5. The large-aperture athermalized 8MP glass-plastic hybrid lens as claimed in claim 1, wherein: the aspheric surfaces of the first lens (1), the second lens (2), the fourth lens (4) and the fifth lens (5) can be defined by the following equation of even aspheric surfaces:
in the formula, k is a conic coefficient of a quadric surface,
the height of the lens, c the curvature of the lens, and A-G the coefficients of the 4 th, 6 th, 8 th, 10 th, 12 th, 14 th and 16 th order of the aspheric polynomial.
6. The large-aperture athermalized 8MP glass-plastic hybrid lens as claimed in claim 1, wherein: the distance between the first lens (1) and the second lens (2) is larger, and the minimum distance on the central axis is more than or equal to 3.54 mm; the third lens (3), the fourth lens (4) and the fifth lens (5) are relatively close, and the maximum interval AC3 on the central axes of the third lens (3) and the fourth lens (4) is not more than 0.08 mm.
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| CN114355560A (en) * | 2021-12-29 | 2022-04-15 | 福建福光股份有限公司 | High-definition optical lens |
| CN114355560B (en) * | 2021-12-29 | 2024-03-15 | 福建福光股份有限公司 | High-definition optical lens |
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