CN105700117A - Optical imaging system - Google Patents
Optical imaging system Download PDFInfo
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- CN105700117A CN105700117A CN201610265287.XA CN201610265287A CN105700117A CN 105700117 A CN105700117 A CN 105700117A CN 201610265287 A CN201610265287 A CN 201610265287A CN 105700117 A CN105700117 A CN 105700117A
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- 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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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
- G02B13/0055—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras employing a special optical element
- G02B13/006—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras employing a special optical element at least one element being a compound optical element, e.g. cemented elements
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/06—Panoramic objectives; So-called "sky lenses" including panoramic objectives having reflecting surfaces
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/18—Optical objectives specially designed for the purposes specified below with lenses having one or more non-spherical faces, e.g. for reducing geometrical aberration
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Abstract
The invention discloses an optical imaging system comprising a first lens, a second lens, a third lens, a fourth lens, a diaphragm, a fifth lens, a sixth lens, a seventh lens and an eighth lens. The first lens is a negative lens, and the two surfaces of the first lens are a hyperbolic aspheric surface and an elliptical aspheric surface respectively. The second lens is a positive lens, and the two surfaces of the second lens are spherical surfaces. The third lens is a negative lens, and the third lens is a biconcave lens. The fourth lens is a positive lens, and the fourth lens is a biconvex lens. The fifth lens is a negative lens, and the fifth lens is a biconcave lens. The sixth lens is a positive lens, and the sixth lens is a biconvex lens. The seventh lens is a positive lens, and the two surfaces of the seventh lens are an oblate aspheric surface and a hyperbolic aspheric surface respectively. The eighth lens is a positive lens, and the two surfaces of the eighth lens are hyperbolic aspheric surfaces. The optical imaging system is large in field of view, high in image quality and high in resolution.
Description
[technical field]
The present invention relates to a kind of optical imaging system。
[background technology]
Along with design level, the raising manufacturing process technology, digital camera is also constantly little towards volume, lightweight and high performance direction is developed。There are some drawbacks in the micro-4/3 system camera lens of digital camera in the market, most volume is big, visual field is little, surrounding visual field resolution is low, it is few to obtain quantity of information, distorts also corresponding relatively big to aberration, and shooting picture can not present reality sight authentic and validly。
Therefore, the present invention researchs and proposes for above the deficiencies in the prior art just。
[summary of the invention]
The present invention seeks to overcome the deficiencies in the prior art, a kind of high picture height picture element optical imaging system is provided, 8 lens of this optical imaging system adopt spherical lens to be combined with non-spherical lens, achieve big visual field, high picture element, high-resolution, large aperture imaging, and make whole optical imaging system compact conformation, it is to avoid the spherical aberration that the whole spherical lens of employing produces。This optical imaging system is applicable to the shooting to photographic works such as portrait, landscape and humane essays of micro-one camera, it may also be used for unmanned plane such as is taken photo by plane at the field, thus effectively improving the broadness of this optical imaging system range of application。
The present invention is achieved by the following technical solutions:
A kind of optical imaging system, it is characterised in that: it is sequentially provided with from thing side to image side:
First lens 1, the first described lens 1 are minus lens, and the first described lens 1 towards the one side of thing side be hyperbola aspheric surface, one side towards image side be oval aspheric surface；
Second lens 2, the second described lens 2 are plus lens, and the second described lens 2 one side towards thing side and the one side towards image side are sphere；
3rd lens 3, the 3rd described lens 3 are minus lens, and the 3rd described lens 3 are biconcave lens；
4th lens 4, the 4th described lens 4 are plus lens, and the 4th described lens 4 are biconvex lens；
Diaphragm 11；
5th lens 5, the 5th described lens 5 are minus lens, and the 5th described lens 5 are biconcave lens；
6th lens 6, the 6th described lens 6 are plus lens, and the 6th described lens 6 are biconvex lens；
7th lens 7, the 7th described lens 7 are plus lens, and the 7th described lens 7 are oblate aspheric surface towards the one side of thing side, are hyperbola aspheric surface towards the one side of image side；
8th lens 8, the 8th described lens 8 are plus lens, and the 8th described lens 8 are hyperbola aspheric surface towards the surface of thing side and image side；
Optical filter 9；
Sensitive chip 10。
Optical imaging system as above, it is characterised in that: first described lens the 1, second lens the 2, the 3rd lens the 3, the 4th lens the 4, the 5th lens the 5, the 6th lens the 6, the 7th lens 7 and the focal length respectively f of the 8th lens 81、f2、f3、f4、f5、f6、f7And f8, and meet following expression formula :-4 < f1/f2< 0 ,-4 < f3/f4<-1 ,-4 < f5/f6< 0,0 < f7/f8< 8；First described lens the 1, second lens the 2, the 3rd lens the 3, the 4th lens the 4, the 5th lens the 5, the 6th lens the 6, the 7th lens 7 and the abbe number respectively vd of the 8th lens 81、vd2、vd3、vd4、vd5、vd6、vd7And vd8, and meet following expression formula: vd1> 45, vd4> 45, vd6> 45, vd8> 45, vd2< 40, vd3< 40, vd5< 40, vd7< 40,40 < (vd1-vd2) < 55,45 < (vd8-vd7) < 60。
Optical imaging system as above, it is characterised in that: the refractive index nd of the first described lens 11Meet following expression: 1.4 < nd1< 1.7；The abbe number of the first described lens 1 is vd1Meet following expression: 70 < vd1<95。
Optical imaging system as above, it is characterised in that: the refractive index nd of the second described lens 22Meet following expression: 1.7 < nd2< 2.0, the abbe number of the second described lens 2 is vd2Meet following expression: 19 < vd2<35。
Optical imaging system as above, it is characterised in that: the 3rd described lens 3 and the 4th lens 4 are adhesively-bonded together to form balsaming lens and the refractive index nd of the 3rd described lens 33With abbe number vd3Meet following expression respectively: 1.5 < nd3< 1.8,25 < vd3< 40；The refractive index nd of the 4th described lens 44With abbe number vd4Meet following expression respectively: 1.5 < nd4< 1.8,45 < vd4<60。
Optical imaging system as above, it is characterised in that: the 5th described lens 5 and the 6th lens 6 are adhesively-bonded together to form balsaming lens and the refractive index nd of the 5th described lens 55With abbe number vd5Meet following expression respectively: 1.5 < nd5< 1.8,20 < vd5< 35；The refractive index nd of the 6th described lens 66With abbe number vd6Meet following expression respectively: 1.5 < nd6< 1.8,45 < vd6<60。
Optical imaging system as above, it is characterised in that: the refractive index nd of the 7th described lens 77Meet following expression: 1.9 < nd7< 2.2；The abbe number of the 7th described lens 7 is vd7Meet following expression: 15 < vd7<30。
Optical imaging system as above, it is characterised in that: the refractive index nd of the 8th described lens 88Meet following expression: 1.5 < nd8< 1.8；The abbe number of the 8th described lens 8 is vd8Meet following expression: 70 < vd8<90。
Optical imaging system as above, it is characterized in that: described second lens the 2, the 3rd lens the 3, the 4th lens the 4, the 5th lens the 5, the 6th lens 6 are spherical lens, and the aspherical surface shape of described first lens the 1, the 7th lens 7 and the 8th lens 8 meets equation:In formula, parameter c is the curvature corresponding to radius, and y is that its unit of radial coordinate is identical with length of lens unit, and k is circular cone whose conic coefficient；When k-factor is less than-1, the face sigmoid curves of lens is hyperbola, and when k-factor is equal to-1, the face sigmoid curves of lens is parabola；When k-factor is between-1 to 0, the face sigmoid curves of lens is oval, and when k-factor is equal to 0, the face sigmoid curves of lens is circular, and when k-factor is more than 0, the face sigmoid curves of lens is oblate；α1To α8Represent the coefficient corresponding to each radial coordinate respectively。
Compared with prior art, the present invention has the following advantages:
1, the image planes imagewise uniform of the present invention, brightness high, aperture big (F-number reaches F2.4)。
2, the present invention adopts two groups of cemented doublets so that the color of optical imaging system is clearly demarcated, and color reducibility is Well-recovered with image planes。
3, first lens of the present invention, the 7th lens and the 8th lens all adopt aspheric surface, be conducive to the correction of aberration, the aberration of reduction system and distortion, improve the picture element of whole visual field, so that the resolution of this optical imaging system, transmitance, color reducibility are all significantly improved, resolution is up to 16M (16,000,000 pixel)。
4, each lens reasonable disposition of present invention combination, solve and under big visual field, high picture, be difficult to high-resolution and a difficult problem for low distortion, there is structure and the profile of miniaturization and lightness simultaneously, full figure can be made when overall length only has 45mm up to 21.6mm。
5, the field of view angle of the present invention reaches 84 degree, and its temperature drift scope is in-20 DEG C～80 DEG C, and performance is sufficiently stable and substantially without again focusing。
6, present invention distortion under full filed is 9%, and aberration control, in smaller scope, meets digital camera and takes photo by plane to the requirement distorted。
[accompanying drawing explanation]
Fig. 1 is schematic diagram of the present invention；
Fig. 2 is light path schematic diagram of the present invention。
[detailed description of the invention]
Below in conjunction with accompanying drawing, the invention will be further described:
A kind of optical imaging system, is sequentially provided with from thing side to image side:
First lens 1, the first described lens 1 are minus lens, and the first described lens 1 towards the one side of thing side be hyperbola aspheric surface, one side towards image side be oval aspheric surface；
Second lens 2, the second described lens 2 are plus lens, and the second described lens 2 one side towards thing side and the one side towards image side are sphere；
3rd lens 3, the 3rd described lens 3 are minus lens, and the 3rd described lens 3 are biconcave lens；
4th lens 4, the 4th described lens 4 are plus lens, and the 4th described lens 4 are biconvex lens；
Diaphragm 11；
5th lens 5, the 5th described lens 5 are minus lens, and the 5th described lens 5 are biconcave lens；
6th lens 6, the 6th described lens 6 are plus lens, and the 6th described lens 6 are biconvex lens；
7th lens 7, the 7th described lens 7 are plus lens, and the 7th described lens 7 are oblate aspheric surface towards the one side of thing side, are hyperbola aspheric surface towards the one side of image side；
8th lens 8, the 8th described lens 8 are plus lens, and the 8th described lens 8 are hyperbola aspheric surface towards the surface of thing side and image side；
Optical filter 9；
Sensitive chip 10。
First lens 1 are negative meniscus, astigmatism bending and central aberration can be corrected, and the 6th lens the 6, the 7th lens the 7, the 8th these three pieces of plus lens of lens 8, make the image space main face forward shift of optical system, thus being greatly shortened optical imaging system length, and the second lens 2 and the 4th lens 4 are plus lens, 3rd lens 3 and the 5th lens 5 are minus lens, these positive and negative lens be implemented in combination with big visual field, high picture, high picture element, large aperture imaging, it is possible to the field such as take photo by plane for micro-one camera and unmanned plane。In practice, adopt optical imaging system of the present invention camera lens can this camera lens adopt inversion dolly-out, dolly-back type design, namely adopt anti-structure of looking in the distance, F-number reaches F2.4, for instance, the micro-4/3 system camera lens of digital camera of 12mmF2.4。
It is provided with optical filter 9 towards the side of image side at the 8th described lens 8; not only imaging CMOS sensitive chip there is certain protective effect; a part of light can also be filtered in lens imaging process to reduce veiling glare simultaneously; thus keeping lens imaging simultaneously clearly, promoting the sharpness of image and the reproducibility of color。Being provided with diaphragm 11 between described the 4th lens 4 and the 5th lens 5, the perforate size that therefore can directly utilize aperture controls light-inletting quantity so that imaging picture is overall uniformly, brightness is high。
First described lens the 1, second lens the 2, the 3rd lens the 3, the 4th lens the 4, the 5th lens the 5, the 6th lens the 6, the 7th lens 7 and the focal length respectively f of the 8th lens 81、f2、f3、f4、f5、f6、f7And f8, and meet following expression formula :-4 < f1/f2< 0 ,-4 < f3/f4<-1 ,-4 < f5/f6< 0,0 < f7/f8< 8；First described lens the 1, second lens the 2, the 3rd lens the 3, the 4th lens the 4, the 5th lens the 5, the 6th lens the 6, the 7th lens 7 and the abbe number respectively vd of the 8th lens 81、vd2、vd3、vd4、vd5、vd6、vd7And vd8, and meet following expression formula: vd1> 45, vd4> 45, vd6> 45, vd8> 45, vd2< 40, vd3< 40, vd5< 40, vd7< 40,40 < (vd1-vd2) < 55,45 < (vd8-vd7) < 60。
The refractive index nd of the first described lens 11Meet following expression: 1.4 < nd1< 1.7；The abbe number of the first described lens 1 is vd1Meet following expression: 70 < vd1< 95。The material of the first lens 1 adopts optical glass and its refractive index nd1With abbe number vd1Meeting above-mentioned expression formula, it is possible to control thing side angle of incidence of light well and reduce image deformation, thus realizing big visual field, high picture, high picture element, improving the optical property of optical imaging system。
The refractive index nd of the second described lens 22Meet following expression: 1.7 < nd2< 2.0, the abbe number of the second described lens 2 is vd2Meet following expression: 19 < vd2< 35。The material of the second lens 2 adopts optical glass and its refractive index nd2With abbe number vd2Meet above-mentioned expression formula, it is possible to control light change in refraction angle between each lens well, improve the optical property of optical imaging system。
The 3rd described lens 3 and the 4th lens 4 are adhesively-bonded together to form balsaming lens and the refractive index nd of the 3rd described lens 33With abbe number vd3Meet following expression respectively: 1.5 < nd3< 1.8,25 < vd3< 40；The refractive index nd of the 4th described lens 44With abbe number vd4Meet following expression respectively: 1.5 < nd4< 1.8,45 < vd4< 60。The material of the 3rd lens 3 and the 4th lens 4 adopts glass material, the refractive index nd of the 3rd lens 33With abbe number vd3And the 4th refractive index nd of lens 44With abbe number vd4Meet above several expression formulas respectively, thus the axial chromatic aberration that optical imaging system is produced well compensates, make the picture element of optical imaging system be significantly improved。
The 5th described lens 5 and the 6th lens 6 are adhesively-bonded together to form balsaming lens and the refractive index nd of the 5th described lens 55With abbe number vd5Meet following expression respectively: 1.5 < nd5< 1.8,20 < vd5< 35；The refractive index nd of the 6th described lens 66With abbe number vd6Meet following expression respectively: 1.5 < nd6< 1.8,45 < vd6< 60。The material of the 5th lens 5 and the 6th lens 6 adopts glass material, the refractive index nd of the 5th lens 55With abbe number vd5And the 6th refractive index nd of lens 66With abbe number vd6Meet above several expression formulas respectively, thus the axial chromatic aberration that optical imaging system is produced well compensates, make the picture element of optical imaging system be significantly improved
The refractive index nd of the 7th described lens 77Meet following expression: 1.9 < nd7< 2.2；The abbe number of the 7th described lens 7 is vd7Meet following expression: 15 < vd7< 30。The material of the 7th described lens 7 adopts optical glass, the refractive index nd of the 7th described lens 77With abbe number vd7Meeting above-mentioned expression formula, distortion increasing light height of incidence in image planes can be reduced well, improve the illumination of peripheral field, improving the optical transfer function of optical imaging system, thus promoting picture element。
The refractive index nd of the 8th described lens 88Meet following expression: 1.5 < nd8< 1.8；The abbe number of the 8th described lens 8 is vd8Meet following expression: 70 < vd8< 90。The material of the 8th described lens 8 adopts optical glass, the refractive index nd of the 8th described lens 88With abbe number vd8Meet above-mentioned expression formula, it is possible to reduce image planes chief ray incidence angles, reduce imaging aberration。
Described second lens the 2, the 3rd lens the 3, the 4th lens the 4, the 5th lens the 5, the 6th lens 6 are spherical lens, and the aspherical surface shape of described first lens the 1, the 7th lens 7 and the 8th lens 8 meets equation: In formula, parameter c is the curvature corresponding to radius, and y is that its unit of radial coordinate is identical with length of lens unit, and k is circular cone whose conic coefficient；When k-factor is less than-1, the face sigmoid curves of lens is hyperbola, and when k-factor is equal to-1, the face sigmoid curves of lens is parabola；When k-factor is between-1 to 0, the face sigmoid curves of lens is oval, and when k-factor is equal to 0, the face sigmoid curves of lens is circular, and when k-factor is more than 0, the face sigmoid curves of lens is oblate；α1To α8Represent the coefficient corresponding to each radial coordinate respectively。
Optical imaging system of the present invention is made up of three sheet glass aspheric surfaces and five sheet glass spherical lenss, it is possible to the optical imaging lens that volume is little, picture element is high, picture is big of the aspect such as be applied to micro-4/3 system of digital camera, unmanned plane is taken photo by plane。
Claims (9)
1. an optical imaging system, it is characterised in that: it is sequentially provided with from thing side to image side:
First lens (1), described the first lens (1) are minus lens, and described the first lens (1) towards the one side of thing side be hyperbola aspheric surface, one side towards image side be oval aspheric surface；
Second lens (2), described the second lens (2) are plus lens, and described the second lens (2) one side towards thing side and the one side towards image side are sphere；
3rd lens (3), the 3rd described lens (3) are minus lens, and the 3rd described lens (3) are biconcave lens；
4th lens (4), the 4th described lens (4) are plus lens, and the 4th described lens (4) are biconvex lens；
Diaphragm (11)；
5th lens (5), the 5th described lens (5) are minus lens, and the 5th described lens (5) are biconcave lens；
6th lens (6), the 6th described lens (6) are plus lens, and the 6th described lens (6) are biconvex lens；
7th lens (7), the 7th described lens (7) are plus lens, and the 7th described lens (7) are oblate aspheric surface towards the one side of thing side, are hyperbola aspheric surface towards the one side of image side；
8th lens (8), the 8th described lens (8) are plus lens, and the 8th described lens (8) are hyperbola aspheric surface towards the surface of thing side and image side；
Optical filter (9)；
Sensitive chip (10)。
2. optical imaging system according to claim 1, it is characterised in that: the focal length respectively f of described the first lens (1), the second lens (2), the 3rd lens (3), the 4th lens (4), the 5th lens (5), the 6th lens (6), the 7th lens (7) and the 8th lens (8)1、f2、f3、f4、f5、f6、f7And f8, and meet following expression formula :-4 < f1/f2< 0 ,-4 < f3/f4<-1 ,-4 < f5/f6< 0,0 < f7/f8< 8；The abbe number respectively vd of described the first lens (1), the second lens (2), the 3rd lens (3), the 4th lens (4), the 5th lens (5), the 6th lens (6), the 7th lens (7) and the 8th lens (8)1、vd2、vd3、vd4、vd5、vd6、vd7And vd8, and meet following expression formula: vd1> 45, vd4> 45, vd6> 45, vd8> 45, vd2< 40, vd3< 40, vd5< 40, vd7< 40,40 < (vd1-vd2) < 55,45 < (vd8-vd7) < 60。
3. optical imaging system according to claim 1 and 2, it is characterised in that: the refractive index nd of described the first lens (1)1Meet following expression: 1.4 < nd1< 1.7；The abbe number of described the first lens (1) is vd1Meet following expression: 70 < vd1<95。
4. optical imaging system according to claim 1 and 2, it is characterised in that: the refractive index nd of described the second lens (2)2Meet following expression: 1.7 < nd2< 2.0, the abbe number of described the second lens (2) is vd2Meet following expression: 19 < vd2<35。
5. optical imaging system according to claim 1 and 2, it is characterized in that: the 3rd described lens (3) and the 4th lens (4) are adhesively-bonded together to form balsaming lens and the refractive index nd of the 3rd described lens (3)3With abbe number vd3Meet following expression respectively: 1.5 < nd3< 1.8,25 < vd3< 40；The refractive index nd of the 4th described lens (4)4With abbe number vd4Meet following expression respectively: 1.5 < nd4< 1.8,45 < vd4<60。
6. optical imaging system according to claim 1 and 2, it is characterized in that: the 5th described lens (5) and the 6th lens (6) are adhesively-bonded together to form balsaming lens and the refractive index nd of the 5th described lens (5)5With abbe number vd5Meet following expression respectively: 1.5 < nd5< 1.8,20 < vd5< 35；The refractive index nd of the 6th described lens (6)6With abbe number vd6Meet following expression respectively: 1.5 < nd6< 1.8,45 < vd6<60。
7. optical imaging system according to claim 1 and 2, it is characterised in that: the refractive index nd of the 7th described lens (7)7Meet following expression: 1.9 < nd7< 2.2；The abbe number of the 7th described lens (7) is vd7Meet following expression: 15 < vd7<30。
8. optical imaging system according to claim 1 and 2, it is characterised in that: the refractive index nd of the 8th described lens (8)8Meet following expression: 1.5 < nd8< 1.8；The abbe number of the 8th described lens (8) is vd8Meet following expression: 70 < vd8<90。
9. optical imaging system according to claim 1 and 2, it is characterized in that: described second lens (2), the 3rd lens (3), the 4th lens (4), the 5th lens (5), the 6th lens (6) are spherical lens, and the aspherical surface shape of described first lens (1), the 7th lens (7) and the 8th lens (8) meets equation: In formula, parameter c is the curvature corresponding to radius, and y is that its unit of radial coordinate is identical with length of lens unit, and k is circular cone whose conic coefficient；When k-factor is less than-1, the face sigmoid curves of lens is hyperbola, and when k-factor is equal to-1, the face sigmoid curves of lens is parabola；When k-factor is between-1 to 0, the face sigmoid curves of lens is oval, and when k-factor is equal to 0, the face sigmoid curves of lens is circular, and when k-factor is more than 0, the face sigmoid curves of lens is oblate；α1To α8Represent the coefficient corresponding to each radial coordinate respectively。
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| CN118377115A (en) * | 2024-06-27 | 2024-07-23 | 苏州华兴源创科技股份有限公司 | Cylindrical mirror, optical system, and imaging device |
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| CN108873250B (en) * | 2017-05-15 | 2020-04-14 | 先进光电科技股份有限公司 | Optical imaging system |
| TWI653463B (en) | 2017-12-29 | 2019-03-11 | 玉晶光電股份有限公司 | Optical imaging lens |
| CN108333724A (en) * | 2018-05-08 | 2018-07-27 | 嘉兴中润光学科技有限公司 | Tight shot |
| CN108919467A (en) * | 2018-09-21 | 2018-11-30 | 广东奥普特科技股份有限公司 | A kind of lens assembly carrying out multi-angle of view shooting |
| CN109212750B (en) * | 2018-10-11 | 2023-08-08 | 佛山科学技术学院 | Long-focus athermalized star sensor optical system |
| CN109212750A (en) * | 2018-10-11 | 2019-01-15 | 佛山科学技术学院 | A kind of long-focus is without thermalization optical system of star sensor |
| CN111638587A (en) * | 2020-05-08 | 2020-09-08 | 成都优视光电技术有限公司 | Large-aperture high-pixel panoramic optical system |
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| CN115248496A (en) * | 2022-09-23 | 2022-10-28 | 浙江大华技术股份有限公司 | High-definition optical lens and high-performance laser radar |
| CN115248496B (en) * | 2022-09-23 | 2022-12-16 | 浙江大华技术股份有限公司 | High-definition optical lens and high-performance laser radar |
| WO2024103957A1 (en) * | 2022-11-16 | 2024-05-23 | 江西联创电子有限公司 | Optical lens |
| CN118377115A (en) * | 2024-06-27 | 2024-07-23 | 苏州华兴源创科技股份有限公司 | Cylindrical mirror, optical system, and imaging device |
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