CN205067852U - Zoom lens - Google Patents
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- CN205067852U CN205067852U CN201520789235.3U CN201520789235U CN205067852U CN 205067852 U CN205067852 U CN 205067852U CN 201520789235 U CN201520789235 U CN 201520789235U CN 205067852 U CN205067852 U CN 205067852U
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Abstract
The utility model provides a zoom lens, include: first battery of lens disposes in the thing side and for instance between the side, just have positive diopter, the second battery of lens disposes in first battery of lens and for instance between the side, just have negative diopter, the third battery of lens disposes in the second battery of lens and for instance between the side, just have positive diopter, and the fourth battery of lens, dispose in the third battery of lens with for instance between the side, and has positive diopter, first battery of lens, second battery of lens, third battery of lens and fourth battery of lens are all as removing lens unit. The pantograph ratio of this camera lens probably is 10: 1, the angle of vision under short burnt limiting case reaches 70 degrees at least, and the lens of camera lens foremost have very little size, and the overall length of the camera lens of zoom lens under the short burnt condition is very little, and especially adapted telescopic camera camera lens is and have very high optical imaging quality.
Description
Technical field
The utility model relates to a kind of zoom lens, refers in particular to that a kind of with a wide angle of view, astigmatism and the little zoom lens of aberration.
Background technology
The demand of people to the miniature zooming camera lens having Wide-angle and high pantograph ratio continues to increase in recent years, but this problem of pel spacing constantly has new technology occur reducing further, therefore, just needs higher resolution to optical system.The technology right and wrong that the structure of the compact camera that present camera system adopts telescopic camera lens to make is thinner are usually shown in, this camera adopts the structure of multi-level bucket to reduce the interval in space between camera lens when zoom lens gets back to initial position.The lens (very little on optical axis) that the zoom lens needs of an applicable telescopic mechanism are very thin, in addition, camera lens up front needs very little size radius.In addition zoom system, pancreatic system overall length mechanical constraint to also be considered at design aspect.
Usually, zoom lens is configured with the first positive lens groups successively by the order from thing to picture, the second negative lens group, the 3rd positive lens groups, the 4th positive lens groups.Publication number is in the Jap.P. not on trial of No.2006-23529, and the pantograph ratio of zoom system, pancreatic system is approximately 5:1, and the field angle of short telephoto limit is approximately 61 degree, and shortcoming is that field angle is too little, and pantograph ratio is large not.Publication number is in the Jap.P. not on trial of No.2008-112013, and the astigmatism of zoom system, pancreatic system and aberration are very large, and this dispersion can not meet the performance of the zoom lens under high resolving power.
Utility model content
The utility model is in view of above problem, and object is the zoom lens providing a kind of wide visual field angle, astigmatism and aberration low.
The utility model is achieved by the following technical solution:
A kind of zoom lens, be suitable for by the image objects of thing side on an imaging surface of image side, described zoom lens comprises:
First lens combination, is configured between described thing side and described image side, and has positive diopter;
Second lens combination, is configured between described first lens combination and described image side, and has negative diopter;
3rd lens combination, is configured between described second lens combination and described image side, and has positive diopter; 3rd lens combination comprises the 6th lens element and the 7th lens element successively by image side described in described thing side direction;
And the 4th lens combination, be configured between described 3rd lens combination and described image side, and there is positive diopter;
First lens combination, the second lens combination, the 3rd lens combination and the 4th lens combination are all as mobile lens unit, and described zoom lens meets following condition:
-7＜f1/f2＜-5.5，
0.2＜f3/f4＜0.5，
-1.2＜fa/fb＜-0.8，
1.0＜z2/z3＜1.8，
z2＝m2t/w2t，
z3＝m3t/w3t，
vd＞70，
X＝cy
2/(1+[1-{1+K}c
2y
2)+A4y
4+A6y
6+A8y
8+A10y
10+A12y
12，
F1 is the focal length of the first lens combination, and f2 is the focal length of the second lens combination; F3 is the focal length of the 3rd lens combination, and f4 is the focal length of the 4th lens combination; Fa is the focal length of the 5th lens element in described the second lens combination, and fb is the focal length of the 7th lens element in described the 3rd lens combination; Z2 is the axial length of the second lens combination, and z3 is the axial length of the 3rd lens combination; M2t is the lateral magnification of the second lens combination when focusing under the focal length limit, and w2t is the lateral magnification of the second lens combination when focusing under short telephoto limit; M3t is the lateral magnification of the 3rd lens combination when focusing under the focal length limit, and w3t is the lateral magnification of the 3rd lens combination when focusing under short telephoto limit; Vd is the Abbe number of the 6th lens element in the 3rd lens combination; X is the distance to section, aspheric surface summit; C is the curvature 1/r on aspheric surface summit; Y is the distance to optical axis; K is quadric surface constant; A4 is 4 rank asphericity coefficients; A6 is 6 rank asphericity coefficients; A8 is 8 rank asphericity coefficients; A10 is 10 rank asphericity coefficients; A12 is 12 rank asphericity coefficients.
Described zoom lens also comprises an aperture, and described aperture is configured between the second lens combination and the 3rd lens combination, and moves with the 3rd lens combination.
Described first lens combination comprises first lens element, second lens element by image side described in described thing side direction, and the first lens element and the second lens element are followed successively by negative, positive;
Described second lens combination comprises the 3rd lens element, the 4th lens element and the 5th lens element by image side described in described thing side direction, and the 3rd lens element, the 4th lens element and the 5th lens element are followed successively by negative, negative, positive;
In described 3rd lens combination, the 6th lens element and the 7th lens element are followed successively by positive and negative;
Described 4th lens combination comprises the 8th lens element, and the 8th lens element is just.
Described first lens element is the concave-convex lens of concave surface facing image side; Second lens element is the convex lens convex surface facing thing side; 3rd lens element is the concavees lens of concave surface facing image side; 4th lens element is the concavees lens of concave surface facing image side; 5th lens element is the convex lens convex surface facing thing side; 6th lens element is biconvex lens; 7th lens element is half meniscus lens of concave surface facing image side; 8th lens element is the convex lens convex surface facing thing side.
Two faces of described 5th lens element have at least one side to be aspheric surface, and described 5th lens element is plastic material.
Two faces of described 6th lens element have at least one side to be aspheric surface, and two faces of described 7th lens element have at least one side to be aspheric surface, and described 7th lens element is plastic material or glass material.
Two faces of described 8th lens element are aspheric surface.
Described zoom lens also comprises an optically filtering sheet and a block protection glass, and described optically filtering sheet is configured at the described 4th between lens combination and image side, and described cover glass is configured between described optically filtering sheet and image side.
The pantograph ratio of this camera lens is approximately 10:1, field angle in short telephoto limit situation can be 70 degree, the lens of camera lens foremost have very little size, the overall length of the camera lens of zoom lens in short burnt situation is very little, is very applicable to telescopic camera lens and has very high quality of optical imaging.
The utility model has following beneficial effect:
(1) pantograph ratio of this camera lens is approximately 10:1, field angle in short telephoto limit situation at least reaches 70 degree, the lens of camera lens foremost have very little size, the overall length of the camera lens of zoom lens in short burnt situation is very little, is very applicable to telescopic camera lens and has very high quality of optical imaging.
(2) when taking image, there is the low advantage of wide visual field angle, astigmatism and aberration.
(3) energy-conserving and environment-protective more.
Accompanying drawing explanation
Fig. 1 be the utility model in focal length situation to the structural representation that infinite point object focuses on;
Fig. 2 is the image of the distortion that the utility model occurs when focusing on infinite point object in focal length situation;
Fig. 3 is the structural representation that the utility model focuses on infinite point object in middle burnt situation;
Fig. 4 is the image of the distortion that the utility model occurs when focusing on infinite point object in middle burnt situation;
Fig. 5 is the structural representation that the utility model focuses on infinite point object in short burnt situation;
Fig. 6 is the image of the distortion that the utility model occurs when focusing on infinite point object in short burnt situation.
Wherein: G1-first lens combination, G2-second lens combination, G3-the 3rd lens combination; G4-the 4th lens combination, 11-first lens element, 12-second lens element; 21-the 3rd lens element, 22-the 4th lens element, 23-the 5th lens element; S-aperture; 31-the 6th lens element, 32-the 7th lens element, 41-the 8th lens element; op-optically filtering sheet, CG-cover glass
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail:
Zoom lens as shown in Fig. 1,3,5, be suitable for by the image objects of thing side on an imaging surface of image side, described zoom lens comprises: the first lens combination, is configured between described thing side and described image side, and has positive diopter; Second lens combination, is configured between described first lens combination and described image side, and has negative diopter; 3rd lens combination, is configured between described second lens combination and described image side, and has positive diopter; 3rd lens combination comprises the 6th lens element and the 7th lens element successively by image side described in described thing side direction; And the 4th lens combination, be configured between described 3rd lens combination and described image side, and there is positive diopter; First lens combination, the second lens combination, the 3rd lens combination and the 4th lens combination are all as mobile lens unit, and described zoom lens meets following condition:
-1.2＜fa/fb＜-0.8……………………………………(1)
-7＜f1/f2＜-5.5……………………………………(2)
0.2＜f3/f4＜0.5……………………………………(3)
1.0＜z2/z3＜1.8………………………………………(4)
z2＝m2t/w2t…………………………………………(5)
z3＝m3t/w3t……………………………………………(6)
vd＞70……………………………………………………(7)
X＝cy
2/(1+[1-{1+K}c
2y
2)+A4y
4+A6y
6+A8y
8+A10y
10+A12y
12……(8)
Z2 is the axial length of the second lens combination, and z3 is the axial length of the 3rd lens combination; M2t is the lateral magnification of the second lens combination when focusing under the focal length limit, lateral magnification when the second lens combination that w2t specifies focuses under short telephoto limit; Lateral magnification when the 3rd lens combination that m3t specifies focuses under the focal length limit, lateral magnification when the 3rd lens combination that w3t specifies focuses under short telephoto limit; Fa is the focal length of the 6th lens element in described the 3rd lens combination, and fb is the focal length of the 7th lens element in described the 3rd lens combination; F1 is the focal length of the first lens combination, and f2 is the focal length of the second lens combination; F3 is the focal length of the 3rd lens combination, and f4 is the focal length of the 4th lens combination; Vd is the Abbe number of the 6th lens element in the 3rd lens combination; X represents the distance in section, aspheric surface summit; C represents the curvature 1/r on aspheric surface summit; Y represents the distance of optical axis; K represents quadric surface constant; A4 represents 4 rank asphericity coefficients; A6 represents 6 rank asphericity coefficients; A8 represents 8 rank asphericity coefficients; A10 represents 10 rank asphericity coefficients; A12 represents 12 rank asphericity coefficients.
Fig. 2,4,6 be respectively corresponding to Fig. 1,3, fault image under 5 situations.
Described zoom lens also comprises an aperture, and described aperture is configured between the second lens combination and the 3rd lens combination, and moves with the 3rd lens combination when zoom.
Described first lens combination comprises first lens element, second lens element by image side described in described thing side direction, and the first lens element and the second lens element are followed successively by negative, positive; Described first lens element is the concave-convex lens of concave surface facing image side; Second lens element is the convex lens convex surface facing thing side;
Described second lens combination comprises the 3rd lens element, the 4th lens element and the 5th lens element by image side described in described thing side direction, and the 3rd lens element, the 4th lens element and the 5th lens element are followed successively by negative, negative, positive; 3rd lens element is the concavees lens of concave surface facing image side; 4th lens element is the concavees lens of concave surface facing image side; 5th lens element is the convex lens convex surface facing thing side; Two faces of described 5th lens element have at least one side to be aspheric surface; Described 5th lens element is plastic material.
In described 3rd lens combination, the 6th lens element and the 7th lens element are followed successively by positive and negative; 6th lens element is biconvex lens; 7th lens element is half meniscus lens of concave surface facing image side; And two faces of described 6th lens element have at least one side to be aspheric surface, two faces of described 7th lens element have at least one side to be aspheric surface; Described 7th lens element is plastic material or glass material.
Described 4th lens combination comprises the 8th lens element, and the 8th lens element is just, the 8th lens element is the convex lens convex surface facing thing side, and two faces of described 8th lens element are aspheric surface.
Described zoom lens also comprises an an optically filtering sheet op and block protection glass CG, and described optically filtering sheet op is configured at the described 4th between lens combination and image side, and described cover glass CG is configured between described optically filtering sheet and image side.
When zooming to the focal length limit (T) by short telephoto limit (W), first lens combination G1 moves to the 3rd lens combination G3 along optical axis direction, and the distance between the first lens combination G1 and the second lens combination G2 increases, second lens combination G2 moves to the 3rd lens combination G3, and the distance between the second lens combination G2 and the 3rd lens combination G3 reduces, the distance between the 3rd lens combination G3 and the 4th lens combination G4 increases.
More precisely, when zooming to the focal length limit (T) by short telephoto limit (W), first lens combination G1 moves in the following way to the 4th lens combination G4: single the moving to thing side of the first lens combination G1, single the moving to image side of second lens combination G2, single the moving to thing side of 3rd lens combination G3,4th lens combination G4 moved then oriented thing side before this and moved to image side, get back to camera lens near the position at the lens combination G4 place of short telephoto limit.
In order to reduce the fuselage of scalable zoom lens, camera adopts multi-level bucket structure.In order to reduce camera lens overall length, just require, at the first lens combination G1 near object space, there is very little size; Distance little (along optical axis direction) between each group lens, in addition, the physical construction simplifying lens combination movement in zooming procedure is also necessary, and generally, lens combination is fewer, and the physical construction of camera lens is simpler.But such device is difficult to high pantograph ratio, and the thickness of the size and each lens combination that reduce zoom system, pancreatic system by the lens member number reducing each lens combination can increase the difficulty optimizing aberration.In a miniature zoom system, pancreatic system, will effectively optimize various distortion, need each lens combination to have suitable index distribution in whole zooming range, in addition, a suitable camera lens layout is also also be necessary.
Zoom system, pancreatic system of the present utility model is a positive lens is main lens combination, is configured with successively: a positive lens groups, a negative lens group, a positive lens groups, a positive lens groups by the order from thing to picture.With the zoom system, pancreatic system of negative lens main line, there is tall and big pantograph ratio compared with being used in the past in micro-camera.But due to the increase of lens combination lens numbers, the problem brought is exactly thickness increase (length at optical axis direction) of lens combination.And the size of the camera lens of foremost is easy to increase, if use the structure of a multi-level bucket to realize the flexible of camera lens, this multi-level bucket structure also can increase the size of camera.This degree is said, multi-level bucket structure can not be used for micro-camera.In addition, in the zoom system, pancreatic system based on positive lens, if trial obtains high pantograph ratio, under focal length limiting case, the overall length of zoom system, pancreatic system can increase, in order to prevent the increase of system dimension, the index distribution of suitable adjustment second lens combination G2 and the 3rd lens combination G3 is necessary.
Second lens combination of traditional zoom system, pancreatic system comprises two positive element and a negative lens element, such as three-lens element, in order to obtain larger pantograph ratio and less physical dimension, this just requires the negative lens refractive index of increase second lens combination, but the consequence brought is exactly have difficulties when optimizing aberration and various distortion, thus result in image quality decline.
In order to overcome the above problems, according to the order from thing to picture, second lens combination G2 of the present utility model comprises the 3rd lens element 21 that an one side towards image side is concave surface, an one side towards image side is the 4th lens element 22 of concave surface, an one side towards thing side is the 5th lens element 23 of convex surface, and the 5th lens element 23 has at least a face to be aspheric surface, this structure effectively optimizes the aberration of the second lens combination G2 and various distortion, substantially increases image quality.
According to the order from thing to picture, the 3rd lens combination G3 of the present utility model comprises the 6th lens element 31, and the 6th lens element 31 has at least a face to be aspheric surface; Also comprise the 7th lens element 32 that a face near image space is concave surface, adopt such structure greatly can reduce the distortion of the 3rd lens combination G3, in addition, the focus drifting of the 5th lens element 23 caused by temperature variation and the 3rd lens combination G3 the 7th lens element 32 and the axle curvature of field far away can also be reduced.
Constraint condition:
(1) ratio of the focal length of the 5th lens element 23 of the second lens combination G2 and the 7th lens element 32 focal length of the 3rd lens combination G3 is specified, i.e. formula (1).Satisfy condition after (1), any because the negative effect that high temperature or these unfavorable factors of low temperature are brought can reduce, therefore image quality is high.If higher than or condition (1) described in restriction, then the image quality of camera lens will decline.
(2) ratio of the focal length of the first lens combination G1 and the focal length of the second lens combination G2 is specified, i.e. formula (2).Satisfy condition after (2), under short telephoto limit, the first lens combination G1 size can not increase, the field angle that system will have at least 70 to spend, and reduce the overall length of system under the focal length limit.If exceed the upper limit described in (2), then the refractive index of the second lens combination G2 is too little, can not match with the first lens combination G1 refractive index, although also can reduce entire system length, field angle is difficult to reach 70 degree.If lower than the lower limit described in (2), then the refractive index of the second lens combination G2 relative to the first lens combination G1 refractive index Yan Tai great, thus the radius of the first lens combination G1 increases, and the overall length of system when the focal length limit increases.
(3) ratio of the focal length of the 3rd lens combination G3 and the focal length of the 4th lens combination G4 is specified, i.e. formula (3).Satisfy condition after (3), mainly realize having good matching degree between the refractive index of the 3rd lens combination G3 of zoom operation and the refractive index realizing focal imaging the 4th lens combination G4, substantially reduce the size of camera lens, thus realize microminiaturized.When in the restriction exceeding condition (3) in limited time, the relative 3rd lens combination G3 of refractive index of the 4th lens combination G4 seems too large, thus causes when closely focal imaging, and the distortion of image becomes large.If lower than the restriction lower limit of condition (3), the refractive index of the 3rd lens combination G3 seems too large relative to the 4th lens combination G4, thus the distortion optimizing the 3rd lens combination G3 will be quite difficult, to have to like this quantity of increase the 3rd lens combination G3 mirror arrangement of mirrors head, result in again overall system (on optical axis) thickness and become large.
(4) the second lens combination G2 and the ratio of the 3rd lens combination G3 on zoom proportion, i.e. formula (4) ~ (6) are specified.Satisfy condition after (4), when the fluctuation change suppressing f-number, the effective radius of first group of lens G1 will reduce.If exceed the restriction upper limit of condition (4), then the second lens combination G2 relative 3rd lens combination G3 on zoom proportion can become large, and namely the refractive index of the second lens combination G2 will become large, and the effective radius which results in first group of lens G1 increases.If lower than the restriction lower limit of condition (4), then the 3rd lens combination G3 relative second lens combination G2 on zoom proportion can become large, and namely in zooming procedure, the displacement of the 3rd lens combination G3 can increase, and the fluctuation of f-number also can increase.
(5) Abbe number of positive element 31 pairs of d-light in three lens cluster G3 is specified, i.e. formula (7).Satisfy condition the dispersion distortion well optimizing three lens cluster group G3 after (5).If lower than the restriction lower limit of condition (5), the dispersion distortion of optimization three lens cluster G3 will be difficult to.
Concrete data illustrate: in concrete parallax images and chart, d-line, f-line, and C-line represents their aberration distortion at different wavelengths; FNO represents f-number, the effective focal length that f representative system is overall, and W represents angle of half field-of view; Y represents image height; FB represents back focal length; L represents the overall length of whole system; R represents radius-of-curvature; D represents the distance between the thickness of lens or lens; N (d) represents the refractive index of d light, the Abbe number of vd representative under corresponding d light; Unified definition represents that the unit of various length is millimeter.The value of F-number, focal length, angle of half field-of view, the thickness between the lens under zoom be according to short Jiao, middle Jiao, focal length tactic.
One defines according to following publicity about optical axis aspheric surface symmetrically:
X＝cy
2/(1+[1-{1+K}c
2y
2)+A4y
4+A6y
6+A8y
8+A10y
10+A12y
12(8)
X represents the distance in section, aspheric surface summit; C represents the curvature (1/r) on aspheric surface summit; Y represents the distance of optical axis; K represents quadric surface constant; A4 represents 4 rank asphericity coefficients; A6 represents 6 rank asphericity coefficients; A8 represents 8 rank asphericity coefficients; A10 represents 10 rank asphericity coefficients; A12 represents 12 rank asphericity coefficients.
In following table: table one is the surface data of camera lens, table two is system datas of different zoom lens, and table three is aspherical surface data, and table four is data of each lens combination of zoom lens.
Table one
Table two
Table three
Table four
Claims (10)
1. a zoom lens, be suitable for by the image objects of thing side on an imaging surface of image side, it is characterized in that, described zoom lens comprises:
First lens combination, is configured between described thing side and described image side, and has positive diopter;
Second lens combination, is configured between described first lens combination and described image side, and has negative diopter;
3rd lens combination, is configured between described second lens combination and described image side, and has positive diopter; 3rd lens combination comprises the 6th lens element and the 7th lens element successively by image side described in described thing side direction;
And the 4th lens combination, be configured between described 3rd lens combination and described image side, and there is positive diopter;
First lens combination, the second lens combination, the 3rd lens combination and the 4th lens combination are all as mobile lens unit, and described zoom lens meets following condition:
-7＜f1/f2＜-5.5，
0.2＜f3/f4＜0.5，
-1.2＜fa/fb＜-0.8，
1.0＜z2/z3＜1.8，
z2＝m2t/w2t，
z3＝m3t/w3t，
vd＞70，
X＝cy
2/(1+[1-{1+K}c
2y
2)+A4y
4+A6y
6+A8y
8+A10y
10+A12y
12，
F1 is the focal length of the first lens combination, and f2 is the focal length of the second lens combination; F3 is the focal length of the 3rd lens combination, and f4 is the focal length of the 4th lens combination; Fa is the focal length of the 5th lens element in described the second lens combination, and fb is the focal length of the 7th lens element in described the 3rd lens combination; Z2 is the axial length of the second lens combination, and z3 is the axial length of the 3rd lens combination; M2t is the lateral magnification of the second lens combination when focusing under the focal length limit, and w2t is the lateral magnification of the second lens combination when focusing under short telephoto limit; M3t is the lateral magnification of the 3rd lens combination when focusing under the focal length limit, and w3t is the lateral magnification of the 3rd lens combination when focusing under short telephoto limit; Vd is the Abbe number of the 6th lens element in the 3rd lens combination; X is the distance to section, aspheric surface summit; C is the curvature 1/r on aspheric surface summit; Y is the distance to optical axis; K is quadric surface constant; A4 is 4 rank asphericity coefficients; A6 is 6 rank asphericity coefficients; A8 is 8 rank asphericity coefficients; A10 is 10 rank asphericity coefficients; A12 is 12 rank asphericity coefficients.
2. a kind of zoom lens according to claim 1, is characterized in that, described zoom lens also comprises an aperture, and described aperture is configured between the second lens combination and the 3rd lens combination, and moves with the 3rd lens combination.
3. a kind of zoom lens according to claim 1, is characterized in that,
Described first lens combination comprises first lens element, second lens element by image side described in described thing side direction, and the first lens element and the second lens element are followed successively by negative, positive;
Described second lens combination comprises the 3rd lens element, the 4th lens element and the 5th lens element by image side described in described thing side direction, and the 3rd lens element, the 4th lens element and the 5th lens element are followed successively by negative, negative, positive;
In described 3rd lens combination, the 6th lens element and the 7th lens element are followed successively by positive and negative;
Described 4th lens combination comprises the 8th lens element, and the 8th lens element is just.
4. a kind of zoom lens according to claim 3, is characterized in that,
Described first lens element is the concave-convex lens of concave surface facing image side; Second lens element is the convex lens convex surface facing thing side; 3rd lens element is the concavees lens of concave surface facing image side; 4th lens element is the concavees lens of concave surface facing image side; 5th lens element is the convex lens convex surface facing thing side; 6th lens element is biconvex lens; 7th lens element is half meniscus lens of concave surface facing image side; 8th lens element is the convex lens convex surface facing thing side.
5. a kind of zoom lens according to claim 4, is characterized in that, two faces of described 5th lens element have at least one side to be aspheric surface.
6. a kind of zoom lens according to claim 3 ~ 5 any one, is characterized in that, described 5th lens element is plastic material.
7. a kind of zoom lens according to claim 4, is characterized in that, two faces of described 6th lens element have at least one side to be aspheric surface, and two faces of described 7th lens element have at least one side to be aspheric surface.
8. a kind of zoom lens according to claim 3 or 4 or 7 any one, is characterized in that, described 7th lens element is plastic material or glass material.
9. a kind of zoom lens according to claim 3 or 4, is characterized in that, two faces of described 8th lens element are aspheric surface.
10. a kind of zoom lens according to claim 1; it is characterized in that; described zoom lens also comprises an optically filtering sheet and a block protection glass; described optically filtering sheet is configured at the described 4th between lens combination and image side, and described cover glass is configured between described optically filtering sheet and image side.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520789235.3U CN205067852U (en) | 2015-10-12 | 2015-10-12 | Zoom lens |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520789235.3U CN205067852U (en) | 2015-10-12 | 2015-10-12 | Zoom lens |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106501921A (en) * | 2016-12-21 | 2017-03-15 | 江西联益光学有限公司 | Unmanned plane pick-up lens |
| WO2022061510A1 (en) * | 2020-09-22 | 2022-03-31 | 欧菲光集团股份有限公司 | Optical system, camera module, and electronic device |
| US11506867B2 (en) | 2017-08-18 | 2022-11-22 | Largan Precision Co., Ltd. | Image capturing optical assembly, imaging apparatus and electronic device |
| US12001082B2 (en) | 2017-08-18 | 2024-06-04 | Largan Precision Co., Ltd. | Image capturing optical assembly, imaging apparatus and electronic device |
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2015
- 2015-10-12 CN CN201520789235.3U patent/CN205067852U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106501921A (en) * | 2016-12-21 | 2017-03-15 | 江西联益光学有限公司 | Unmanned plane pick-up lens |
| CN106501921B (en) * | 2016-12-21 | 2022-06-07 | 江西联益光学有限公司 | Unmanned aerial vehicle camera lens |
| US11506867B2 (en) | 2017-08-18 | 2022-11-22 | Largan Precision Co., Ltd. | Image capturing optical assembly, imaging apparatus and electronic device |
| US12001082B2 (en) | 2017-08-18 | 2024-06-04 | Largan Precision Co., Ltd. | Image capturing optical assembly, imaging apparatus and electronic device |
| WO2022061510A1 (en) * | 2020-09-22 | 2022-03-31 | 欧菲光集团股份有限公司 | Optical system, camera module, and electronic device |
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