CN203275754U - Optical compensation zoom lens - Google Patents
Optical compensation zoom lens Download PDFInfo
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- CN203275754U CN203275754U CN201320157973.7U CN201320157973U CN203275754U CN 203275754 U CN203275754 U CN 203275754U CN 201320157973 U CN201320157973 U CN 201320157973U CN 203275754 U CN203275754 U CN 203275754U
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- lens
- zoom
- optical compensation
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- convex
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Abstract
An optical compensation zoom lens comprises a compensating lens group and a zoom lens group. Focus variation of the whole lens is adjusted by changing relative positions of the compensating lens group and the zoom lens assembly. The compensating lens group comprises a convex-concave negative light focal power lens serving as a first lens, a double-concave negative light focal lens serving as a second lens and a double-convex positive light focal lens serving as a third lens, wherein the first lens, the second lens and the third lens are arranged on one side of an object. The zoom lens group comprises a double-convex negative light focal power lens serving as a fourth lens, a concave-concave negative light focal lens serving as a fifth lens and a double-convex positive light focal lens serving as a sixth lens, a concave-concave negative light focal lens serving as a seventh lens, a double-convex positive light focal lens serving as a eighth lens, a concave-concave negative light focal lens serving as a ninth lens, wherein the fourth lens, the fifth lens, the sixth lens, the seventh lens, the eighth lens and the ninth lens are arranged on one side of the object. The optical compensation zoom lens achieves con-focus of visible light imaging and infrared light imaging through the structures of the lens and parameter setting.
Description
Technical field
The utility model belongs to the optoelectronic integration field, relates to a kind of optical compensation zoom lens.
Background technology
Along with security precautions and automaticity improve constantly, it is important that the monitoring at night more and more seems.Common monitoring camera is mainly for visible light condition design on daytime, and people monitor that target just meets the demands as long as can see under the visible light condition.Yet in the monitoring occasion that has, can only be equipped with the sightless infrared light of human eye evening, because infrared light is different from visible light wavelength, and common camera lens is not considered infrared light in design, the image planes position of their imagings can be offset, infrared out of focus appears, the phenomenon that shows be exactly under the infrared light condition image blur, image quality poor.In addition, because day and night temperature is larger, common lens are because the variation of temperature also easily produces the variation of refractive index and produces migration imagery.
The utility model content
Based on this, the purpose of this utility model be to provide a kind of compact assembling, by day under the visible light condition clearly the display monitoring target, can also use under infrared light at night clearly display monitoring target simultaneously.
A kind of optical compensation zoom lens, comprise a compensating glass group and a zoom mirror group, by the focal length variations that the relative position that changes compensating glass group and zoom mirror group is regulated whole camera lens, this compensating glass group comprises that the first lens of arranging by object one side is that convex-concave negative power lens, the second lens are that concave-concave negative power lens, the 3rd lens are biconvex positive light coke lens; Described zoom mirror group comprises that the 4th lens of arranging by object one side are that positive light coke lens, the 5th lens of biconvex are that concavo-convex negative power lens, the positive light coke lens that the 6th lens are biconvex, the negative power lens that the 7th lens are convex-concave, positive light coke lens, the 9th lens that the 8th lens are biconvex are concavo-convex negative power lens, each focal length of these nine lens, refractive index and the radius of totally ten eight faces meet the following conditions respectively:
-15<f1<-10 1.6<n1<1.8 50<R1<60 6<R2<8
-13<f2<-8 1.5<n2<1.7 -21<R3<-15 8<R4<14
11<f3<16 1.5<n3<1.8 9<R5<14 -530<R6<-320
Diaphragm
Further, having a slice at least in described nine lens is the Extra-low Dispersion lens.
Further, the 6th lens of described zoom mirror group are the Extra-low Dispersion lens.
Further, the first lens of described compensating glass group and second lens directly are close to assembling, are separated by a packing ring between described second lens and the 3rd lens.
Further, the 8th lens and the 9th lens of described zoom mirror group are balsaming lenss, and the balsaming lens that the 8th lens and the 9th lens form and described the 7th lens are directly near assembling.
Further, the 4th lens of described zoom mirror group and the 5th lens directly near, the 5th lens and described the 6th lens are spaced apart by a packing ring, the 6th lens and described the 7th lens are spaced apart by a packing ring.
Further, the scope of the focal length of the whole optical system of described optical compensation zoom lens is 2.9mm～15mm.
The utility model optical compensation zoom lens is by the structure and parameters setting of each lens, realize that visual light imaging and near infrared imaging are confocal, the focusing that makes this optical compensation zoom lens need not other adjustable lens can be distinguished clear display monitoring target under the condition of visible illumination and evening Infrared irradiation by day.
Description of drawings
Fig. 1 is the assembly drawing of each lens of optical compensation zoom lens of the present utility model.
Fig. 2 is the optical system diagram of the optical compensation zoom lens of Fig. 1.
Embodiment
For the technical solution of the utility model can more clearly be showed, the utility model is described in further detail below in conjunction with accompanying drawing.
Please refer to Fig. 1 and Fig. 2, a kind of optical compensation zoom lens of the present utility model comprises a compensating glass group 10 and a zoom mirror group 20.This compensating glass group 10 is arranged in a front lens barrel (not shown), this zoom mirror group 20 is arranged in a rear lens barrel (not shown), this front lens barrel separates with rear lens barrel and is arranged in a body tube (not shown), the relatively moving in body tube by this front lens barrel and rear lens barrel, thereby the relative position that changes compensating glass group 10 and zoom mirror group 20 is adjusted the focal length variations of whole camera lens, and focal length zoom ratio scope is: 2～5 times.
The total focal power of described compensating glass group 10 is for negative.This compensating glass group 10 comprises by the tactic first lens L1 of object one side, second lens L2, the 3rd lens L3.These first lens L1 is a slice convex-concave negative power lens; Second lens L2 is a slice concave-concave negative power lens; The 3rd lens L3 is biconvex positive light coke lens.First lens L1 and second lens L2 directly are close to assembling, are separated by a packing ring (not shown) between second lens L2 and the 3rd lens L3.
The total focal power of described zoom mirror group 20 is for just.This zoom mirror group 20 comprises by tactic 1 the 4th lens L4 of object one side, the 5th lens L5, six-element lens L6, the 7th lens L7, the 8th lens L8, the 9th lens L9.The 4th lens L4 is the positive light coke lens of a slice biconvex, the 5th lens L5 is the concavo-convex negative power lens of a slice, the 6th lens L6 is the positive light coke lens of a slice biconvex, the 7th lens L7 is the negative power lens of a slice convex-concave, the 8th lens L8 is the positive light coke lens of a slice biconvex, and the 9th lens L9 is the concavo-convex negative power lens of a slice.The 4th lens L4 and the 5th lens L5 directly near, the 5th lens L5 and the 6th lens L6 are spaced apart by a packing ring (not shown), the 6th lens L6 and the 7th lens L7 are spaced apart by a packing ring (not shown), the 8th lens L8 and the 9th lens L9 are that balsaming lens is namely used by optical cement and is bonded together, and the balsaming lens that the 8th lens L8 and the 9th lens L9 form and the 7th lens L7 are directly near assembling.
Having lens in described each lens at least is Extra-low Dispersion lens (being the ED lens, the abbreviation of Extra-low Dispersion).In the present embodiment, described the 6th lens L6 is the Extra-low Dispersion lens.
Described first lens L1, second lens L2, the 3rd lens L3, the 4th lens L4, the 5th lens L5, six-element lens L6, the 7th lens L7, each focal length of the 8th lens L8, the 9th lens L9, refractive index reach, and the radius of totally ten eight faces meets the following conditions respectively:
-15<f1<-10 1.6<n1<1.8 50<R1<60 6<R2<8
-13<f2<-8 1.5<n2<1.7 -21<R3<-15 8<R4<14
11<f3<16 1.5<n3<1.8 9<R5<14 -530<R6<-320
Diaphragm
The optical compensation zoom lens of making according to such scheme, can realize that visual light imaging and near infrared imaging are confocal, the focusing that makes this optical compensation zoom lens need not other adjustable lens can be distinguished clear display monitoring target under the condition of visible illumination and evening Infrared irradiation by day.In addition, by arrange a slice lens at least be the Extra-low Dispersion lens and and the combination of other glass lenss realize this optical compensation zoom lens out of focus not between-20 ℃ to 80 ℃.Wherein the scope of the focal distance f of whole optical system is 2.9mm～15mm.
The above embodiment has only expressed a kind of embodiment of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model the scope of the claims.Should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be as the criterion with claims.
Claims (7)
1. optical compensation zoom lens, comprise a compensating glass group and a zoom mirror group, focal length variations by the relative position that changes this compensating glass group and zoom mirror group is regulated whole camera lens is characterized in that: the first lens of arranging by object one side that this compensating glass group comprises is that convex-concave negative power lens, the second lens are that concave-concave negative power lens, the 3rd lens are biconvex positive light coke lens; The 4th lens of arranging by object one side that described zoom mirror group comprises are that positive light coke lens, the 5th lens of biconvex are that concavo-convex negative power lens, the positive light coke lens that the 6th lens are biconvex, the negative power lens that the 7th lens are convex-concave, positive light coke lens, the 9th lens that the 8th lens are biconvex are concavo-convex negative power lens, each focal length of these nine lens, refractive index and the radius of totally ten eight faces meet the following conditions respectively:
-15<f1<-10 1.6<n1<1.8 50<R1<60 6<R2<8
-13<f2<-8 1.5<n2<1.7 -21<R3<-15 8<R4<14
11<f3<16 1.5<n3<1.8 9<R5<14 -530<R6<-320
Diaphragm
2. optical compensation zoom lens according to claim 1, it is characterized in that: having a slice lens in described nine lens at least is the Extra-low Dispersion lens.
3. optical compensation zoom lens according to claim 2, it is characterized in that: the 6th lens of described zoom mirror group are the Extra-low Dispersion lens.
4. optical compensation zoom lens according to claim 1, it is characterized in that: the first lens of described compensating glass group and second lens directly are close to assembling, are spaced apart by a packing ring between described second lens and the 3rd lens.
5. optical compensation zoom lens according to claim 1, it is characterized in that: the 8th lens and the 9th lens of described zoom mirror group are balsaming lenss, the balsaming lens that the 8th lens and the 9th lens form and described the 7th lens are directly near assembling.
6. optical compensation zoom lens according to claim 5, it is characterized in that: the 4th lens of described zoom mirror group and the 5th lens directly near, the 5th lens and described the 6th lens are spaced apart by a packing ring, and the 6th lens and described the 7th lens are spaced apart by a packing ring.
7. optical compensation zoom lens according to claim 1, it is characterized in that: the scope of the focal length of the whole optical system of described optical compensation zoom lens is 2.9mm～15mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320157973.7U CN203275754U (en) | 2013-04-01 | 2013-04-01 | Optical compensation zoom lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320157973.7U CN203275754U (en) | 2013-04-01 | 2013-04-01 | Optical compensation zoom lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203275754U true CN203275754U (en) | 2013-11-06 |
Family
ID=49506129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320157973.7U Withdrawn - After Issue CN203275754U (en) | 2013-04-01 | 2013-04-01 | Optical compensation zoom lens |
Country Status (1)
| Country | Link |
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| CN (1) | CN203275754U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103197409A (en) * | 2013-04-01 | 2013-07-10 | 东莞市宇瞳光学科技有限公司 | Optical compensation zoom lens |
| CN108761734A (en) * | 2018-07-04 | 2018-11-06 | 福建海图智能科技有限公司 | A kind of ultra-wide angle underwater low-light-level imaging camera lens |
| CN110221423A (en) * | 2019-05-24 | 2019-09-10 | 北方夜视技术股份有限公司 | Hand-held low-light level night vision device |
-
2013
- 2013-04-01 CN CN201320157973.7U patent/CN203275754U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103197409A (en) * | 2013-04-01 | 2013-07-10 | 东莞市宇瞳光学科技有限公司 | Optical compensation zoom lens |
| CN103197409B (en) * | 2013-04-01 | 2017-12-26 | 东莞市宇瞳光学科技股份有限公司 | Optical compensation zoom lens |
| CN108761734A (en) * | 2018-07-04 | 2018-11-06 | 福建海图智能科技有限公司 | A kind of ultra-wide angle underwater low-light-level imaging camera lens |
| CN108761734B (en) * | 2018-07-04 | 2023-06-20 | 福建海图智能科技有限公司 | Super wide angle is glimmer imaging lens under water |
| CN110221423A (en) * | 2019-05-24 | 2019-09-10 | 北方夜视技术股份有限公司 | Hand-held low-light level night vision device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: GUANGDONG YUTONG OPTICAL CO., LTD. Free format text: FORMER OWNER: DONGGUAN YUTONG OPTICAL TECHNOLOGY CO., LTD. Effective date: 20140717 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20140717 Address after: Changan town in Guangdong province Dongguan 523000 usha Ring Road No. 306 Long Yu Kai Dong Industrial Zone D Patentee after: GUANGDONG YUTONG OPTICAL CO., LTD. Address before: 523000, Changan, Dongguan Town, Guangdong province Xin'an community Tian Tian Road Hengtai Industrial Zone No. 168 Patentee before: Dongguan YuTong Optical Technology Co., Ltd. |
|
| ASS | Succession or assignment of patent right |
Owner name: DONGGUAN YUTONG OPTICAL TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: GUANGDONG YUTONG OPTICAL CO., LTD. Effective date: 20141103 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20141103 Address after: 523000, Changan, Dongguan Town, Guangdong province Xin'an community Tian Tian Road Hengtai Industrial Zone No. 168 Patentee after: Dongguan YuTong Optical Technology Co., Ltd. Address before: Changan town in Guangdong province Dongguan 523000 usha Ring Road No. 306 Long Yu Kai Dong Industrial Zone D Patentee before: GUANGDONG YUTONG OPTICAL CO., LTD. |
|
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: Changan town in Guangdong province Dongguan 523000 usha Ring Road No. 306 Long Yu Kai Dong Industrial Zone D Patentee after: DONGGUAN YUTONG OPTICAL TECHNOLOGY CO., LTD. Address before: 523000, Changan, Dongguan Town, Guangdong province Xin'an community Tian Tian Road Hengtai Industrial Zone No. 168 Patentee before: Dongguan YuTong Optical Technology Co., Ltd. |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20131106 Effective date of abandoning: 20171226 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20131106 Effective date of abandoning: 20171226 |