CN202615028U - Dual-waveband lens group structure - Google Patents
Dual-waveband lens group structure Download PDFInfo
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- CN202615028U CN202615028U CN 201220124034 CN201220124034U CN202615028U CN 202615028 U CN202615028 U CN 202615028U CN 201220124034 CN201220124034 CN 201220124034 CN 201220124034 U CN201220124034 U CN 201220124034U CN 202615028 U CN202615028 U CN 202615028U
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Abstract
The utility model discloses a dual-waveband lens group structure. The dual-waveband lens group structure is provided with a lens group Gn having negative focal power, a diaphragm and a lens group Gp having positive focal power. The lens group Gn having the negative focal power is provided with a first lens, a second lens and a third lens arranged successively along a side of an object. The first lens is a convex-concave lens. The second lens is a biconcave lens. And the third lens is a convex-concave lens. The lens group Gp having the positive focal power is provided with a fourth lens, a fifth lens, a sixth lens, a seventh lens, an eighth lens and a ninth lens arranged successively along a side of the object. The fourth lens is a biconvex lens. The fifth lens is convex-concave lens. The sixth lens is a biconvex lens. The seventh lens is a biconcave lens. The eighth lens is a biconvex lens. And the ninth lens is a convex-concave lens. The second lens and the third lens form a glued assembly. The fourth lens and the fifth lens form a glued assembly. The sixth lens and the seventh lens form a glued assembly. By using the dual-waveband lens group structure provided by the utility model, the monitored object can be displayed clearly no matter in a condition with daylight visible light illumination or a condition with night infrared ray illumination. And no blurring phenomenon occurs.
Description
Technical field
The utility model belongs to the optical, mechanical and electronic integration field, relates to the confocal high resolving power eyeglass group structure of a kind of two waveband.
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 lens mainly is to be directed against visible light condition design on daytime, and people are as long as can see that under the visible light condition monitored object has just met the demands.Yet,, when requiring night visible light can not be arranged in a lot of monitoring occasions; Generally can only be equipped with the sightless infrared light of human eye; At this moment because common lens is not considered infrared light in design, the imaging to infrared light is not optimized, because infrared light is different with wavelength of visible light; Can squint in the image planes position that they form images, the phenomenon that shows be exactly under the infrared light condition image blur, image quality poor.This camera lens that just requires to use in the system not only will be considered visible light consideration infrared light, and the imaging of two wave bands all is optimized.Simultaneously, people also have higher requirement to the resolution of monitored picture, and the confocal high resolving power eyeglass group structure of two waveband of designing the proper focal length section is a development trend of having complied with monitoring trade, has vast market prospect.
Summary of the invention
The purpose of the utility model be design a kind of visual light imaging and infrared light form images can be confocal eyeglass group structure.
For realizing above-mentioned purpose; The lens combination Gn that the eyeglass group structure of the utility model has a negative power; Diaphragm; With the lens combination Gp that is disposed at negative lens group Gn, utilize the airspace between negative lens group Gn and the positive lens groups Gp to change the zoom of realizing 9-22mm with positive light coke as side.Said negative lens group Gn is contained in the preceding arrangement of mirrors tube that radially is provided with three guide pins; Positive lens groups Gp is contained in the back arrangement of mirrors tube that radially is provided with three guide pins; Preceding arrangement of mirrors tube and back arrangement of mirrors wound packages are in having the main tube of spirality groove; Forward and backward arrangement of mirrors tube passes through guide pin and is connected with main tube, and forward and backward arrangement of mirrors tube can be slided up and down at a main tube inside spin, adjusts cam through the preceding adjustment cam that respectively has three straight troughs of group before and after adjusting respectively with the back; Realize changing the airspace between negative lens group Gn and the positive lens groups Gp, thereby reach the purpose of zoom.
It is that convex-concave eyeglass, second lens are the 3rd lens of concave-concave eyeglass and convex-concave that negative lens group Gn in the utility model has by tactic first lens of object one side.It is the biconvex eyeglass that positive lens groups Gp in the utility model has by tactic the 4th lens of object one side; The 5th lens are the convex-concave eyeglass, and the 6th lens are the biconvex eyeglass, and the 7th lens are the concave-concave eyeglass; The 8th lens are the biconvex eyeglass, and the 9th lens are the convex-concave eyeglass; Wherein, described second lens and the 3rd lens are the gummed assembly, and the 4th lens and the 5th lens are the gummed assembly for gummed assembly, the 6th lens and the 7th lens.
Adopt the eyeglass group structure of above design can reach following optical index: focal distance f=9-22mm, field angle 2W=40 °-18 °, relative aperture F=1.6; The optical transfer function mtf value is when 120lp/mm, and the center reaches 0.65, and the edge reaches 0.5.
The utility model is through all being optimized imaging two wave bands, makes the imaging resolution of visible light on daytime reach the eyeglass group structure of 1,500,000 pixels.This camera lens cooperates matched camera, display monitoring target clearly under the visible light condition by day, and the details of display monitoring target to greatest extent; Simultaneously, do not need to regulate in addition the focusing of camera lens, use at night under the condition of infrared illumination, display monitoring target clearly blooming can not occur yet.This lens construction is compact, simple operation, and the utilization prospect is wide.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is done further detailed explanation:
Fig. 1 is the lens assembly structural drawing of the utility model;
Fig. 2 is the optical system synoptic diagram of the utility model.
Embodiment
Like Fig. 1, shown in 2; The eyeglass group structure of the utility model has the lens combination Gn 1 of a negative power; Diaphragm; With the lens combination Gp with positive light coke 2 that is disposed at negative lens group Gn 1, utilize the airspace between negative lens group Gn 1 and the positive lens groups Gp 2 to change the zoom of realizing 9-22mm as side.Said negative lens group Gn 1 is contained in the preceding arrangement of mirrors tube 3 that radially is provided with three guide pins; Positive lens groups Gp 2 is contained in the back arrangement of mirrors tube 4 that radially is provided with three guide pins; Preceding arrangement of mirrors tube 3 is contained in the main tube 5 of spirality groove with back arrangement of mirrors tube 4; Forward and backward arrangement of mirrors tube passes through guide pin and is connected with main tube 5, and forward and backward arrangement of mirrors tube can be slided up and down at main tube 5 inside spins, adjusts cam through the preceding adjustment cam that respectively has three straight troughs of group before and after adjusting respectively with the back; Realize changing the airspace between negative lens group Gn and the positive lens groups Gp, thereby reach the purpose of zoom.
It is that concave-concave eyeglass and the 3rd lens 13 are the convex-concave eyeglass for convex-concave eyeglass, second lens 12 that negative lens group Gn 1 in the utility model has by tactic first lens 11 of object one side.It is the biconvex eyeglass that positive lens groups Gp 2 in the utility model has by tactic the 4th lens 21 of object one side; The 5th lens 22 are the convex-concave eyeglass, and the 6th lens 23 are the biconvex eyeglass, and the 7th lens 24 are the concave-concave eyeglass; The 8th lens 25 are the biconvex eyeglass, and the 9th lens 26 are the convex-concave eyeglass; Wherein, described second lens 12 and the 3rd lens 13 are the gummed assembly, and the 4th lens 21 and the 5th lens 22 are the gummed assembly, and the 6th lens 23 and the 7th lens 24 are the gummed assembly.
Claims (2)
1. a two waveband lens wearer group structure is characterized in that: the lens combination Gp with positive light coke as side that it comprises lens combination Gn, the diaphragm of negative power and is disposed at negative lens group Gn; It is that convex-concave eyeglass, second lens are that concave-concave eyeglass and the 3rd lens are the convex-concave eyeglass that described negative lens group Gn has by tactic first lens of object one side; It is the biconvex eyeglass that described positive lens groups Gp has by tactic the 4th lens of object one side, and the 5th lens are the convex-concave eyeglass, and the 6th lens are the biconvex eyeglass, and the 7th lens are the concave-concave eyeglass, and the 8th lens are the biconvex eyeglass, and the 9th lens are the convex-concave eyeglass; Described second lens and the 3rd lens are the gummed assembly, and the 4th lens and the 5th lens are the gummed assembly for gummed assembly, the 6th lens and the 7th lens.
2. two waveband lens wearer according to claim 1 group structure, it is characterized in that: said negative lens group Gn is contained in the preceding arrangement of mirrors tube that radially is provided with three guide pins, and positive lens groups Gp is contained in the back arrangement of mirrors tube that radially is provided with three guide pins; Before arrangement of mirrors tube and back arrangement of mirrors wound packages in the main tube of spirality groove is arranged, preceding arrangement of mirrors tube is connected with main tube through guide pin with back arrangement of mirrors tube and slides up and down at master's inside spin.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN 201220124034 CN202615028U (en) | 2012-03-29 | 2012-03-29 | Dual-waveband lens group structure |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN 201220124034 CN202615028U (en) | 2012-03-29 | 2012-03-29 | Dual-waveband lens group structure |
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CN202615028U true CN202615028U (en) | 2012-12-19 |
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CN 201220124034 Expired - Fee Related CN202615028U (en) | 2012-03-29 | 2012-03-29 | Dual-waveband lens group structure |
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Cited By (4)
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 |
TWI595262B (en) * | 2016-07-08 | 2017-08-11 | 黃俊裕 | Imaging Lens |
CN109324401A (en) * | 2018-11-23 | 2019-02-12 | 福建福光股份有限公司 | 3 times of economical day and night confocal high definition glass flow zoom lens of one kind and its imaging method |
CN109470157A (en) * | 2018-12-27 | 2019-03-15 | 博众精工科技股份有限公司 | Imaging system and device for inner hole detection |
-
2012
- 2012-03-29 CN CN 201220124034 patent/CN202615028U/en not_active Expired - Fee Related
Cited By (7)
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 |
TWI595262B (en) * | 2016-07-08 | 2017-08-11 | 黃俊裕 | Imaging Lens |
US11042008B2 (en) | 2016-07-08 | 2021-06-22 | Bokkeh Co., Ltd. | Imaging lens |
CN109324401A (en) * | 2018-11-23 | 2019-02-12 | 福建福光股份有限公司 | 3 times of economical day and night confocal high definition glass flow zoom lens of one kind and its imaging method |
CN109470157A (en) * | 2018-12-27 | 2019-03-15 | 博众精工科技股份有限公司 | Imaging system and device for inner hole detection |
CN109470157B (en) * | 2018-12-27 | 2023-10-13 | 博众精工科技股份有限公司 | Imaging system and device for inner hole detection |
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C17 | Cessation of patent right | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121219 Termination date: 20130329 |