CN102411194A - Hundredfold continuous zooming CCD (Charge Coupled Device) lens optical system - Google Patents
Hundredfold continuous zooming CCD (Charge Coupled Device) lens optical system Download PDFInfo
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- CN102411194A CN102411194A CN2011103727870A CN201110372787A CN102411194A CN 102411194 A CN102411194 A CN 102411194A CN 2011103727870 A CN2011103727870 A CN 2011103727870A CN 201110372787 A CN201110372787 A CN 201110372787A CN 102411194 A CN102411194 A CN 102411194A
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Abstract
The invention discloses a hundredfold continuous zooming CCD (Charge Coupled Device) lens optical system, which consists of a front fixing group, a zooming group, a compensating group, a back fixing group and a CCD target surface, wherein the front fixing group consists of a glued lens, a negative meniscus lens and a positive meniscus lens; the zooming group consists of a positive lens, a double concave lens and a convex-concave glued lens; the compensating group consists of a plane convex lens, a double convex glued lens and a double convex single positive lens; and the back fixing group consists of two glued lenses. Compared with the prior art, the continuous zooming CCD lens optical system has the advantages of simple structure, convenience for adjusting, focal distance 15-1,500 millimeters, zooming time 100, F factor 1/5.6, large field, long focal distance, continuous zooming and capability of meeting the using requirements.
Description
Technical field
The invention belongs to the optical design technical field, is specifically related to a kind of hundred times of continuous vari-focus CCD lens optical systems.
Background technology
Along with the extensive and extension of monitoring distance that the photoelectricity monitoring is used, big multiplying power zoom lens is used more and more widely particularly present land and sea border defense supervisory system with the advantage of its distinctive big visual field, long-focus and continuous zoom.Big multiplying power zoom lens has fragmentary product at present at home; But only limit to technology; Quality requirements is not high, and the high-tech application of real meaning and the application of good image quality still are with the product of developed countries such as Japan, the U.S., and China receives the restriction of technology barriers and purchase channel.So, develop the big visual field of China, at a distance tracing and monitoring is used, it is imperative to base oneself upon the high-quality big multiplying power zoom lens of own development.
Summary of the invention
The purpose of the invention provides a kind of change multiple proportions and is 100 times, and the F number is 1/5.6 continuous vari-focus CCD lens optical system.Advantage with big visual field, long-focus and continuous zoom realizes omnidistance blur-free imaging.
Realize that the technical scheme that the object of the invention is taked is: these hundred times of continuous vari-focus CCD lens optical systems; Doubly a group, compensation group, back fixation group and CCD target surface constitute by preceding fixation group, change; It is characterized in that: fixation group is made up of balsaming lens, diverging meniscus lens and positive meniscus lens before said; Said change is doubly organized by positive lens, biconcave lens and convex-concave balsaming lens and is formed; Said compensation group is made up of plano-convex lens, biconvex balsaming lens and biconvex single-positive-lens, and said back fixation group is made up of two balsaming lenss.
Said change is doubly organized and the compensation group realizes continuous vari-focus through regulating therebetween at a distance from changing.
The focal length that fixation group, change times group, compensation group and back fixation group constitute before said is 15mm～1500mm, and the F number is 1/5.6.
Adopt the beneficial effect of technique scheme: the preceding fixation group of these hundred times of continuous vari-focus CCD lens optical systems is made up of three lens, is used for the target of different distance is focused on; Become doubly to organize and constitute the realization continuous zoom by a positive lens, a biconcave lens and a convex-concave balsaming lens; The compensation group is made up of a plano-convex lens, a biconvex balsaming lens and a biconvex single-positive-lens, realizes that continuous change doubly compensates, and becomes times group and compensation group and realizes continuous vari-focus at a distance from variation therebetween through adjustment; Back fixation group adopts two balsaming lenss to constitute, and realizes the aberration balancing of system, is imaged at last on 1/2 inch the CCD target surface.Compared with prior art, this continuous vari-focus CCD lens optical system has simple in structure, easy to adjust, and focal length is 15mm～1500mm, becomes multiple proportions and is 100 times, and the F number is 1/5.6.Have the advantage of big visual field, long-focus and continuous zoom, satisfy request for utilization.
Description of drawings
Below in conjunction with accompanying drawing specific embodiment of the present invention is done further detailed explanation.
Fig. 1 is the structural representation of 15mm for short focal length.
Fig. 2 is the structural representation of 750mm for mid-focal length.
Fig. 3 is the structural representation of 1500mm for long-focus.
Fig. 4 is that the MTF when satisfying Nyquist frequency 62.5lp/mm passes letter figure under short burnt situation.
Fig. 5 is under middle burnt situation, and the MTF when satisfying Nyquist frequency 62.5lp/mm passes letter figure.
Fig. 6 is that the MTF when satisfying Nyquist frequency 62.5lp/mm passes letter figure under long burnt situation.
Embodiment
Like Fig. 1,2, hundred times of continuous vari-focus CCD of the 15mm～1500mm/F5.6 lens optical system shown in 3; Be four group of 16 chip optical system; Fixation group before being made up of a balsaming lens 1, a diverging meniscus lens 2 and a positive meniscus lens 3 is used for the target of different distance is focused on.Form by a positive lens 4, a biconcave lens 5 and a convex-concave balsaming lens 6 and to become doubly group, realize continuous zoom.Form the compensation group by a plano-convex lens 7, a biconvex balsaming lens 8 and a biconvex single-positive-lens 9, realize that continuous change doubly compensates; Adopt two balsaming lenss 10,11 to form the back fixation group, realize the aberration balancing of system, become doubly group and compensation group and realize continuous vari-focus, be imaged at last on 1/2 inch the CCD target surface 12 through regulating therebetween at a distance from changing (Fig. 1,2, different interval shown in 3).Like Fig. 4,5, shown in 6, focal length is 15mm～1500mm, becomes multiple proportions and is 100 times, and the F number is 1/5.6 continuous vari-focus CCD lens optical system, has the advantage of big visual field, long-focus and continuous zoom, realizes omnidistance blur-free imaging.
Claims (3)
1. one kind hundred times continuous vari-focus CCD lens optical systems; Doubly a group, compensation group, back fixation group and CCD target surface constitute by preceding fixation group, change; It is characterized in that: fixation group is made up of balsaming lens, diverging meniscus lens and positive meniscus lens before said; Said change is doubly organized by positive lens, biconcave lens and convex-concave balsaming lens and is formed, and said compensation group is made up of plano-convex lens, biconvex balsaming lens and biconvex single-positive-lens, and said back fixation group is made up of two balsaming lenss.
2. based on hundred times of continuous vari-focus CCD lens optical systems shown in the claim 1, it is characterized in that: said change is doubly organized and the compensation group realizes continuous vari-focus through regulating therebetween at a distance from changing.
3. according to hundred times of continuous vari-focus CCD lens optical systems shown in the claim 1, it is characterized in that: the focal length that fixation group, change times group, compensation group and back fixation group constitute before said is 15mm～1500mm, and the F number is 1/5.6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110372787.0A CN102411194B (en) | 2011-11-22 | 2011-11-22 | Hundredfold continuous zooming CCD (Charge Coupled Device) lens optical system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110372787.0A CN102411194B (en) | 2011-11-22 | 2011-11-22 | Hundredfold continuous zooming CCD (Charge Coupled Device) lens optical system |
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| CN102411194A true CN102411194A (en) | 2012-04-11 |
| CN102411194B CN102411194B (en) | 2014-04-02 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107643591A (en) * | 2017-11-01 | 2018-01-30 | 河南中光学集团有限公司 | A kind of antidamping Penetrating Fog visible light lens and implementation method |
| CN114047616A (en) * | 2021-11-23 | 2022-02-15 | 中国航空工业集团公司洛阳电光设备研究所 | Medium wave infrared continuous zooming optical system with meter-level long focal length and hundred-fold variable power ratio |
| CN114114587A (en) * | 2021-11-02 | 2022-03-01 | 江西高瑞光电股份有限公司 | Split type stereoscopic zoom lens convenient to dismouting is overhauld |
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| US20070279763A1 (en) * | 2006-05-31 | 2007-12-06 | Canon Kabushiki Kaisha | Zoom lens and image pickup apparatus having the same |
| CN101109843A (en) * | 2006-07-20 | 2008-01-23 | 株式会社尼康 | Zoom lens system, imaging apparatus, method for vibration reduction, and method for varying focal length |
| US20110199689A1 (en) * | 2010-02-16 | 2011-08-18 | Canon Kabushiki Kaisha | Optical system and optical apparatus |
| CN202351498U (en) * | 2011-11-22 | 2012-07-25 | 河南中光学集团有限公司 | Hundred-time continuous zoom charge coupled device (CCD) shot optical system |
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2011
- 2011-11-22 CN CN201110372787.0A patent/CN102411194B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070279763A1 (en) * | 2006-05-31 | 2007-12-06 | Canon Kabushiki Kaisha | Zoom lens and image pickup apparatus having the same |
| CN101109843A (en) * | 2006-07-20 | 2008-01-23 | 株式会社尼康 | Zoom lens system, imaging apparatus, method for vibration reduction, and method for varying focal length |
| US20110199689A1 (en) * | 2010-02-16 | 2011-08-18 | Canon Kabushiki Kaisha | Optical system and optical apparatus |
| CN202351498U (en) * | 2011-11-22 | 2012-07-25 | 河南中光学集团有限公司 | Hundred-time continuous zoom charge coupled device (CCD) shot optical system |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107643591A (en) * | 2017-11-01 | 2018-01-30 | 河南中光学集团有限公司 | A kind of antidamping Penetrating Fog visible light lens and implementation method |
| CN107643591B (en) * | 2017-11-01 | 2023-08-15 | 河南中光学集团有限公司 | Anti-attenuation fog-penetrating visible light lens and implementation method |
| CN114114587A (en) * | 2021-11-02 | 2022-03-01 | 江西高瑞光电股份有限公司 | Split type stereoscopic zoom lens convenient to dismouting is overhauld |
| CN114114587B (en) * | 2021-11-02 | 2023-10-03 | 江西高瑞光电股份有限公司 | Split type stereoscopic zoom lens convenient to disassemble, assemble and overhaul |
| CN114047616A (en) * | 2021-11-23 | 2022-02-15 | 中国航空工业集团公司洛阳电光设备研究所 | Medium wave infrared continuous zooming optical system with meter-level long focal length and hundred-fold variable power ratio |
| CN114047616B (en) * | 2021-11-23 | 2023-08-18 | 中国航空工业集团公司洛阳电光设备研究所 | Medium-wave infrared continuous zooming optical system with meter-level long focal length and hundred-fold zoom ratio |
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| CN102411194B (en) | 2014-04-02 |
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