CN202351498U - Hundred-time continuous zoom charge coupled device (CCD) shot optical system - Google Patents
Hundred-time continuous zoom charge coupled device (CCD) shot optical system Download PDFInfo
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- CN202351498U CN202351498U CN2011204657419U CN201120465741U CN202351498U CN 202351498 U CN202351498 U CN 202351498U CN 2011204657419 U CN2011204657419 U CN 2011204657419U CN 201120465741 U CN201120465741 U CN 201120465741U CN 202351498 U CN202351498 U CN 202351498U
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- balsaming
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Abstract
The utility model discloses a hundred-time continuous zoom charge coupled device (CCD) shot optical system, which is formed by a front fixed group, a time changing group, a compensation group, a back fixed group and a CCD target surface. The front fixed group is composed of a balsaming lens, a negative meniscus lens and a positive meniscus lens, the time changing group is composed of a positive lens, a double concave lens and a convex-concave balsaming lens, the compensation group is composed of a plano-convex lens, a double convex balsaming lens and a double convex single positive lens, and the back fixed group is composed of two balsaming lenses. Compared with the prior art, the hundred-time continuous zoom CCD shot optical system is simple in structure and convenient in adjustment, the focal length is 15mm-1500mm, the time changing ratio is 100 times, the number of an F is 1/5.6, and the optical system has the superiorities of large view field, long focal length and continuous time changing and meets using requirements.
Description
Technical field
The utility model is created and is belonged 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.
The utility model content
The purpose that the utility model is created 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.
The technical scheme that the purpose of realization the utility model 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 advantage.Have the advantage of big visual field, long-focus and continuous zoom, satisfy request for utilization.
Description of drawings
Be described in further detail below in conjunction with the specific embodiment of accompanying drawing the utility model.
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 |
|---|---|---|---|
| CN2011204657419U CN202351498U (en) | 2011-11-22 | 2011-11-22 | Hundred-time continuous zoom charge coupled device (CCD) shot optical system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204657419U CN202351498U (en) | 2011-11-22 | 2011-11-22 | Hundred-time continuous zoom charge coupled device (CCD) shot optical system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202351498U true CN202351498U (en) | 2012-07-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204657419U Expired - Fee Related CN202351498U (en) | 2011-11-22 | 2011-11-22 | Hundred-time continuous zoom charge coupled device (CCD) shot optical system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202351498U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102411194A (en) * | 2011-11-22 | 2012-04-11 | 河南中光学集团有限公司 | Hundredfold continuous zooming CCD (Charge Coupled Device) lens optical system |
-
2011
- 2011-11-22 CN CN2011204657419U patent/CN202351498U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102411194A (en) * | 2011-11-22 | 2012-04-11 | 河南中光学集团有限公司 | Hundredfold continuous zooming CCD (Charge Coupled Device) lens optical system |
| CN102411194B (en) * | 2011-11-22 | 2014-04-02 | 河南中光学集团有限公司 | Hundredfold continuous zooming CCD (Charge Coupled Device) lens optical system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120725 Termination date: 20151122 |
|
| EXPY | Termination of patent right or utility model |