CN105759419A - Medium wave infrared image space scanning optical system having oscillating mirror - Google Patents
Medium wave infrared image space scanning optical system having oscillating mirror Download PDFInfo
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- CN105759419A CN105759419A CN201610217307.6A CN201610217307A CN105759419A CN 105759419 A CN105759419 A CN 105759419A CN 201610217307 A CN201610217307 A CN 201610217307A CN 105759419 A CN105759419 A CN 105759419A
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- mirror
- image space
- lens group
- oscillating mirror
- wave infrared
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
- G02B26/08—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
- G02B26/10—Scanning systems
- G02B26/105—Scanning systems with one or more pivoting mirrors or galvano-mirrors
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Lenses (AREA)
- Mechanical Optical Scanning Systems (AREA)
Abstract
A medium wave infrared image space scanning optical system having an oscillating mirror is disclosed. The medium wave infrared image space scanning optical system comprises a preposed lens group 1, the oscillating mirror 2, a fixed reflecting mirror 3 and an imaging lens group 4, wherein the preposed lens group comprises a preposed lens A5 and a preposed lens B6; when a light ray passes through the preposed lens A and the preposed lens B, the light ray is focused on a primary image face 7 and then transmitted onto the oscillating mirror, a curvature center of the primary image face coincides with a gyration center of the oscillating mirror, the light ray is transmitted to the fixed reflecting mirror after being reflected via the oscillating mirror, the light ray is finally transmitted to the imaging lens group via the mixed reflecting mirror, and an object is scanned via rotation of the oscillating mirror.
Description
One, technical field
The present invention relates to scanning optical field, be specifically related to a kind of medium-wave infrared image space scanning optics with pendulum mirror
Two, background technology
About the medium-wave infrared image space scanning optics with pendulum mirror, not yet there is publication.
According to retrieval, the medium-wave infrared target seeker major way of current scanline form is the scanning of thing side, another it has been proposed that the primitive form of image space scanning.Two ways is respectively arranged with pluses and minuses.
Thing side's scanning form is made up of gazing type thermal infrared imager and dimensional turntable, dimensional turntable drive gazing type thermal infrared imager complete machine to carry out two-dimensional rotary, and therefore dimensional turntable to carry the weight of thermal infrared imager complete machine, and its volume is bigger；Secondly as thermal imaging system cold stop is away from system first mirror, therefore first aperture of mirror is bigger；Again, scanning field of view determines system windows caliber size, and the optical system often window bore of thing side's scanning form is very big；In addition Infrared Imaging Seeker optical system due to the load of turntable relatively big, rotational angular velocity receives restriction, and therefore scanning speed is slower.
There has been proposed the optical system of image space scanning form at present.Image space scanning optics is based on secondary imaging optical system, compared with scanning with thing side, diaphragm can be shifted to an earlier date when design, it is possible to effectively reduce the bore of system bore and window glass, can effectively reduce package size and weight in the means passing through to add the light paths of turning back such as reflecting mirror.It is made up of two parts, front group by big visual field Scenery Imaging in the image planes of bending, rear group scanning bending image planes, and secondary imaging is on refrigeration detector focal plane.This form is the primitive form of image space scanning, although reduce system bore, but dimensional turntable load does not alleviate, remain as refrigeration detector and after organize imaging lens.
Three, accompanying drawing explanation
Fig. 1 is the medium-wave infrared image space scanning optics structural representation with pendulum mirror of the present invention
In figure: 1 preset lens group, 2 pendulum mirror, 3 stationary mirrors, 4 relay lens groups, 5 preset lens A, 6 preset lens B, 7 image planes
Four, summary of the invention
Goal of the invention: by studying the primitive form of image space scanning and adding the change of design condition between the improved form after putting mirror, design the medium-wave infrared image space scanning optics with pendulum mirror, realize on the basis of its primitive form, reduce space further, reduce slew gear load, thus adding fast scan speed, and reduce system complexity
Technical scheme: a kind of medium-wave infrared image space scanning optics with pendulum mirror, including preset lens group, pendulum mirror, stationary mirror, imaging lens group, wherein preset lens group includes preset lens A, preset lens B, light focuses in image planes after preset lens A, preset lens B, it is delivered on pendulum mirror again, light is delivered on stationary mirror after pendulum mirror reflection, and stationary mirror light the most at last passes to imaging lens group；By putting the rotation of mirror, it is achieved the scanning to target.
Wherein the center of curvature of image planes 7 overlaps with the centre of gyration of pendulum mirror 2.
Technique effect: with same design index and already with thing side scanning form optical system complete machine compared with, size is contracted to Φ 200mm × 300mm by Φ 300mm × 500mm；Complete machine weight is less of 7kg by original 15kg, and two dimension slew gear load is reduced to 0.5kg by 3kg, thus adding scanning speed.Therefore the optical system of the image space scanning form with pendulum mirror reduces the complexity of system, effectively reduces system bulk and weight, increases scanning speed.
Five, detailed description of the invention
Medium-wave infrared image space scanning optics with pendulum mirror, including preset lens group 1, pendulum mirror 2, stationary mirror 3, imaging lens group 4, wherein preset lens group includes preset lens A5, preset lens B6, light focuses in image planes 7 after preset lens A5, preset lens B6, it is delivered on pendulum mirror again, wherein the center of curvature of image planes overlaps with the centre of gyration of pendulum mirror, and light is delivered on stationary mirror after pendulum mirror reflection, and stationary mirror light the most at last passes to imaging lens group；By putting the rotation of mirror, it is achieved the scanning to target.
Claims (2)
1. the medium-wave infrared image space scanning optics with pendulum mirror, it is characterized in that: include preset lens group (1), pendulum mirror (2), stationary mirror (3), imaging lens group (4), wherein preset lens group includes preset lens A (5), preset lens B (6), light is through preset lens A (5), focus on an image planes (7) after preset lens B (6), it is delivered on pendulum mirror (2) again, light is delivered on stationary mirror (3) after pendulum mirror (2) reflection, stationary mirror (3) light the most at last passes to imaging lens group (4)；By putting the rotation of mirror (2), it is achieved the scanning to target.
2. a kind of medium-wave infrared image space scanning optics with pendulum mirror according to claim, it is characterised in that: wherein the center of curvature of an image planes (7) overlaps with the centre of gyration of pendulum mirror (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610217307.6A CN105759419A (en) | 2016-04-08 | 2016-04-08 | Medium wave infrared image space scanning optical system having oscillating mirror |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610217307.6A CN105759419A (en) | 2016-04-08 | 2016-04-08 | Medium wave infrared image space scanning optical system having oscillating mirror |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105759419A true CN105759419A (en) | 2016-07-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610217307.6A Pending CN105759419A (en) | 2016-04-08 | 2016-04-08 | Medium wave infrared image space scanning optical system having oscillating mirror |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106643689A (en) * | 2016-09-19 | 2017-05-10 | 中国运载火箭技术研究院 | Multi-mode common-optical path pose measuring apparatus |
| CN107907979A (en) * | 2017-11-17 | 2018-04-13 | 北京长峰科威光电技术有限公司 | A kind of space optical axis offset method of refrigeration mode infrared thermal imaging camera lens |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2247090A (en) * | 1990-07-24 | 1992-02-19 | Barr & Stroud Ltd | Flat-field scanner |
| CN101158746A (en) * | 2007-11-27 | 2008-04-09 | 北京空间机电研究所 | Space large caliber compression light beam relaying scanned imagery optical system |
| CN204539333U (en) * | 2015-03-19 | 2015-08-05 | 北京空间机电研究所 | A kind of pair sweep mechanism that adopts realizes high-altitude distant reconnaissance supervision imaging system |
-
2016
- 2016-04-08 CN CN201610217307.6A patent/CN105759419A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2247090A (en) * | 1990-07-24 | 1992-02-19 | Barr & Stroud Ltd | Flat-field scanner |
| CN101158746A (en) * | 2007-11-27 | 2008-04-09 | 北京空间机电研究所 | Space large caliber compression light beam relaying scanned imagery optical system |
| CN204539333U (en) * | 2015-03-19 | 2015-08-05 | 北京空间机电研究所 | A kind of pair sweep mechanism that adopts realizes high-altitude distant reconnaissance supervision imaging system |
Non-Patent Citations (6)
| Title |
|---|
| 于洋等: "面阵探测器连续扫描成像光学系统", 《红外与激光工程》 * |
| 卢晓东等: "《导弹制导系统原理》", 30 September 2015, 国防工业出版社 * |
| 孙露露等: "像方扫描机制的红外成像制导光学系统设计", 《电光与控制》 * |
| 李刚等: "基于像方摆扫的空间红外双波段光学系统设计", 《红外与激光工程》 * |
| 赵新亮等: "长波双视场扫描型红外光学系统设计", 《红外与激光工程》 * |
| 邓键等: "像方扫描技术研究", 《应用光学》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106643689A (en) * | 2016-09-19 | 2017-05-10 | 中国运载火箭技术研究院 | Multi-mode common-optical path pose measuring apparatus |
| CN107907979A (en) * | 2017-11-17 | 2018-04-13 | 北京长峰科威光电技术有限公司 | A kind of space optical axis offset method of refrigeration mode infrared thermal imaging camera lens |
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Application publication date: 20160713 |
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| RJ01 | Rejection of invention patent application after publication |