CN102364372A - Multispectral refraction-reflection type optical system - Google Patents
Multispectral refraction-reflection type optical system Download PDFInfo
- Publication number
- CN102364372A CN102364372A CN2011103445605A CN201110344560A CN102364372A CN 102364372 A CN102364372 A CN 102364372A CN 2011103445605 A CN2011103445605 A CN 2011103445605A CN 201110344560 A CN201110344560 A CN 201110344560A CN 102364372 A CN102364372 A CN 102364372A
- Authority
- CN
- China
- Prior art keywords
- multispectral
- optical system
- mirror
- refraction
- reflection type
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Lenses (AREA)
Abstract
The invention discloses a multispectral refraction-reflection type optical system. The multispectral refraction-reflection type optical system comprises a refraction-reflection type afocal telescope system and a long-wave infrared imaging system, wherein the refraction-reflection type afocal telescope system comprises a spherical fairing, a scanning plane reflecting mirror, a primary reflecting mirror and a secondary reflecting mirror; the long-wave infrared imaging system comprises a tilted reflecting mirror, an image offsetting rotating prism, an optical imaging component group and a detector; and collimation lens groups are arranged between the primary reflecting mirror and the secondary reflecting mirror and close to the primary reflecting mirror. The multispectral refraction-reflection type optical system has the advantages that: the spatial dimension is compact, the weight of an optical system is reduced, the system stiffness is improved, and the high-precision optical axis pointing is facilitated; and the multispectral refraction-reflection type optical system is suitable for meeting the requirement of comprehensively considering quick search, the precise pointing of aiming lines, the detection of multispectral broad wave bands and system compactness, and has high radiation transmission efficiency, simple aberration balance, and low processing, detection, assembly and adjustment cost.
Description
Technical field
The invention belongs to the ray machine electro-technical field, be specifically related to a kind of multispectral refractive and reflective optical system.
Background technology
In space flight and aviation military affairs and scientific research field; The technical scheme relevant with the present invention mainly contains five characteristics: 1) the most reflective master beam systems that contract that adopt of the optical system of larger caliber (diameter>150 mm) re-use refractive optical system and carry out optical beam transformation and aberration balancing; 2) profile, size, weight, center of gravity, vibration, temperature and other space and the empty day environmental suitability to the ray machine electric system has strict requirement; 3) in the system that requires the high precision boresight to point to, use the thick compound optical axis control technology that combines of pointing to and accurately point among a small circle on a large scale; 4) form images active-passive detection and spectral analysis requirement of broadband; 5) satisfying the cost that reduces total system under the prerequisite that application-specific requires as far as possible from design.
In space flight and aviation military affairs and scientific research field; The technical scheme relevant with the present invention mainly contains four kinds: 1) use Cassegrain two-mirror system and refraction type rear optical system; Plane of scanning motion catoptron is set before primary mirror realizes slightly pointing on a large scale, behind secondary mirror, quick titling mirror is set and realizes that the high precision optical axis points among a small circle through optical beam transformation; 2) Cassegrain two-mirror system and refraction type rear optical system are provided with plane of scanning motion catoptron and realize slightly pointing on a large scale before primary mirror, the unitary rotation with optical system behind secondary mirror replaces plane of scanning motion catoptron to rotate, and realizes slightly pointing on a large scale; 3), quick titling mirror is set again realizes that the high precision optical axis points among a small circle to replace the Cassegrain two-mirror system from the axle three-mirror system; 4) similar first kind of scheme replaces the Cassegrain two-mirror system with refractive optical system.
For the 1st), 2) the kind scheme; Cassegrain is used parabolic principal reflection mirror and hyperboloid secondary mirror; Perhaps in other form of distortion; Use two hyperboloids, parabolas to add approach such as ellipsoid, the aperture aspherical processing that relates to, detection and integration techno logy difficulty are big, cost is higher; For the 2nd) the kind scheme, optical system unitary rotation inertia is bigger, and the servocontrol difficulty increases; For the 1st), 2) the kind scheme, with three to six spherical reflectors and combine plane mirror to constitute all-mirror optics, realizing ultra multispectral sensing, but the visual field is less, blocking between the catoptron causes radiation delivery efficient not high; For the 3rd) the kind scheme, less from axle three-mirror system visual field, processing, detection and integration techno logy difficulty are big, cost is higher; For the 4th) the kind scheme, realize that bigbore optical system difficulty is big, cost is higher, be difficult to realize multispectral high performance system.
Summary of the invention
In order to overcome the above-mentioned shortcoming of prior art, the invention provides a kind of multispectral refractive and reflective optical system.
The technical solution adopted for the present invention to solve the technical problems is: a kind of multispectral refractive and reflective optical system comprises that catadioptric formula do not have burnt telescopic system and LONG WAVE INFRARED imaging system; Said catadioptric formula does not have burnt telescopic system and comprises sphere radome fairing, plane of scanning motion catoptron, principal reflection mirror and secondary mirror; And the vertex curvature center of the centre of sphere, principal reflection mirror and secondary mirror reflecting surface that sphere radome fairing surfaces externally and internally is common overlaps with the rotation center of plane of scanning motion catoptron, forms homocentric optical system; Said LONG WAVE INFRARED imaging system comprises inclined mirror, the picture that disappears revolves prism, optical imagery element group and detector.
Between principal reflection mirror and secondary mirror, and collimation lens set is set near the principal reflection mirror.
Said plane of scanning motion catoptron is the plane of scanning motion catoptron that is used for optical axis sensing on a large scale.
Said principal reflection mirror is the symmetrical loop concave principal reflection mirror of rotation.
Said secondary mirror is the symmetrical convex surface secondary mirror of rotation.
Compared with prior art; Good effect of the present invention is: the common centre of sphere, principal reflection mirror and the secondary mirror reflecting surface vertex curvature center of sphere radome fairing surfaces externally and internally overlaps with the rotation center of plane of scanning motion catoptron, promptly overlaps with the pupil center, forms homocentric optical system; The bulk that constitutes is compact; Reduced optical-mechanical system weight, improved system stiffness, be beneficial to and realize that the high precision optical axis points to; Use homocentric optical system to combine collimated light path that large area scanning mirror and accurate among a small circle the sensing are separately positioned on the entrance pupil of objective lens and the emergent pupil place of eyepiece group, carry out aberration correction, pupil coupling as revolving a prism and a composition as system through disappearing then.Be applicable to solve the accurate sensing of search, boresight fast that the problem that multispectral broadband is surveyed, system compact property is taken into account has higher radiation delivery efficient, simple aberration balancing, low processing and detects and debug cost.
Description of drawings
The present invention will explain through example and with reference to the mode of accompanying drawing, wherein:
Fig. 1 is a systematic schematic diagram of the present invention.
Embodiment
A kind of multispectral refractive and reflective optical system, as shown in Figure 1, comprise that catadioptric formula do not have burnt telescopic system and LONG WAVE INFRARED imaging system; Said catadioptric formula does not have burnt telescopic system and comprises sphere radome fairing 1, plane of scanning motion catoptron 2, principal reflection mirror 3, secondary mirror 4 and collimation lens set 5; Said LONG WAVE INFRARED imaging system comprises inclined mirror 6, the picture that disappears revolves prism 7, optical imagery element group 8 and detector 9.
Said sphere radome fairing 1 needs suitably to select dome material, technology and plating membrane system, to realize the multispectral imaging detecting function.
Said plane of scanning motion catoptron 2 is for being used for the plane of scanning motion catoptron of optical axis sensing on a large scale; Said principal reflection mirror 3 is the symmetrical loop concave principal reflection mirror of rotation; Said secondary mirror 4 is the symmetrical convex surface secondary mirror of rotation.
Use the thick plane of scanning motion catoptron 2 that points to of optical axis on a large scale; Use the folding inclined mirror 6 of optical axis 90 degree; Use the symmetrical concave surface principal reflection mirror 3 of rotation; Use the convex surface secondary mirror 4 of second reflection of rotation first transmission of symmetry, between the primary and secondary mirror, form image planes for the first time, and between the primary and secondary mirror, near the primary mirror, carry out forming emergent pupil after beam path alignment, the primary mirror; Realize the objective lens of the compact catadioptric formula telescopic system of passive multiband with above-mentioned combination of features.
In definite optical system initial parameter with before carrying out system aberration optimization; Make: the vertex curvature center of principal reflection mirror 3, secondary mirror 4 reflectings surface, the center of curvature of sphere radome fairing 1 surfaces externally and internally overlap with the center of pupil, and principal reflection mirror 3, secondary mirror 4 and sphere radome fairing 1 surfaces externally and internally are sphere.
The transmission course of the radiation of target (comprise self radiation, to the reflection of environmental radiation with to the reflection of active radiation) in system is following:
1) the sphere radome fairing 1 of wide spectrum was set before plane of scanning motion catoptron 2, the common centre of sphere in inside and outside surface of sphere radome fairing 1 is overlapped with the rotation center of plane of scanning motion catoptron 2, and overlap with the pupil center;
2) through 2 reflections of plane of scanning motion catoptron, carry out on a large scale optical axis slightly directly to, realize search fast;
3) dwindle beam cross section through principal reflection mirror 3, the optical axis coincidence that light path realization 180 is spent behind folding and the plane of scanning motion catoptron 2 is reverse;
4) first transmission, second face through secondary mirror 4 reflects; Folding once more 180 degree of optical axis; With optical axis coincidence behind the plane of scanning motion catoptron 2 in the same way; And blocked the middle body that incides the radiation on the principal reflection mirror 3 by plane of scanning motion catoptron 2, for the compactness in space, between principal reflection mirror 3 and secondary mirror 4, form first image planes;
5) the common centre of sphere, principal reflection mirror 3 and the secondary mirror 4 reflecting surface vertex curvature centers of sphere radome fairing 1 surfaces externally and internally overlap with the rotation center of plane of scanning motion catoptron 2, promptly overlap with the pupil center, form homocentric optical system;
6) for the compactness of structure, after first image planes, 5 pairs of light paths of collimation lens set are set near the principal reflection mirror 3 collimate and aberration correction, near collimation lens, after the primary mirror, form pupil;
7) 6 pairs of light paths of inclined mirror are set to carry out 90 degree folding at the pupil place; Inclined mirror 6 rotates at two-dimensional directional; Wherein: when meridian direction scans,, realize that the position of image planes on detector is static relatively, guarantee the integral time of forming images as galvanometer; When another direction is adjusted, use as quick titling mirror, realize that the high precision optical axis points among a small circle;
8) in the parallel light path of inclined mirror 6, revolving the picture that produces when prism 7 is eliminated 2 scannings of plane of scanning motion catoptron with the picture that disappears revolves;
9) parallel light path that disappears as supination carries out optical beam transformations such as aberration balancing, cold stop coupling with optics imaging element group 8.
Claims (5)
1. multispectral refractive and reflective optical system is characterized in that: comprise that catadioptric formula do not have burnt telescopic system and LONG WAVE INFRARED imaging system; Said catadioptric formula does not have burnt telescopic system and comprises sphere radome fairing, plane of scanning motion catoptron, principal reflection mirror and secondary mirror; And the vertex curvature center of the centre of sphere, principal reflection mirror and secondary mirror reflecting surface that sphere radome fairing surfaces externally and internally is common overlaps with the rotation center of plane of scanning motion catoptron, forms homocentric optical system; Said LONG WAVE INFRARED imaging system comprises inclined mirror, the picture that disappears revolves prism, optical imagery element group and detector.
2. multispectral refractive and reflective optical system according to claim 1 is characterized in that: between principal reflection mirror and secondary mirror, and collimation lens set is set near the principal reflection mirror.
3. multispectral refractive and reflective optical system according to claim 1 is characterized in that: said plane of scanning motion catoptron is the plane of scanning motion catoptron that is used for optical axis sensing on a large scale.
4. multispectral refractive and reflective optical system according to claim 1 is characterized in that: said principal reflection mirror is the symmetrical loop concave principal reflection mirror of rotation.
5. multispectral refractive and reflective optical system according to claim 1 is characterized in that: said secondary mirror is the symmetrical convex surface secondary mirror of rotation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103445605A CN102364372A (en) | 2011-11-04 | 2011-11-04 | Multispectral refraction-reflection type optical system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103445605A CN102364372A (en) | 2011-11-04 | 2011-11-04 | Multispectral refraction-reflection type optical system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102364372A true CN102364372A (en) | 2012-02-29 |
Family
ID=45690942
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103445605A Pending CN102364372A (en) | 2011-11-04 | 2011-11-04 | Multispectral refraction-reflection type optical system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102364372A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102645729A (en) * | 2012-04-24 | 2012-08-22 | 中国电子科技集团公司第十一研究所 | Infrared optical system |
| CN103268008A (en) * | 2013-05-16 | 2013-08-28 | 西北工业大学 | Long-focus and high-resolution optical system |
| CN103792652A (en) * | 2014-02-27 | 2014-05-14 | 四川九洲电器集团有限责任公司 | Fold-back type optical system combining active/passive detection |
| CN107643525A (en) * | 2017-08-24 | 2018-01-30 | 南京理工大学 | Linear array laser radar based on 45 ° of tilting mirrors is circumferential without as revolving imaging system |
| CN109254392A (en) * | 2018-08-22 | 2019-01-22 | 哈尔滨新光光电科技有限公司 | A kind of miniaturization rolling-backstroke long wave refrigeration optical system |
| CN109298517A (en) * | 2018-11-05 | 2019-02-01 | 中国航空工业集团公司洛阳电光设备研究所 | A kind of multispectral coaxial refraction-reflection type non-focus optical system |
| CN110673317A (en) * | 2019-10-12 | 2020-01-10 | 中国电子科技集团公司第十一研究所 | Coaxial multiband reflection type image-eliminating rotation optical system |
| CN113612534A (en) * | 2021-07-01 | 2021-11-05 | 中国科学院西安光学精密机械研究所 | Optical system of miniaturized space laser communication terminal and use method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4934801A (en) * | 1984-11-29 | 1990-06-19 | Lockheed Missiles & Space Company, Inc. | Optical imaging system |
| EP0490497A2 (en) * | 1990-12-13 | 1992-06-17 | Hughes Aircraft Company | Simultaneous dual field of view sensor |
| CN1525202A (en) * | 2003-09-18 | 2004-09-01 | 中国科学院上海技术物理研究所 | Non image rotation 45 degree mirror scanning optical system |
| CN1865933A (en) * | 2006-06-21 | 2006-11-22 | 武汉大学 | High-power ferro-resonant fluorescent laser radar |
-
2011
- 2011-11-04 CN CN2011103445605A patent/CN102364372A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4934801A (en) * | 1984-11-29 | 1990-06-19 | Lockheed Missiles & Space Company, Inc. | Optical imaging system |
| EP0490497A2 (en) * | 1990-12-13 | 1992-06-17 | Hughes Aircraft Company | Simultaneous dual field of view sensor |
| CN1525202A (en) * | 2003-09-18 | 2004-09-01 | 中国科学院上海技术物理研究所 | Non image rotation 45 degree mirror scanning optical system |
| CN1865933A (en) * | 2006-06-21 | 2006-11-22 | 武汉大学 | High-power ferro-resonant fluorescent laser radar |
Non-Patent Citations (2)
| Title |
|---|
| 王亚平等: "反射式红外成象系统的设计考虑", 《红外与激光工程》 * |
| 黄元申等: "同心三反射镜光学系统研究", 《光学仪器》 * |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102645729A (en) * | 2012-04-24 | 2012-08-22 | 中国电子科技集团公司第十一研究所 | Infrared optical system |
| CN103268008A (en) * | 2013-05-16 | 2013-08-28 | 西北工业大学 | Long-focus and high-resolution optical system |
| CN103268008B (en) * | 2013-05-16 | 2015-05-13 | 西北工业大学 | Long-focus and high-resolution optical system |
| CN103792652A (en) * | 2014-02-27 | 2014-05-14 | 四川九洲电器集团有限责任公司 | Fold-back type optical system combining active/passive detection |
| CN103792652B (en) * | 2014-02-27 | 2016-06-08 | 四川九洲电器集团有限责任公司 | Zigzag type optical system in conjunction with active/passive detection |
| CN107643525A (en) * | 2017-08-24 | 2018-01-30 | 南京理工大学 | Linear array laser radar based on 45 ° of tilting mirrors is circumferential without as revolving imaging system |
| CN109254392A (en) * | 2018-08-22 | 2019-01-22 | 哈尔滨新光光电科技有限公司 | A kind of miniaturization rolling-backstroke long wave refrigeration optical system |
| CN109254392B (en) * | 2018-08-22 | 2019-06-14 | 哈尔滨新光光电科技有限公司 | A kind of miniaturization rolling-backstroke long wave refrigeration optical system |
| CN109298517A (en) * | 2018-11-05 | 2019-02-01 | 中国航空工业集团公司洛阳电光设备研究所 | A kind of multispectral coaxial refraction-reflection type non-focus optical system |
| CN109298517B (en) * | 2018-11-05 | 2020-10-30 | 中国航空工业集团公司洛阳电光设备研究所 | Multispectral coaxial catadioptric afocal optical system |
| CN110673317A (en) * | 2019-10-12 | 2020-01-10 | 中国电子科技集团公司第十一研究所 | Coaxial multiband reflection type image-eliminating rotation optical system |
| CN113612534A (en) * | 2021-07-01 | 2021-11-05 | 中国科学院西安光学精密机械研究所 | Optical system of miniaturized space laser communication terminal and use method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102364372A (en) | Multispectral refraction-reflection type optical system | |
| CN107167904B (en) | Common-aperture reflection type multi-spectrum optical system | |
| US7952799B2 (en) | Extreme broadband compact optical system with multiple fields of view | |
| US6333811B1 (en) | All-reflective zoom optical imaging system | |
| CN102736237B (en) | Optical system for space astronomical observation infra-red telescope | |
| US9348126B2 (en) | Derived all-reflective afocal optical system with aspheric figured beam steering mirror | |
| CN102252756B (en) | Front-mounted optical system of satellite-borne differential absorption spectrometer | |
| CN111123503B (en) | Coaxial four-mirror refraction-reflection type low-distortion telescopic optical system | |
| CN110989152A (en) | Common-path flexible off-axis four-inverse focal length optical system | |
| US10261297B2 (en) | Method and apparatus for remote imaging | |
| CN105259647A (en) | Large visual field co-off-axis integrated three-mirror space optical system | |
| CN105334607A (en) | No-blocking pure reflection optical system | |
| CN103293666A (en) | Coaxial four-mirror auto-zooming optical system with spherical secondary mirror | |
| CN110579859A (en) | compact type long-focal-length star sensor telecentric optical system | |
| CN102128680B (en) | Telecentric off-axis three-mirror anastigmatic imaging system with three coaxial reflectors at angle of field of view of 10 degrees | |
| CN112034605A (en) | Catadioptric Golay3 sparse aperture optical system | |
| CN103852889A (en) | Onboard nacelle optical system for overhead operation | |
| US11567309B2 (en) | On-axis four mirror anastigmat telescope | |
| CN113031238A (en) | Multi-mirror integrated large-view-field long-focus off-axis four-mirror optical system | |
| CN114236798A (en) | Catadioptric afocal optical system | |
| CN107807441B (en) | catadioptric optical imaging system | |
| CN114137707B (en) | Compact long-focus athermalized star sensor optical system | |
| CN107817598A (en) | A kind of long-focus Shared aperture reflective optical system | |
| CN220040862U (en) | Folding type medium wave infrared vibration scanning optical system | |
| CN114280763B (en) | Wide-temperature high-pneumatic light-weight type common-shrinkage-beam visible medium wave infrared scanning image stabilizing optical system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20120229 |