CN101750754B - Field cut-off optical synthesis aperture imaging system - Google Patents
Field cut-off optical synthesis aperture imaging system Download PDFInfo
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- CN101750754B CN101750754B CN2008101885577A CN200810188557A CN101750754B CN 101750754 B CN101750754 B CN 101750754B CN 2008101885577 A CN2008101885577 A CN 2008101885577A CN 200810188557 A CN200810188557 A CN 200810188557A CN 101750754 B CN101750754 B CN 101750754B
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- 238000003384 imaging method Methods 0.000 title claims abstract description 53
- 230000003287 optical effect Effects 0.000 title claims abstract description 34
- 230000015572 biosynthetic process Effects 0.000 title claims abstract description 18
- 238000003786 synthesis reaction Methods 0.000 title claims abstract description 17
- 230000000007 visual effect Effects 0.000 claims description 5
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- 238000012634 optical imaging Methods 0.000 description 3
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Abstract
The present invention relates to a field cut-off optical synthesis aperture imaging system comprises a main mirror and a second mirror on a convergent optical path of the main mirror, wherein the main mirror is a flat mirror array composed of flat mirrors with small calibers; the second mirror comprises an imaging mirror, a collimating micro lens array and a collecting mirror which are vertically arranged on the same optical shaft in turn; the focus position of the imaging mirror and a position which is parallel to the imaging mirror form a once image surface; the focus position of the collecting mirror and a position which is parallel to the collecting mirror form a twice image surface; and the once image surface and the twice image surface are both at one exit side of an optical path. The present invention solves the technical problems of poor material uniformity, and inconvenient processing and assembly of an optical system with a large caliber in the background art, and has the advantages of simple structure, convenient use and the like.
Description
Technical field
The present invention relates to a kind of optical imaging method and equipment, a kind of high resolution optical imaging method and equipment.Relate in particular to a kind of field cut-off optical synthesis aperture imaging system.
Background technology
Optical imaging system is widely used at present, utilize the synthetic aperture principle that the research and development of corresponding optical system are also arranged simultaneously, traditional optics high-resolution imaging system, need design of Optical System to become bigbore monolithic primary mirror and secondary mirror optical system, because space flight earth observation, the resolution of the desired optical system of astronomical sight is more and more higher, so require the bore of optical system also increasing, referring to Fig. 1, present bigbore optical system is in the homogeneity of material, structural strength, processing, all run into great difficulty on a series of enforcement links such as assembling.Therefore, people begin then seek with the synthetic bigbore optical system primary mirror of small-bore eyeglass splicing, but the small-bore eyeglass of present technical requirement must have identical curvature and aspheric surface face type with the bigbore eyeglass of desiring to be spliced into, this has determined small-bore eyeglass to have different face types on different positions, therefore when these small-bore eyeglasses of processing, equally also can have some difficulties, and cost is very high.
Formed array telescope by many telescopes and formed the optical synthesis aperture optical system by a kind of abroad, it is structurally also very huge, and cost of manufacture also is high surprising.Therefore provide a kind of optical system of using of utilizing the synthetic aperture principle to make simple in structure, cheap, convenient to be necessary very much.
Summary of the invention
For solving the above-mentioned technical matters that exists in the background technology, the light-weighted field cut-off optical synthesis aperture imaging system that the invention provides a kind of high resolving power, be easy to accomplish scale production, cost of manufacture is cheap, optical system is tried one's best.
Technical solution of the present invention is: the invention provides a kind of field cut-off optical synthesis aperture imaging system, comprise primary mirror and be positioned at primary mirror and converge attached mirror on the light path, its special character is: the level crossing array that described primary mirror is made up of small-bore level crossing; Described attached mirror comprises imaging mirror, the collimation microlens array that is vertically installed in successively on the same optical axis and collects mirror; The focus place of described imaging mirror and the position parallel with described imaging mirror constitute image planes, and the focus place of described collection mirror and the position parallel with described collection mirror constitute the secondary image planes, and described image planes and secondary image planes all are positioned at outgoing one side of light path.
Above-mentioned imaging mirror and image planes also comprise field lens, and this field lens is used to change the incident angle of each visual field chief ray on image planes.
Above-mentioned imaging mirror is transmission-type imaging mirror, reflective imaging mirror or catadioptric formula imaging mirror.
Above-mentioned collection mirror is that transmission-type is collected mirror, reflective collection mirror or catadioptric formula collection mirror.
Above-mentioned collimation microlens array is to have the array that array that the various lenslets of imaging function form or small reflector are formed.
The small-bore level crossing of the level crossing array of above-mentioned composition comprises 2 at least.
Above-mentioned primary mirror and attached mirror are co-axial form or from the axle form.
Advantage of the present invention is: the present invention is made up of small-bore plane mirror primary mirror, in the field range of imaging mirror, can form the optical synthesis aperture array greater than the imaging aperture of mirror, and the size of this array and arrangement have determined the aperture of system.System's focal length is determined by the relation between imaging mirror, collimation microlens array, the collection mirror.Adopt the sub-mirror of plane mirror type, make sub-mirror be easy to accomplish scale production, reduce cost, and can make primary mirror realize lightweight.In addition, because primary mirror is made up of little level crossing, its radius-of-curvature need not design again.Theoretically, the aperture of system can infinitely be extended, and has broken through the primary mirror bore and has been subjected to the restriction that concerns between the primary and secondary mirror.
Description of drawings
Fig. 1 is the synoptic diagram of the method that present optical synthesis aperture adopted;
Fig. 2 is the preferable enforcement structural representation of the present invention;
Fig. 3 is the present invention's second preferable enforcement structural representation.
Embodiment
Referring to Fig. 2, the invention provides a kind of field cut-off optical synthesis aperture imaging system, comprise primary mirror 2 and be positioned at primary mirror 2 and converge attached mirror on the light path, the level crossing array that primary mirror 2 is made up of small-bore level crossing; Attached mirror comprises imaging mirror 4, the collimation microlens array 6 that is vertically installed in successively on the same optical axis 9 and collects mirror 7; The focus place of imaging mirror 4 and the position parallel with described imaging mirror 4 constitute image planes 5, collect the focus place of mirror 7 and the position parallel with described collection mirror 7 and constitute outgoing one side that 8, image planes 5 of secondary image planes and secondary image planes 8 all are positioned at light path.
Imaging mirror 4 and image planes 5 also comprise field lens, and this field lens is used to change the incident angle of each visual field chief ray on image planes 5.
Imaging mirror 4 is transmission-type imaging mirror 4, reflective imaging mirror 4 or catadioptric formula imaging mirror 4.Collecting mirror 7 is that transmission-type is collected mirror, reflective collection mirror or catadioptric formula collection mirror.Collimation microlens array 6 is to have the array that array that the various lenslets of imaging function form or small reflector are formed.The small-bore level crossing of the level crossing array of forming comprises 2 at least.Primary mirror 2 and attached mirror are co-axial form or from the axle form.
Referring to Fig. 3, another preferable specific embodiment structural representation provided by the invention, different with a last embodiment is that the reflection mirror array 2 formed primary mirrors of present embodiment are provided with from axle.
The present invention is in when work: light 1 incides from the infinite distance on the plane reflection lens array 2 that level crossing forms, and through reflection mirror array 2 the light reflection is entered imaging mirror 3, and imaging mirror 3 and field lens 4 are imaged onto light 1 on image planes 5 together.The light 1 of at this moment same incident visual field is imaged on the diverse location of image planes 5 respectively through the reflection of Different Plane catoptron, but the correspondence position of same incident visual field imaging point on the picture regional image planes separately of array is identical.Light 1 collimates to the imaging point on the regional image planes respectively through collimation microlens array 6 again, make the 1 one-tenth directional light of the light that imaging point sent corresponding to identical incident field angle, collecting mirror 7 will be through the image formation by rays of collimation microlens array 6 collimations on secondary image planes 8 (CCD is as the plane).
Claims (7)
1. field cut-off optical synthesis aperture imaging system comprises primary mirror and is positioned at primary mirror and converges attached mirror on the light path, it is characterized in that: the level crossing array that described primary mirror is made up of small-bore level crossing; Described attached mirror comprises imaging mirror, the collimation microlens array that is vertically installed in successively on the same optical axis and collects mirror; The focus place of described imaging mirror and the position parallel with described imaging mirror constitute image planes, and the focus place of described collection mirror and the position parallel with described collection mirror constitute the secondary image planes, and described image planes and secondary image planes all are positioned at outgoing one side of light path.
2. field cut-off optical synthesis aperture imaging system according to claim 1 is characterized in that: described imaging mirror and image planes also comprise field lens, and this field lens is used to change the incident angle of each visual field chief ray on image planes.
3. field cut-off optical synthesis aperture imaging system according to claim 1 and 2 is characterized in that: described imaging mirror is transmission-type imaging mirror, reflective imaging mirror or catadioptric formula imaging mirror.
4. field cut-off optical synthesis aperture imaging system according to claim 3 is characterized in that: described collection mirror is that transmission-type is collected mirror, reflective collection mirror or catadioptric formula collection mirror.
5. field cut-off optical synthesis aperture imaging system according to claim 4 is characterized in that: described collimation microlens array is to have the array that array that the various lenslets of imaging function form or small reflector are formed.
6. field cut-off optical synthesis aperture imaging system according to claim 5 is characterized in that: the small-bore level crossing of described composition level crossing array comprises 2 at least.
7. field cut-off optical synthesis aperture imaging system according to claim 6 is characterized in that: described primary mirror and attached mirror are co-axial form or from the axle form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101885577A CN101750754B (en) | 2008-12-17 | 2008-12-17 | Field cut-off optical synthesis aperture imaging system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101885577A CN101750754B (en) | 2008-12-17 | 2008-12-17 | Field cut-off optical synthesis aperture imaging system |
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| CN101750754A CN101750754A (en) | 2010-06-23 |
| CN101750754B true CN101750754B (en) | 2011-05-25 |
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| CN2008101885577A Expired - Fee Related CN101750754B (en) | 2008-12-17 | 2008-12-17 | Field cut-off optical synthesis aperture imaging system |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102073147B (en) * | 2010-12-23 | 2012-06-27 | 中国科学院西安光学精密机械研究所 | Multi-telescope optical synthetic aperture imaging system and design method thereof |
| CN107942480A (en) * | 2017-12-14 | 2018-04-20 | 中国科学院光电技术研究所 | A kind of catadioptric mixing infrared optical imaging system of new zoom ratio |
| CN110196232B (en) * | 2019-06-03 | 2021-11-26 | 中北大学 | Confocal imaging device and confocal imaging method |
| CN111338078B (en) * | 2020-04-16 | 2022-08-12 | 北京空间机电研究所 | Few-pixel optical imaging system |
| CN114322942A (en) * | 2021-12-07 | 2022-04-12 | 苏州大学 | Optical system and detection method based on spectral imaging and space optical remote sensing detection |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2296018Y (en) * | 1997-05-12 | 1998-10-28 | 中国科学院西安光学精密机械研究所 | Imaging structure of long focus optical system |
| CN1837763A (en) * | 2005-03-21 | 2006-09-27 | 北京理工大学 | Total reflection type Fourier transform imaging spectrometer employing Fresnel double-mirror |
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2008
- 2008-12-17 CN CN2008101885577A patent/CN101750754B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2296018Y (en) * | 1997-05-12 | 1998-10-28 | 中国科学院西安光学精密机械研究所 | Imaging structure of long focus optical system |
| CN1837763A (en) * | 2005-03-21 | 2006-09-27 | 北京理工大学 | Total reflection type Fourier transform imaging spectrometer employing Fresnel double-mirror |
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| CN101750754A (en) | 2010-06-23 |
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Effective date of registration: 20170915 Address after: 710100, Xi'an City, Shaanxi province national civil aviation industry base, Shenzhou four road, No. 239, C International Plaza, building seven, 708-20 Patentee after: Shaanxi strong civil and Military Integration Innovation Research Institute Co.,Ltd. Address before: 710119, 323 floor, 17 floor, information tower, new industrial park, hi tech Zone, Shaanxi, Xi'an, three Patentee before: XI'AN INSTITUTE OF OPTICS AND PRECISION MECHANICSOF CAS Effective date of registration: 20170915 Address after: 710119, 323 floor, 17 floor, information tower, new industrial park, hi tech Zone, Shaanxi, Xi'an, three Patentee after: XI'AN INSTITUTE OF OPTICS AND PRECISION MECHANICSOF CAS Address before: 710119 Xi'an province high tech Zone New Industrial Park Information Avenue, No. 17 Patentee before: XI'AN INSTITUTE OF OPTICS AND PRECISION MECHANICS, CHINESE ACADEMY OF SCIENCES |
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