CN201397420Y - Vision field division optical synthesis aperture imaging system - Google Patents
Vision field division optical synthesis aperture imaging system Download PDFInfo
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- CN201397420Y CN201397420Y CN2008202284633U CN200820228463U CN201397420Y CN 201397420 Y CN201397420 Y CN 201397420Y CN 2008202284633 U CN2008202284633 U CN 2008202284633U CN 200820228463 U CN200820228463 U CN 200820228463U CN 201397420 Y CN201397420 Y CN 201397420Y
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Abstract
The utility model relates to a vision field division optical synthesis aperture imaging system, which comprises a main mirror and an auxiliary mirror which is arranged on a syntaxis light path of themain mirror, wherein the main mirror is of a flat-mirror array consisting of small-aperture flat mirrors; the auxiliary mirror comprises an imaging mirror, a collimating lenticule array and a collecting mirror which are arranged on the same optical axis; a primary image surface is formed at the focus of the imaging mirror, which is paralleled to the imaging mirror, a secondary image surface is arranged at the focus of the collecting mirror, which is paralleled to the collecting mirror, and the primary and the secondary image surfaces are arranged at an emitting side of the light path. The imaging system solves the technical problems of the prior art that the large-aperture optical system has poor homogeneity of materials, inconvenient processing and assembling and the like, and has the advantages of simple structure, convenient application and the like.
Description
Technical field
The utility model relates 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
Be to solve the above-mentioned technical matters that exists in the background technology, the light-weighted field cut-off optical synthesis aperture imaging system that the utility model provides a kind of high resolving power, be easy to accomplish scale production, cost of manufacture is cheap, can make optical system try one's best.
Technical solution of the present utility model is: the utility model 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.
The utility model has the advantages that: the utility model 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,
Wherein,
(a) traditional single aperture structure;
(b) shared secondary mirror structure;
(c) many telescope configurations;
Fig. 2 is the preferable enforcement structural representation of the utility model;
Fig. 3 is the utility model second preferable enforcement structural representation.
Embodiment
Referring to Fig. 2, the utility model provides a kind of field cut-off optical synthesis aperture imaging system, comprises primary mirror 2 and be positioned at primary mirror 2 converging 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.
Referring to Fig. 3, another preferable specific embodiment structural representation that the utility model provides, different with a last embodiment is that the reflection mirror array 2 formed primary mirrors of present embodiment are provided with from axle.
The utility model 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, a kind of 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 the level crossing array of described composition 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 |
|---|---|---|---|
| CN2008202284633U CN201397420Y (en) | 2008-12-25 | 2008-12-25 | Vision field division optical synthesis aperture imaging system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008202284633U CN201397420Y (en) | 2008-12-25 | 2008-12-25 | Vision field division optical synthesis aperture imaging system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201397420Y true CN201397420Y (en) | 2010-02-03 |
Family
ID=41619940
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008202284633U Expired - Lifetime CN201397420Y (en) | 2008-12-25 | 2008-12-25 | Vision field division optical synthesis aperture imaging system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201397420Y (en) |
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2008
- 2008-12-25 CN CN2008202284633U patent/CN201397420Y/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20100203 Effective date of abandoning: 20081225 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20100203 Effective date of abandoning: 20081225 |