CN203365814U - Focal plane joint device for spaceborn optical remote sensor - Google Patents
Focal plane joint device for spaceborn optical remote sensor Download PDFInfo
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- CN203365814U CN203365814U CN201320312856.3U CN201320312856U CN203365814U CN 203365814 U CN203365814 U CN 203365814U CN 201320312856 U CN201320312856 U CN 201320312856U CN 203365814 U CN203365814 U CN 203365814U
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- focal plane
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- docking facilities
- wheel disc
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Abstract
The utility model provides a focal plane joint device for a spaceborne optical remote sensor. The focal plane joint device comprises a two-dimensional adjusting bracket, a light source, a modulation wheel disk, a rectangular reticle and a collimator, wherein the modulation wheel disk is arranged between the light source and the collimator, the rectangular reticle is arranged on the modulation wheel disk, and the light source and the modulation wheel disk are arranged on the two-dimensional adjusting bracket. The focal plane joint device for the spaceborn optical remote sensor solves the problems of the prior art that during the assembly process of the existing optical system and the existing image sensor, the focal plane joint and assembly process is complicated, the image plane position of the spaceborn optical remote sensor is not accurately measured, and the high-precision, high efficiency focal plane joint is achieved.
Description
Technical field
The utility model relates to the optic test field, relates in particular to a kind of optical system for the star-loaded optical remote sensing device and imageing sensor and carries out the high precision that docking operation used, the device of Fast Calibration.
Background technology
The star-loaded optical remote sensing device mainly is comprised of optical system, imageing sensor and digital image processing system etc.The key of its task is to obtain and provide the image of complete display, and wants to obtain the image of high definition, and at optical sensor, during to target imaging, target must be imaged on the target surface of imageing sensor exactly.Some star-loaded optical remote sensing device self is with focus adjusting mechanism, and the focal plane assembling is relatively simple.But most of star-loaded optical remote sensing devices are considered reliability factor, avoid using motion in system as far as possible, when therefore the star-loaded optical remote sensing device dispatches from the factory, all to carry out testing calibration and make imageing sensor accurately be positioned at the best image planes position (be commonly referred to focal plane docking) of optical system, to reach best imaging effect.Because the accurate assembly of imageing sensor is the important step that ensures the optical sensor precision, assembly precision is had relatively high expectations, and difficulty is larger.If purely rely on the machining precision of mechanical parts to guarantee installation accuracy, can cause larger error; If rely on and repeatedly to grind focal plane and repair and cut pad and attempt, finally may find best installation site, but the mounting or dismounting of frequent operation image sensor module easily cause device failure, and the cycle are very long, expend a large amount of manpowers.
The utility model content
In order to solve existing technical matters in background technology, the utility model proposes a kind of device for the docking of star-loaded optical remote sensing device focal plane, it solves in existing optical system and imageing sensor assembling process, the process complexity is debug in the focal plane docking, and problem that can not Measurement accuracy star-loaded optical remote sensing device image planes position, can high precision, realize the focal plane docking expeditiously.
Technical solution of the present utility model is: a kind of docking facilities of the focal plane for the star-loaded optical remote sensing device, it is characterized in that: comprise two-dimentional adjusting pole, light source, modulation wheel disc, rectangle graticule, parallel light tube, described modulation wheel disc is arranged between light source and parallel light tube, described rectangle graticule is arranged on the modulation wheel disc, and described light source and modulation wheel disc are arranged on two-dimentional adjusting pole.
Above-mentioned focal plane docking facilities also comprises moving assembly, the described moving assembly opposite side that be arranged on parallel light tube corresponding to two-dimentional adjusting pole.
Above-mentioned focal plane docking facilities also comprises the control collecting computer of controlling two-dimentional adjusting pole, modulation wheel disc and moving assembly motion.
Above-mentioned focal plane docking facilities also comprises the special tooling that optical system is installed, and described special tooling and moving assembly are used in conjunction with.
Above-mentioned moving assembly is manual/electric precise mobile platform or manual/electric line slideway.
Above-mentioned modulation wheel disc is the wheel disc around the rotation of parallel light tube optical axis, and star tester or the resolution chart of rectangle graticule, different-diameter is housed on the modulation wheel disc.
Above-mentioned light source is Halogen lamp LED, integrating sphere.
Above-mentioned rectangle graticule is one group of black and white line that high-contrast is wide of delineation on a lighttight glass plate, and the black and white line width is determined according to systematic parameter parallel light tube focal length, tested optical system focal length and image sensor pixel size.
The utlity model has following advantage:
1) reach peaked criterion according to ssystem transfer function, the position of the actual needs just provided, the focusing precision is high;
2) for optical system to be assembled and imageing sensor itself without any damaging and harm (imageing sensor of star-loaded optical remote sensing device is worth high, the production cycle long);
3) adopt parallel light tube to coordinate dynamic goal simulator (two-dimentional adjusting pole, modulation wheel disc, rectangle graticule) can provide infinite distance and limited distance target simultaneously, can realize the focal plane docking apart from the star-loaded optical remote sensing device under condition to infinite distance or finite;
4) adopt this device, the work efficiency of star-loaded optical remote sensing device focal plane docking is increased substantially, be applicable to the mass check, provide cost savings and the time.
The accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the utility model rectangle graticule schematic diagram;
1-two dimension adjusting pole, the 2-light source, 3-modulates wheel disc, 4-rectangle graticule, the 5-parallel light tube, the 6-optical system, the 7-special tooling, the 8-imageing sensor, the 9-precise mobile platform, 10-controls collecting computer, 11-optical table;
Embodiment
Referring to Fig. 1, the utility model, for the focal plane docking facilities of star-loaded optical remote sensing device, mainly is comprised of two-dimentional adjusting pole 1, light source 2, modulation wheel disc 3, rectangle graticule 4, parallel light tube 5, special tooling 7, precise mobile platform 9, control collecting computer 10, optical table 11.
Modulation wheel disc 3 is arranged between light source 2 and parallel light tube 5, and rectangle graticule 4 is arranged on modulation wheel disc 3, and light source 2 and modulation wheel disc 3 are arranged on two-dimentional adjusting pole.Control collecting computer 10 and control two-dimentional adjusting pole, modulation wheel disc and moving assembly motion.The effect of precise mobile platform 9 is to drive imageing sensor 8 rectilinear motions, can be manual or automatically controlled, can be also the line slideway of other form, and the distance between imageing sensor and optical system can accurately be provided.Parallel light tube 5 can provide the target of infinite distance and limited distance, can be the parallel light tube of any version, any spectral range; The two dimension adjusting pole is to adjust modulation wheel disc 3 in order to support and facilitate, as long as can drive, modulates wheel disc 3 and is parallel or perpendicular to the parallel light tube optical axis and moves at the space two-dimensional direction; Modulation wheel disc 3 is disks that can rotate around the parallel light tube optical axis of controlling by controlling collecting computer 10, the rectangle graticule is housed on wheel disc, rectangle graticule 4 is in order to optical sensor to be assembled, to provide imageable target, can be also the graticule of other shape, such as star orifice plate, resolving power test target etc.; Light source 2 can be the luminous objects of all energy such as Halogen lamp LED, integrating sphere, can illuminate the rectangle graticule to get final product, just brightness and the spectral range difference of light source; Control collecting computer and comprise by process software, according to ssystem transfer function the most a kind of algorithm of high definite best image planes; The effect of optical table 11 is to place other equipment, is convenient to debug measurement, can be any platform, support, as long as other equipment of carrying that can be reliable and stable.
The concrete implementation of focal plane docking facilities for the star-loaded optical remote sensing device is:
1) put successively optical system to be assembled 6 and imageing sensor 8 on parallel light tube 5 right sides, optical system 6 is fixed on special tooling 7, adjusts optical system 6 coaxial with parallel light tube 5, and imageing sensor 8 is fixed on precise mobile platform 9;
2) regulate two-dimentional adjusting pole 1 and move along parallel light tube 5 optical axis directions, make parallel light tube simulate the needed object distance of tested optical system;
3) control precise mobile platform 9 and drive imageing sensor 8 motions, until the rectangle graticule energy blur-free imaging of parallel light tube 5 image planes positions; The rectangle graticule is one group of black and white line that high-contrast is wide of delineation on a lighttight glass plate, the black and white line width is definite according to systematic parameter (parallel light tube focal length, tested optical system focal length and image sensor pixel size), rectangle graticule schematic diagram is referring to Fig. 2
4) rotation modulation wheel disc 4 angles, make the rectangle graticule parallel with image detector linear array direction, regulates two-dimentional adjusting pole vertical parallel light pipe optical axis direction motion;
5) repeating step 3) and 4), and use process software real time computation system mtf value, until the mtf value maximum, now picture contrast is the highest,
MTF＝π(DN
max-DN
min)/4(DN
max+DN
min)
DN in above-mentioned formula
maxand DN
minrectangle graticule bright fringes and gray-scale value corresponding to dark fringe of exporting on image detector.
6) provide the distance L of imageing sensor 8 with respect to optical system 6 reference for installation by precise mobile platform 9;
7), according to the connection packing ring of 6 of the distance L manuscript image-position sensor 8 of measuring above and optical systems, can determine the best image planes position at imageing sensor 8 places.
Claims (8)
1. the docking facilities of the focal plane for the star-loaded optical remote sensing device, it is characterized in that: comprise two-dimentional adjusting pole, light source, modulation wheel disc, rectangle graticule, parallel light tube, described modulation wheel disc is arranged between light source and parallel light tube, described rectangle graticule is arranged on the modulation wheel disc, and described light source and modulation wheel disc are arranged on two-dimentional adjusting pole.
2. the docking facilities of the focal plane for the star-loaded optical remote sensing device according to claim 1, it is characterized in that: described focal plane docking facilities also comprises moving assembly, the described moving assembly opposite side that be arranged on parallel light tube corresponding to two-dimentional adjusting pole.
3. the docking facilities of the focal plane for the star-loaded optical remote sensing device according to claim 1 and 2 is characterized in that: described focal plane docking facilities also comprises the control collecting computer of controlling two-dimentional adjusting pole, modulation wheel disc and moving assembly motion.
4. the docking facilities of the focal plane for the star-loaded optical remote sensing device according to claim 3, it is characterized in that: described focal plane docking facilities also comprises the special tooling that optical system is installed, and described special tooling and moving assembly are used in conjunction with.
5. the docking facilities of the focal plane for the star-loaded optical remote sensing device according to claim 4, it is characterized in that: described moving assembly is manual/electric precise mobile platform or manual/electric line slideway.
6. the docking facilities of the focal plane for the star-loaded optical remote sensing device according to claim 5 is characterized in that: described modulation wheel disc is the wheel disc around the rotation of parallel light tube optical axis, and star tester or the resolution chart of rectangle graticule, different-diameter is housed on the modulation wheel disc.
7. the docking facilities of the focal plane for the star-loaded optical remote sensing device according to claim 6, it is characterized in that: described light source is Halogen lamp LED, integrating sphere.
8. the docking facilities of the focal plane for the star-loaded optical remote sensing device according to claim 3, it is characterized in that: described rectangle graticule is one group of black and white line that high-contrast is wide of delineation on a lighttight glass plate, and the black and white line width is determined according to systematic parameter parallel light tube focal length, tested optical system focal length and image sensor pixel size.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320312856.3U CN203365814U (en) | 2013-05-31 | 2013-05-31 | Focal plane joint device for spaceborn optical remote sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320312856.3U CN203365814U (en) | 2013-05-31 | 2013-05-31 | Focal plane joint device for spaceborn optical remote sensor |
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| Publication Number | Publication Date |
|---|---|
| CN203365814U true CN203365814U (en) | 2013-12-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320312856.3U Withdrawn - After Issue CN203365814U (en) | 2013-05-31 | 2013-05-31 | Focal plane joint device for spaceborn optical remote sensor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103278934A (en) * | 2013-05-31 | 2013-09-04 | 中国科学院西安光学精密机械研究所 | Focal plane butt-joint device and method for satellite-borne optical remote sensor |
| CN103744161A (en) * | 2014-01-07 | 2014-04-23 | 中国科学院西安光学精密机械研究所 | High-accuracy automatic image plane adjustment device and adjustment method thereof |
-
2013
- 2013-05-31 CN CN201320312856.3U patent/CN203365814U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103278934A (en) * | 2013-05-31 | 2013-09-04 | 中国科学院西安光学精密机械研究所 | Focal plane butt-joint device and method for satellite-borne optical remote sensor |
| CN103278934B (en) * | 2013-05-31 | 2017-03-29 | 中国科学院西安光学精密机械研究所 | A kind of focal plane docking facilities and method for star-loaded optical remote sensing device |
| CN103744161A (en) * | 2014-01-07 | 2014-04-23 | 中国科学院西安光学精密机械研究所 | High-accuracy automatic image plane adjustment device and adjustment method thereof |
| CN103744161B (en) * | 2014-01-07 | 2016-08-24 | 中国科学院西安光学精密机械研究所 | A kind of High Precision Automatic adjustment image planes device and method of adjustment thereof |
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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: 20131225 Effective date of abandoning: 20170329 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20131225 Effective date of abandoning: 20170329 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |