CN102707549B - Non-uniformity correction device for infrared camera - Google Patents
Non-uniformity correction device for infrared camera Download PDFInfo
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- CN102707549B CN102707549B CN201210194682.5A CN201210194682A CN102707549B CN 102707549 B CN102707549 B CN 102707549B CN 201210194682 A CN201210194682 A CN 201210194682A CN 102707549 B CN102707549 B CN 102707549B
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- type electromagnet
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Abstract
The invention provides a non-uniformity correction device for an infrared camera, relates to an automatic cut-in/cut-out device, and solves the technical problem in the prior art that use conditions are limited when the non-uniformity of the infrared camera is manually corrected. The correction device provided by the invention comprises a base (1), a round pipe type electromagnet (2), a crankshaft mechanism (3), a pin (4), a closed-state stop screw (5), a stop rod (6), a working-state stop screw (7) and a light shielding plate (8). According to the non-uniformity correction device, the round pipe type electromagnet is adopted to provide linear power for the whole mechanism, and a light path is shielded or open through using the light shielding plate formed by a crank, a crankshaft and a cam to indirectly drive the light shielding plate. The non-uniformity correction device has the advantages of simple structure, reliability, practicality and small space volume, and is more suitable for application places with seriously limited space.
Description
Technical field
The present invention relates to one and automatically cut/cut out device, especially for the electric operator of infrared camera Nonuniformity Correction.
Background technology
There is intrinsic heterogeneity noise in infrared camera, if this not carried out necessary correction processing, will cause the fixing irregular shading of appearance on image, and then the extraction of jamming target.Therefore,, in infrared camera start-up course, need to carry out Nonuniformity Correction processing to it.Classic method is: in the time that camera starts, manually block inhomogeneity reference blackbody as correction reference before camera lens, and then realize the Nonuniformity Correction of camera.The method is simple, convenient and practical, but usable range is very limited.As cannot arrive in people when camera state time, cannot adopt manual mode to realize the Nonuniformity Correction of camera.If in the situation that camera can arrive, complete in advance the processing of camera Nonuniformity Correction, camera has to continue charged work until arrive at target working position, the serviceable life that will reduce like this infrared camera.
Summary of the invention
Manually carry out the limited deficiency of Nonuniformity Correction service condition in order to overcome infrared camera, the invention provides a kind of electric operator, it is a kind of infrared camera Nonuniformity Correction device, in infrared camera start-up course, automatically from light path, cut/cut out with reference to black matrix, and then complete the Nonuniformity Correction processing of camera.The present invention adopts circular pipe type electromagnet for mechanism provides straight line power, indirectly drives shadow shield to realize blocking and opening of light path by crank mechanism.
The technical scheme that technical solution problem of the present invention adopts is as follows:
A kind of infrared camera Nonuniformity Correction device, comprises pedestal, circular pipe type electromagnet, crank mechanism, pin, closure state stop screw, gag lever post, duty stop screw and shadow shield; Described crank mechanism comprises crank, cam and bent axle, and bent axle hinge is associated on pedestal, can in pedestal, freely turn round; Crank and cam connect firmly on bent axle, and the axis of symmetry mm of crank and the axis of symmetry nn of cam become 60 ° of angles; Circular pipe type electromagnet is hinged by pin and crank, and cam is driven and carried out reciprocating rotating motion by crank and bent axle; Gag lever post connects firmly on pedestal, to limit the rotating range of cam; Shadow shield connects firmly on cam, can turn round with Cam reciprocating; Closure state stop screw connects firmly on cam by screw thread, and contacts with gag lever post during in closure state at shadow shield; Duty stop screw connects firmly on cam by screw thread, and contacts with gag lever post in the time that shadow shield is in running order.
The invention has the beneficial effects as follows: adopt circular pipe type electromagnet for device provides straight line power, indirectly drive shadow shield to realize blocking and opening light path by the crank mechanism being formed by crank, bent axle and cam; Simple in structure, reliable and practical, be: spatial volume is little to be more suitable for the serious limited use occasion in space compared with the outstanding advantages of circle type and orthoscopic switching device shifter.
Brief description of the drawings
Fig. 1 is the structural drawing of infrared camera Nonuniformity Correction device of the present invention.
Fig. 2 is the front view of infrared camera Nonuniformity Correction device of the present invention under closure state.
Fig. 3 is the front view that descends in working order infrared camera Nonuniformity Correction device of the present invention.
Fig. 4 is the structural drawing of the circular pipe type electromagnet in the present invention.
Fig. 5 is the structural drawing of the crank mechanism in the present invention.
In figure: 1-pedestal; 2-circular pipe type electromagnet, 21-circular pipe type electromagnet magnetic support, 22-Compress Spring, 23-spring base, 24-circular pipe type electromagnet core; 3-crank mechanism, 31-crank, 32-cam, 33-bent axle; 4-pin; 5-closure state stop screw; 6-gag lever post; 7-duty stop screw; 8-shadow shield; The axis of symmetry of mm-crank; The axis of symmetry of nn-cam.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is elaborated.
With reference to Fig. 1～5, infrared camera Nonuniformity Correction device of the present invention comprises: pedestal 1, circular pipe type electromagnet 2, crank mechanism 3, pin 4, gag lever post 6, closure state stop screw 5, duty stop screw 7 and shadow shield 8.Wherein, crank mechanism 3 is made up of crank 31, cam 32 and bent axle 33 3 parts; Circular pipe type electromagnet 2 is made up of magnetic support 21, Compress Spring 22, spring base 23 and iron core 24 4 parts.One end of iron core 24 is positioned at the circular cylindrical cavity of magnetic support 21, and spring base 23 connects firmly mutually by screw thread and iron core 24, and Compress Spring 22 is between spring base 23 and magnetic support 21.Can pass through the axial location of regulating spring seat 23 on iron core 24, adjust the pretightning force of Compress Spring 22.The in the situation that of circular pipe type electromagnet 2 switching electricity, iron core 24 can carry out straight reciprocating motion under the effect of magnetic support 21 magnetic field pulling force and Compress Spring 22 thrusts in magnetic support 21.Bent axle 33 hinges are associated on pedestal 1, can in pedestal 1, freely turn round.Crank 31 and cam 32 connect firmly on bent axle 33, and the axis of symmetry mm of crank 31 and the axis of symmetry nn of cam 32 become 60 ° of angles.The other end of the iron core 24 of circular pipe type electromagnet 2 is hinged by pin 4 and crank 31, in the time that iron core 24 carries out linear reciprocating motion in magnetic support 21, can be with moving cam 32 to carry out reciprocating rotating by crank 31 and bent axle 33.Gag lever post 6 connects firmly on pedestal 1, for limiting the rotating range of cam 32.Shadow shield 8 connects firmly on cam 32, can be with cam 32 reciprocating rotatings.Closure state stop screw 5 and duty stop screw 7 connect firmly on cam 32 by screw thread, and contact with gag lever post 6 respectively during in closure state or duty at shadow shield 8.By adjusting respectively closure state stop screw 5 and the elongation of duty stop screw 7 on cam 32, can the position of fine adjustment shadow shield 8 under corresponding state, to fully the blocking of light path, at closure state, light path is had no to block when guaranteeing that shadow shield 8 in working order.
When device is during in off-position, the iron core 24 of circular pipe type electromagnet 2 in stretching out state, and is placed in closure state by crank 31, bent axle 33 and cam 32 by shadow shield 8 under the thrust of Compress Spring 22.When device is during in "on" position, the iron core 24 of circular pipe type electromagnet 2 in contraction state, and is placed in duty by the crank 31 on bent axle 33 and cam 32 by shadow shield 8 under the pulling force effect of magnetic support 21 electromagnetic fields.
Shadow shield 8 in the present invention adopts the thick aluminium plate of 0.5mm to make, and surface uniform applies blackwash as with reference to black matrix.In the situation that ensureing sufficient intensity, quality is light as far as possible, so that shadow shield 8 cuts/cut out light path fast.
Claims (2)
1. an infrared camera Nonuniformity Correction device, comprise shadow shield (8), it is characterized in that, this device also comprises pedestal (1), circular pipe type electromagnet (2), crank mechanism (3), pin (4), closure state stop screw (5), gag lever post (6) and duty stop screw (7); Described crank mechanism (3) comprises crank (31), cam (32) and bent axle (33), and it is upper that bent axle (33) hinge is associated in pedestal (1), can in pedestal (1), freely turn round; Crank (31) and cam (32) connect firmly at bent axle (33) upper, and the axis of symmetry mm of crank (31) becomes 60 ° of angles with the axis of symmetry nn of cam (32); Circular pipe type electromagnet (2) is hinged by pin (4) and crank (31), and cam (32) is driven and carried out reciprocating rotating motion by crank (31) and bent axle (33); Gag lever post (6) connects firmly at pedestal (1) upper, to limit the rotating range of cam (32); Shadow shield (8) connects firmly at cam (32) upper, can be with cam (32) reciprocating rotating; Closure state stop screw (5) connects firmly at cam (32) upper by screw thread, and contacts with gag lever post (6) during in closure state at shadow shield (8); Duty stop screw (7) connects firmly at cam (32) upper by screw thread, and contacts with gag lever post (6) in the time that shadow shield (8) is in running order.
2. a kind of infrared camera Nonuniformity Correction device as claimed in claim 1, it is characterized in that, described circular pipe type electromagnet (2) comprises magnetic support (21), Compress Spring (22), spring base (23) and iron core (24), one end of iron core (24) is positioned at the circular cylindrical cavity of magnetic support (21), spring base (23) connects firmly mutually by screw thread and iron core (24), and Compress Spring (22) is positioned between spring base (23) and magnetic support (21); In the situation that circular pipe type electromagnet (2) is switched on, iron core (24) under the pulling force effect of the magnetic field of magnetic support (21) in contraction state; The in the situation that of circular pipe type electromagnet (2) power-off, iron core (24) under the thrust of Compress Spring (22) in stretching out state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210194682.5A CN102707549B (en) | 2012-06-13 | 2012-06-13 | Non-uniformity correction device for infrared camera |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210194682.5A CN102707549B (en) | 2012-06-13 | 2012-06-13 | Non-uniformity correction device for infrared camera |
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| Publication Number | Publication Date |
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| CN102707549A CN102707549A (en) | 2012-10-03 |
| CN102707549B true CN102707549B (en) | 2014-08-20 |
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| CN201210194682.5A Expired - Fee Related CN102707549B (en) | 2012-06-13 | 2012-06-13 | Non-uniformity correction device for infrared camera |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103412585B (en) * | 2013-07-15 | 2015-09-23 | 航天东方红卫星有限公司 | A kind of Satellite Camera thermal protection door system with active temperature control |
| CN104344897B (en) * | 2014-10-24 | 2018-06-15 | 中国航空工业集团公司洛阳电光设备研究所 | A kind of infrared optical system nonuniformity correction mechanism |
| CN104330168B (en) * | 2014-11-26 | 2018-04-27 | 中国航空工业集团公司洛阳电光设备研究所 | Visual field switches adsorbent equipment and thermal infrared imager in place |
| CN108120508A (en) * | 2016-11-30 | 2018-06-05 | 北京航天计量测试技术研究所 | A kind of incision suitable for the empty burnt correction of infrared imaging load cuts out device |
| CN109556734A (en) * | 2018-11-09 | 2019-04-02 | 中国航空工业集团公司洛阳电光设备研究所 | A kind of intermediate waves broadband thermal infrared imager |
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| US5811808A (en) * | 1996-09-12 | 1998-09-22 | Amber Engineering, Inc. | Infrared imaging system employing on-focal plane nonuniformity correction |
| CN101470026A (en) * | 2007-12-24 | 2009-07-01 | 南京理工大学 | Ununiformity emendation real-time calibration apparatus for staring type thermal imaging system |
| CN201368773Y (en) * | 2009-02-12 | 2009-12-23 | 武汉高德红外股份有限公司 | Novel thermal infrared imager |
| CN103048051A (en) * | 2012-12-17 | 2013-04-17 | 中国科学院西安光学精密机械研究所 | Infrared detector nonuniformity corrector |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011044813A (en) * | 2009-08-19 | 2011-03-03 | Sumitomo Electric Ind Ltd | Imaging apparatus, correction value calculation method, and imaging method |
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2012
- 2012-06-13 CN CN201210194682.5A patent/CN102707549B/en not_active Expired - Fee Related
Patent Citations (4)
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|---|---|---|---|---|
| US5811808A (en) * | 1996-09-12 | 1998-09-22 | Amber Engineering, Inc. | Infrared imaging system employing on-focal plane nonuniformity correction |
| CN101470026A (en) * | 2007-12-24 | 2009-07-01 | 南京理工大学 | Ununiformity emendation real-time calibration apparatus for staring type thermal imaging system |
| CN201368773Y (en) * | 2009-02-12 | 2009-12-23 | 武汉高德红外股份有限公司 | Novel thermal infrared imager |
| CN103048051A (en) * | 2012-12-17 | 2013-04-17 | 中国科学院西安光学精密机械研究所 | Infrared detector nonuniformity corrector |
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| 基于配准的红外焦平面阵列条纹非均匀性校正;任建乐 等;《红外与毫米波学报》;20111231;第30卷(第6期);第449-506页 * |
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| CN102707549A (en) | 2012-10-03 |
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Effective date of registration: 20170927 Address after: 130000 E2296 room, No. 1759, Mingxi Road, Gaoxin North District, Jilin, Changchun Patentee after: Changchun Optical Precision Instrument Group Co. Ltd. Address before: 130033 southeast Lake Road, Jilin, Changchun, No. 3888 Patentee before: Changchun Inst. of Optics and Fine Mechanics and Physics, Chinese Academy of Sci |
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Effective date of registration: 20171213 Address after: No. 18, Yingkou Road, Changchun, Jilin, Jilin Patentee after: Changchun long round Chen Microelectronic Technology Co Ltd Address before: 130000 E2296 room, No. 1759, Mingxi Road, Gaoxin North District, Jilin, Changchun Patentee before: Changchun Optical Precision Instrument Group Co. Ltd. |
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