CN102175605B - Filter type two-waveband small ultraviolet omnidirectional imager system - Google Patents
Filter type two-waveband small ultraviolet omnidirectional imager system Download PDFInfo
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- CN102175605B CN102175605B CN201010615553A CN201010615553A CN102175605B CN 102175605 B CN102175605 B CN 102175605B CN 201010615553 A CN201010615553 A CN 201010615553A CN 201010615553 A CN201010615553 A CN 201010615553A CN 102175605 B CN102175605 B CN 102175605B
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Abstract
The invention provides a filter type two-waveband small ultraviolet omnidirectional imager system, relating to the field of an optical machine. The system comprises two ultraviolet wide waveband imagers, a narrow band filter, a filter wheel and a stepping machine, wherein each ultraviolet wide waveband imager comprises an N pyramid reflector, a wide waveband ultraviolet lens group, a CCD (charge coupled device) detector and an electronics system, wherein the wide waveband ultraviolet lens group, the CCD detector and the electronics system are arranged in front of the N pyramid reflector in sequence; the CCD detector is connected with the electronics system; a narrow band filter is arranged between the wide waveband ultraviolet lens group and the N pyramid reflector; the stepping motor is arranged between the two ultraviolet wide waveband imagers; the filter wheel is arranged on the stepping motor; and the narrow band filter is arranged on the filter wheel. The system uses the high-performance narrow band filter and the ultraviolet wide waveband imagers to perform large-range high-resolution detection on the atmosphere in the ultraviolet band under the star and in limb direction. The system is suitable for detecting the high space-time coverage of the middle atmosphere and near space.
Description
Technical field
The present invention relates to the optical-mechanical field, imager system of the small-sized ultraviolet of particularly a kind of optical filtering chip two waveband omnidirectional.
Background technology
Facing the limit observation technology is to utilize a kind of mode that external space optical instrument is measured the atmosphere minimum gas that is operated in; It integrates the high spatial coverage rate of traditional nadir observation and high vertical resolution, the high accuracy of observation of occultation observation, is the state-of-the-art technology that is used for atmospheric exploration at present.The ultraviolet band atmosphere of external design faces the limit observation instrument and is mostly spectrometer or imaging spectrometer structure.Spectrometer or imaging spectrometer are observed the specific edge direction that faces of atmosphere; Can provide this area of observation coverage abundant spectral information; But the area of observation coverage is limited by optical texture; The zone is limited, can't be simultaneously to atmospheric envelope carry out on a large scale, broadband, high-resolution comprehensive survey, and then can't provide that accurate atmosphere is comprehensive, multi-space information.Simultaneously; Spectrometer or imaging spectrometer volume are bigger, and such as the The Global Ozone Monitoring EXperiment (GOME) of European Space Agency's nineteen ninety-five emission, weight is 55kg; The Ozone Monitoring Instrument (OMI) of U.S.'s emission in 2003, weight is 65kg.Therefore, developing a kind of novel ultraviolet band atmosphere, to face the limit observation instrument imperative.
Summary of the invention
To above-mentioned situation, in order to address the deficiencies of the prior art, the object of the invention just is to provide imager system of the small-sized ultraviolet of a kind of optical filtering chip two waveband omnidirectional, can effectively solve the problem that volume is big, weight is big, structure is too fat to move.
The technical scheme that technical solution problem of the present invention adopts is; Imager system of the small-sized ultraviolet of a kind of optical filtering chip two waveband omnidirectional; Comprise narrow band pass filter, optical filter wheel, stepper motor and two ultraviolet broadband imagers; Said ultraviolet broadband imager comprises N pyramid catoptron, broadband ultraviolet lens combination, ccd detector and electronic system; N pyramid catoptron front is placed broadband ultraviolet lens combination, ccd detector and electronic system successively; Narrow band pass filter is placed between broadband ultraviolet lens combination and the N pyramid catoptron, and stepper motor is placed between two ultraviolet broadband imagers, and stepper motor links to each other with narrow band pass filter through optical filter wheel.
The present invention is through using high-performance narrow band pass filter and ultraviolet broadband imager; Can realize under the star and face the limit surveying simultaneously; Be implemented in ultraviolet band to atmosphere carry out on a large scale, high resolving power surveys, the high space-time that is applicable to middle atmosphere/near space covers surveys needs.
Description of drawings
Fig. 1 is the structural representation of a kind of imager system of the small-sized ultraviolet of chip two waveband omnidirectional that filters of the present invention.
Among the figure, 1, N pyramid catoptron, 2, narrow band filter slice, 3, broadband ultraviolet lens combination, 4, ccd detector, 5, stepper motor, 6, electronic system, 7, optical filter wheel.
Embodiment
Elaborate below in conjunction with the accompanying drawing specific embodiments of the invention.
By shown in Figure 1; Imager system of the small-sized ultraviolet of a kind of optical filtering chip two waveband omnidirectional; It is characterized in that comprise narrow band pass filter 2, optical filter wheel 7, stepper motor 5 and two ultraviolet broadband imagers, said ultraviolet broadband imager comprises N pyramid catoptron 1, broadband ultraviolet lens combination 3, ccd detector 4 and electronic system 6; N pyramid catoptron 1 front is placed broadband ultraviolet lens combination 3, ccd detector 4 and electronic system 6 successively; Ccd detector 4 links to each other with electronic system 6, and narrow band pass filter 2 is placed between broadband ultraviolet lens combination 3 and the N pyramid catoptron 1, and stepper motor 5 is placed between two ultraviolet broadband imagers; Optical filter wheel 7 is contained on the stepper motor 5, and narrow band pass filter 2 is contained on the optical filter wheel 7.
The acute angle base angle scope of said N pyramid catoptron 1 is 50 °≤α≤83.5 °, and base angle, obtuse angle β scope is 96.5 °≤β≤130 °, the corresponding narrow band pass filter 2 in the bottom surface, obtuse angle of N pyramid catoptron 1.
Said narrow band pass filter 2 is 3 pairs.
Said narrow band pass filter 2 is that axis of symmetry is symmetrically distributed with the central shaft of optical filter wheel 7.
The central shaft of said ccd detector 4, broadband ultraviolet lens combination 3, narrow band pass filter 2 and N pyramid catoptron 1 is on same straight line.
Distance B scope between said narrow band pass filter 2 and the broadband ultraviolet lens combination 3 is 7mm≤D≤13mm.
The scope apart from d between said narrow band pass filter 2 and the N pyramid catoptron 1 is 40mm≤d≤46mm.
Realizing surveying wavelength signals through high performance narrow band pass filter 2 measures.The atmosphere inversion technique is surveyed wavelength signals several usually simultaneously, utilizes the distribution of measuring-signal inverting Atmospheric components, is a pair of such as the wavelength 265nm and the 295nm of narrow band pass filter 2, and 340nm and 360nm are a pair of.
In order to make the object of the invention, technical scheme and advantage more clear, below in conjunction with embodiment, the present invention is further specified, should be appreciated that specific embodiment described herein only is used to explain the present invention, and be not used in qualification the present invention.
138 °～150 ° atmosphere radiations are got into broadband ultraviolet lens combination 3 and are imaged on the ccd detector 4 by 1 reflection of N pyramid-shaped mirror after narrow band pass filter 2 filters the spectrum outside the working range; The substar atmosphere radiation gets into broadband ultraviolet lens combination 3 through N pyramid catoptron 1 center drilling and is imaged on the ccd detector 4.
Imager system of the small-sized ultraviolet of optical filtering chip two waveband omnidirectional provides under 360 ° of visual fields, faces the earth ultraviolet of 138 ° of edge direction field angle～150 ° of scopes and faces limit picture, spatial resolution 3km, spectral resolution 20nm.In the image planes of omnidirectional's imager, be on ccd detector 4 windows, 138 °～150 ° earth face the limit picture and 10 ° of substar atmosphere circularize and center circle spot picture.Annulus has reflected that as the radial strength variation earth faces the limit radiance with height change, and the center speck has reflected atmosphere radiation Luminance Distribution in 10 ° of visual angles of substar.
Face the limit picture in order to obtain in 10 ° of visual angles of substar the earth ultraviolet of atmosphere radiation and 138 °～150 ° of scopes simultaneously; Adopt general optical system to be difficult to reach; Therefore utilize a N pyramid catoptron 1 and broadband ultraviolet imagery appearance to form a catadioptric wide-angle object lens optical imagery unit, 1 number of N pyramid catoptron selects 6.Hexagonal pyramid catoptron cone angle is 47.2 °.
Before broadband ultraviolet lens combination 3, add the wave band that narrow band pass filter guarantees system works.Narrow band pass filter 2 be 10mm with broadband ultraviolet lens combination 3 distances, with N pyramid catoptron 1 distance be 43mm, narrow band pass filter 2 grades are imaging-type, the veiling glare inhibition is 0.1%.
The small-sized ultraviolet of optical filtering chip two waveband omnidirectional imager system architecture is compact, uses a step motor drive, uses a plurality of wavelength to measuring, and volume is 350mm (length) * 200mm (wide) * 200mm (height).General assembly (TW) is lower than 8kg.
Described optical filter wheel 7 is symmetrically distributed M to optical filter, driven by stepper motor 5.During measurement, before every pair of narrow band pass filter 2 is positioned at ultraviolet broadband imager, realize that two groups of wavelength survey simultaneously.Change the position of optical filter wheel 7, realize that a pair of wavelength is surveyed simultaneously down.
The present invention is through using high-performance narrow band pass filter and ultraviolet broadband imager; Can realize under the star and face the limit surveying simultaneously; Be implemented in ultraviolet band to atmosphere carry out on a large scale, high resolving power surveys, the high space-time that is applicable to middle atmosphere/near space covers surveys needs.
Claims (7)
1. imager system of the small-sized ultraviolet of optical filtering chip two waveband omnidirectional; It is characterized in that; Comprise narrow band pass filter (2), optical filter wheel (7), stepper motor (5) and two ultraviolet broadband imagers; Said ultraviolet broadband imager comprises N pyramid catoptron (1), broadband ultraviolet lens combination (3), ccd detector (4) and electronic system (6), and N pyramid catoptron (1) front is placed broadband ultraviolet lens combination (3), ccd detector (4) and electronic system (6) successively, and ccd detector (4) links to each other with electronic system (6); Narrow band pass filter (2) is placed between broadband ultraviolet lens combination (3) and the N pyramid catoptron (1); Stepper motor (5) is placed between two ultraviolet broadband imagers, and optical filter wheel (7) is contained on the stepper motor (5), and narrow band pass filter (2) is contained on the optical filter wheel (7).
2. imager system of the small-sized ultraviolet of a kind of optical filtering chip two waveband according to claim 1 omnidirectional; It is characterized in that; The acute angle base angle scope of said N pyramid catoptron (1) is 50 °≤α≤83.5 °; Base angle, obtuse angle β scope is 96.5 °≤β≤130 °, the corresponding narrow band pass filter (2) in the bottom surface, obtuse angle of N pyramid catoptron (1).
3. imager system of the small-sized ultraviolet of a kind of optical filtering chip two waveband according to claim 1 omnidirectional is characterized in that said narrow band pass filter (2) is 3 pairs.
4. imager system of the small-sized ultraviolet of a kind of optical filtering chip two waveband according to claim 1 omnidirectional is characterized in that, said narrow band pass filter (2) is that axis of symmetry is symmetrically distributed with the central shaft of optical filter wheel (7).
5. imager system of the small-sized ultraviolet of a kind of optical filtering chip two waveband according to claim 1 omnidirectional; It is characterized in that the central shaft of said ccd detector (4), broadband ultraviolet lens combination (3), narrow band pass filter (2) and N pyramid catoptron (1) is on same straight line.
6. imager system of the small-sized ultraviolet of a kind of optical filtering chip two waveband according to claim 1 omnidirectional is characterized in that the distance B scope between said narrow band pass filter (2) and the broadband ultraviolet lens combination (3) is 7mm≤D≤13mm.
7. imager system of the small-sized ultraviolet of a kind of optical filtering chip two waveband according to claim 1 omnidirectional is characterized in that the scope apart from d between said narrow band pass filter (2) and the N pyramid catoptron (1) is 40mm≤d≤46mm.
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| CN201010615553A CN102175605B (en) | 2010-12-30 | 2010-12-30 | Filter type two-waveband small ultraviolet omnidirectional imager system |
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| CN201010615553A CN102175605B (en) | 2010-12-30 | 2010-12-30 | Filter type two-waveband small ultraviolet omnidirectional imager system |
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| CN102175605B true CN102175605B (en) | 2012-09-19 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102967560B (en) * | 2012-11-26 | 2015-09-09 | 中国科学院长春光学精密机械与物理研究所 | Double grating altogether light path broadband faces limit imaging spectral instrument system |
| CN103196829A (en) * | 2013-03-04 | 2013-07-10 | 中国科学院长春光学精密机械与物理研究所 | Tri-band miniature ultraviolet panoramic limb imager system |
| CN103278156B (en) * | 2013-04-18 | 2016-01-20 | 中国科学院长春光学精密机械与物理研究所 | A kind of ultraviolet star sensor |
| CN103344580A (en) * | 2013-06-24 | 2013-10-09 | 中国科学院长春光学精密机械与物理研究所 | Imaging method for three-waveband multi-azimuth simultaneous limb nadir atmospheric remote sensing |
| CN103308166A (en) * | 2013-06-24 | 2013-09-18 | 中国科学院长春光学精密机械与物理研究所 | Multi-direction multi-band atmospheric remote sensing ultraviolet imager |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5539483A (en) * | 1995-06-30 | 1996-07-23 | At&T Corp. | Panoramic projection apparatus |
| CN101236296A (en) * | 2008-01-31 | 2008-08-06 | 北京控制工程研究所 | Ultraviolet navigation sensor optical system |
| CN201173822Y (en) * | 2008-04-10 | 2008-12-31 | 中国科学院长春光学精密机械与物理研究所 | Ultraviolet-vacuum ultraviolet spectroscopy radiation transfer characteristic test device |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5539483A (en) * | 1995-06-30 | 1996-07-23 | At&T Corp. | Panoramic projection apparatus |
| CN101236296A (en) * | 2008-01-31 | 2008-08-06 | 北京控制工程研究所 | Ultraviolet navigation sensor optical system |
| CN201173822Y (en) * | 2008-04-10 | 2008-12-31 | 中国科学院长春光学精密机械与物理研究所 | Ultraviolet-vacuum ultraviolet spectroscopy radiation transfer characteristic test device |
Non-Patent Citations (1)
| Title |
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| 薛庆生等.用于大气遥感探测的临边成像光谱仪.《用于大气遥感探测的临边成像光谱仪》.2010,第18卷(第4期),823-830. * |
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