CN101706588B - All-sky atmospheric gravity wave imaging instrument adopting fish eye lens and telecentric beam path - Google Patents
All-sky atmospheric gravity wave imaging instrument adopting fish eye lens and telecentric beam path Download PDFInfo
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- CN101706588B CN101706588B CN 200910237353 CN200910237353A CN101706588B CN 101706588 B CN101706588 B CN 101706588B CN 200910237353 CN200910237353 CN 200910237353 CN 200910237353 A CN200910237353 A CN 200910237353A CN 101706588 B CN101706588 B CN 101706588B
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Abstract
The invention provides an all-sky atmospheric gravity wave imaging instrument adopting a fish eye lens and a telecentric beam path, which comprises the No. F2.8 fish eye lens with the focus of 10.5mm, a telecentric lens, a circular light filter with the diameter of 3 inches, a focus reducing lens group, an imaging lens and a scientific grade CCD camera, and OH, O2, OI, Na and other airglows are radiated as tracers, thereby realizing the all-sky atmospheric gravity wave imaging. The telecentric lens is placed in the rear position of a focal plane of the fish eye lens, thereby leading emergent light to meet the requirements on the angle of incident light of the light filter; and then the light sequentially passes through the circular light filter, the focus reducing lens group for focusing and adjusting aberration, the imaging lens and the connected scientific grade CCD camera, thereby realizing the all-sky 180-degree atmospheric gravity wave imaging. The all-sky atmospheric gravity wave imaging instrument utilizes the No. F2.8 fish eye lens with the focus of 10.5mm which is commercially universal at present and is matched with the multi-channel light filter with 3 inches, thereby being more economic and convenient to realize the multi-channel all-sky gravity wave imaging on the basis of ensuring the high light throughput of the whole system.
Description
Technical field
The present invention relates to a kind of optical imagery design of all-sky atmosphere gravitational wave, particularly a kind of all-sky atmosphere gravitational wave imager that adopts fish eye lens and telecentric beam path.
Background technology
Atmospheric gravity waves can produce disturbance to the airglow radiating layer in upload procedure, take the radiation of atmosphere airglow as tracer, can realize the observation to the atmospheric gravity waves activity.In atmosphere on the middle and senior level, be positioned at visible light have to the airglow radiation of near-infrared band multiple, the O2 of the OH in broadband and arrowband for example, OI, the multiple airglow radiating layer such as Na, these airglow radiation all can be used for the Gravity wave activities imaging observation.
Adopt at present the all-sky gravity wave imager of telecentric beam path to comprise: fish eye lens, telecentric mirror, optical filter, reimaging camera lens and scientific grade CCD camera.For the faint airglow radiation of surveying tracer as atmospheric gravity waves, the whole light path of General Requirements has larger clear aperature, and buys and processing for convenient, must limit the optical filter size.But a problem that adopts telecentric beam path to face is: if it is less to limit the optical filter size, then fish-eye clear aperature also should be little, is unfavorable for satisfying the requirement that the atmospheric gravity waves take faint airglow radiating layer as tracer is surveyed; And if increase fish-eye clear aperature, then require the size of optical filter very large.
Summary of the invention
Therefore, in order to solve present atmospheric gravity waves imager clear aperature and the conflicting problem of optical filter size, the object of the present invention is to provide a kind of multichannel all-sky gravity wave imager design of adopting fish eye lens and telecentric beam path.Utilize focal distance f 10.5mm more common in the existing market, the fish eye lens of #F2.8 cooperates 3 inches multi-channel filters, is guaranteeing can also to realize easily the imaging of hyperchannel all-sky gravity wave by less expensive on the basis of whole system than the high pass light quantity.
In order to realize the foregoing invention purpose, the all-sky atmosphere gravitational wave imager of employing fish eye lens of the present invention and telecentric beam path, comprise: circular filter, contracting focus lens group, imaging lens and scientific grade CCD camera that the fish eye lens of focal length 10.5mm#F2.8, telecentric mirror sheet, diameter are 3 inches, with OH and O2, OI, the airglow radiation such as Na are tracer, realize the all-sky atmosphere gravitational wave imaging.Wherein, described telecentric mirror sheet is placed on rear position, described fish-eye focal plane, make the light of outgoing satisfy the requirement of described optical filter angle of incident light, make again light pass through circular described optical filter, then be used for the burnt described contracting focus lens group with adjusting aberration of contracting through one, by described imaging lens, connect scientific grade CCD camera again, thereby realize 180 ° of atmospheric gravity waves imagings of all-sky.
In addition, described contracting focus lens group is made of four lens of placing continuously, wherein, first is negative lens, and second is positive lens, and the 3rd is positive lens, the 4th is the negative lens composition, thus, combined by above-mentioned four lens, and contracting Jiao and can adjust aberration with the combination of described telecentric mirror sheet.
Described imaging lens and scientific grade CCD camera adopt general commercial imaging lens and scientific grade CCD.
In addition, as further improved version, the present invention also provides a kind of multichannel all-sky atmosphere gravitational wave imager that adopts fish eye lens and telecentric beam path, it is characterized in that, comprise: the circular filter that the diameter of the fish eye lens of focal length 10.5mm#F2.8, telecentric mirror sheet, multi-disc different-waveband is 3 inches, filter wheel, contracting focus lens group, imaging lens and scientific grade CCD camera, with OH and O2, OI, the airglow radiation such as Na are tracer, realize the all-sky atmosphere gravitational wave imaging.
Wherein, described telecentric mirror sheet is placed on rear, described fish-eye focal plane, make the light of outgoing satisfy the requirement of described optical filter angle of incident light, and make the described filter wheel of the optical filter of light by described multi-disc different-waveband is housed, then be used for the burnt described contracting focus lens group with adjusting aberration of contracting through one, again by described imaging lens, connect scientific grade CCD camera, observed in turn by computer control realization hyperchannel, thereby realize 180 ° of atmospheric gravity waves imagings of all-sky.
The beneficial effect of the all-sky gravity wave imager of employing fish eye lens of the present invention and telecentric beam path is: the fish eye lens that utilizes the focal length 10.5mm#F2.8 that commerce is general at present, cooperate 3 inches multi-channel filters, guaranteeing to realize easily the imaging of hyperchannel all-sky gravity wave by less expensive on the basis of whole system than the high pass light quantity.
Description of drawings
Fig. 1 is structure and the light path schematic diagram of the all-sky gravity wave imager of employing fish eye lens of the present invention and telecentric beam path.
Embodiment
Be described in detail below in conjunction with the all-sky gravity wave imager of the drawings and specific embodiments to employing fish eye lens of the present invention and telecentric beam path.
Fig. 1 is structure and the light path schematic diagram of the all-sky gravity wave imager of employing fish eye lens of the present invention and telecentric beam path.As shown in Figure 1, the all-sky atmosphere gravitational wave imager of employing fish eye lens of the present invention and telecentric beam path, comprise: the fish eye lens 1 of focal length 10.5mm#F2.8, telecentric mirror sheet 2, optical filter 3, contracting focus lens group 4, imaging lens 5 and scientific grade CCD camera 6 are with OH and O2, OI, the airglow radiation such as Na are tracer, realize the all-sky atmosphere gravitational wave imaging.
In addition, as shown in Figure 1, in the imager of the present invention, light runs through whole light path from left to right, high order end light is the light from fish eye lens 1 outgoing, after arriving the focal plane of fish eye lens 1, after passing telecentric mirror sheet 2, the light angle of outgoing reaches the bandwidth requirement of optical filter 3, make again light pass through the circular filter 3 of 3 inches of diameters, then be used for the burnt lens set 4 with adjusting aberration of contracting through one, again by imaging lens 5 (representing with desirable camera lens arrow), arrive the plane of scientific grade CCD camera 6.What solid line and dotted line represented respectively is the light of 0 ° and 90 ° incident, can realize the all-sky atmosphere gravitational wave two-dimensional imaging thus.
Following table one is detailed model and the lens parameters of each optical device of adopting of one embodiment of the present of invention.Wherein, fish eye lens is selected the focal length 10.5mm of general commercial, the fish eye lens of #F2.8.
Table one eyeglass detail parameters example
| Curved surface | Subsequent corrosion (mm) | Thickness (mm) | Glass material | Radius (mm) |
| The fish eye lens focal plane | -- | 25.8 | -- | -- |
| The telecentric mirror sheet, |
Inf | 8.57 | K9 | 25 |
| The telecentric mirror sheet, face 2 | -50.0260 | 87 | -- | 25 |
| Contracting focus lens one, face 1 | -61.3966 | 3.5 | ZF14 | 35 |
| Contracting focus lens one, face 2 | -82.2004 | 0 | -- | 35 |
| Contracting focus lens two, face 1 | -155.2137 | 9.3 | ZF14 | 35 |
| Contracting focus lens two, face 2 | -61.8825 | 0 | -- | 35 |
| Contracting focus lens three, |
207.0243 | 11.5 | K9 | 35 |
| Contracting focus lens three, face 2 | -105.3541 | 6.6 | -- | 35 |
| Contracting focus lens four, face 1 | -80.0986 | 3.5 | ZF14 | 35 |
| Contracting focus lens four, face 2 | -126.5767 | -- | -- | 35 |
In addition, version as a further improvement on the present invention can also can be positioned over the optical filter 3 of multi-disc different-waveband in the filter wheel, replaces single optical filter 3.Light from fish eye lens 1 outgoing of focal length 10.5mm#F2.8, after arriving the focal plane of fish eye lens 1, the light angle of passing the 2 rear outgoing of telecentric mirror sheet reaches the bandwidth requirement of optical filter 3, make again the filter wheel (not shown) of the optical filter 3 of light by the multi-disc different-waveband is housed, then be used for the burnt lens set 4 with adjusting aberration of contracting through one, again by imaging lens 5 (representing with desirable camera lens arrow), arrive the plane of scientific grade CCD camera 6, with the CCD camera, by computer control, finally realize take the radiation of atmosphere airglow as tracer, to the hyperchannel one after the other imaging observation of atmospheric gravity waves.
It should be noted last that, above embodiment is only unrestricted in order to technical scheme of the present invention to be described.Although with reference to embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that, technical scheme of the present invention is made amendment or is equal to replacement, do not break away from the spirit and scope of technical solution of the present invention, it all should be encompassed in the middle of the claim scope of the present invention.
Claims (6)
1. multichannel all-sky atmosphere gravitational wave imager that adopts fish eye lens and telecentric beam path, it is characterized in that, comprise: circular filter, contracting focus lens group, imaging lens and scientific grade CCD camera that the fish eye lens of focal length 10.5mm#F2.8, telecentric mirror sheet, diameter are 3 inches, to comprise OH and O2, OI, the airglow radiation of Na is tracer, realizes the all-sky atmosphere gravitational wave imaging
Wherein, described telecentric mirror sheet is placed on rear, described fish-eye focal plane, make the light of outgoing satisfy the requirement of described optical filter angle of incident light, make again light pass through circular described optical filter, then be used for the burnt described contracting focus lens group with adjusting aberration of contracting through one, by described imaging lens, connect scientific grade CCD camera again, thereby realize 180 ° of atmospheric gravity waves imagings of all-sky.
2. the multichannel all-sky atmosphere gravitational wave imager of employing fish eye lens as claimed in claim 1 and telecentric beam path, it is characterized in that, described contracting focus lens group is made of four lens of placing continuously, and wherein, the first lens are negative lens, second lens is positive lens, the 3rd lens are positive lens, and the 4th lens are negative lens, thus, combined by above-mentioned four lens, and contracting Jiao and adjust aberration with the combination of described telecentric mirror sheet.
3. the multichannel all-sky atmosphere gravitational wave imager of employing fish eye lens as claimed in claim 1 and telecentric beam path is characterized in that, described imaging lens and scientific grade CCD camera adopt general commercial imaging lens and scientific grade CCD camera.
4. multichannel all-sky atmosphere gravitational wave imager that adopts fish eye lens and telecentric beam path, it is characterized in that, comprise: the circular filter that the diameter of the fish eye lens of focal length 10.5mm#F2.8, telecentric mirror sheet, multi-disc different-waveband is 3 inches, filter wheel, contracting focus lens group, imaging lens and scientific grade CCD camera, to comprise OH and O2, OI, the airglow radiation of Na is tracer, realizes the all-sky atmosphere gravitational wave imaging
Wherein, described telecentric mirror sheet is placed on rear, described fish-eye focal plane, make the light of outgoing satisfy the requirement of described optical filter angle of incident light, make again the described filter wheel of the optical filter of light by described multi-disc different-waveband is housed, then be used for the burnt described contracting focus lens group with adjusting aberration of contracting through one, again by described imaging lens, connect scientific grade CCD camera, observed in turn by computer control realization hyperchannel, thereby realize 180 ° of atmospheric gravity waves imagings of all-sky.
5. the multichannel all-sky atmosphere gravitational wave imager of employing fish eye lens as claimed in claim 4 and telecentric beam path, it is characterized in that, described contracting focus lens group is made of four lens of placing continuously, and wherein, the first lens are negative lens, second lens is positive lens, the 3rd lens are positive lens, and the 4th lens are negative lens, thus, combined by above-mentioned four lens, and contracting Jiao and adjust aberration with the combination of described telecentric mirror sheet.
6. the multichannel all-sky atmosphere gravitational wave imager of employing fish eye lens as claimed in claim 4 and telecentric beam path is characterized in that, described imaging lens and scientific grade CCD camera adopt general commercial imaging lens and scientific grade CCD camera.
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| CN101706588B true CN101706588B (en) | 2013-04-24 |
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| CN105326572B (en) * | 2015-11-04 | 2017-08-29 | 庄源东 | A kind of surgical laser alignment system guide device |
| CN105588641B (en) * | 2016-02-01 | 2018-05-22 | 青岛市光电工程技术研究院 | A kind of ground airglow imager for earthquake forecast |
| CN109656006B (en) * | 2019-01-04 | 2024-04-09 | 中国科学院西安光学精密机械研究所 | Wide-spectrum non-focusing all-day air bright imager |
| CN111238577B (en) * | 2020-03-31 | 2022-02-18 | 南京信息工程大学 | Airglow gravitational wave multi-parameter detector |
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| CN1290355A (en) * | 1997-12-05 | 2001-04-04 | 纽约市哥伦比亚大学托管会 | Omnidirectional imaging apparatus |
| CN1685272A (en) * | 2002-09-24 | 2005-10-19 | 西健尔 | Image display unit and projection optical system |
| CN101218546A (en) * | 2005-07-07 | 2008-07-09 | 富士胶片株式会社 | Pattern forming method |
| CN101276039A (en) * | 2007-03-27 | 2008-10-01 | 富士能株式会社 | Imaging lens and imaging device |
| CN101473439A (en) * | 2006-04-17 | 2009-07-01 | 全视Cdm光学有限公司 | Arrayed imaging systems and associated methods |
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Patent Citations (5)
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|---|---|---|---|---|
| CN1290355A (en) * | 1997-12-05 | 2001-04-04 | 纽约市哥伦比亚大学托管会 | Omnidirectional imaging apparatus |
| CN1685272A (en) * | 2002-09-24 | 2005-10-19 | 西健尔 | Image display unit and projection optical system |
| CN101218546A (en) * | 2005-07-07 | 2008-07-09 | 富士胶片株式会社 | Pattern forming method |
| CN101473439A (en) * | 2006-04-17 | 2009-07-01 | 全视Cdm光学有限公司 | Arrayed imaging systems and associated methods |
| CN101276039A (en) * | 2007-03-27 | 2008-10-01 | 富士能株式会社 | Imaging lens and imaging device |
Non-Patent Citations (1)
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| Cui Tu，Xiong Hu，et al..CSSAR airglow gravity wave imager and its preliminary observation.《Proc. of SPIE》.2009,第7384卷摘要和第1-4部分. * |
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Address after: 100084 No. 1, No. 2, South of Zhongguancun, Haidian District, Beijing Patentee after: NATIONAL SPACE SCIENCE CENTER, CAS Address before: 100084 No. 1, No. 2, South of Zhongguancun, Haidian District, Beijing Patentee before: Space Science & Applied Research Centre, Chinese Academy of Sciences |
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