CN101923179A - All-sky atmosphere gravitational wave imager - Google Patents
All-sky atmosphere gravitational wave imager Download PDFInfo
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- CN101923179A CN101923179A CN2009102374183A CN200910237418A CN101923179A CN 101923179 A CN101923179 A CN 101923179A CN 2009102374183 A CN2009102374183 A CN 2009102374183A CN 200910237418 A CN200910237418 A CN 200910237418A CN 101923179 A CN101923179 A CN 101923179A
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Abstract
The invention provides an all-sky atmosphere gravitational wave imager which comprises a fisheye lens, a three-lens light path adjustment lens group, an optical filter, an imaging lens and a scientific CCD (Charge Coupled Device) camera, wherein the three-lens light path adjustment lens group comprises a first lens, a second lens and a third lens, the first lens is a plus lens and is arranged close to the focal plane of the fisheye lens, the second lens which is a plus lens and the third lens which is a minus lens are arranged behind the first lens, and the third lenses are matched with the fisheye lens mutually so that light emitted from the third lens meets the angular requirement of the band width of the optical filter on incident light, then passes through the optical filter, the imaging lens sequentially and finally reaches the scientific CCD camera connected with the imaging lens, and thus, the all-sky atmosphere gravitational wave imager realizes the all-sky 180-degree atmosphere gravitational wave imaging by taking OH and O2 airglow radiation as a tracer. The all-sky atmosphere gravitational wave imager not only can realize higher-accuracy gravitational wave activity observation, but also can reduce cost and size and has concise structure and high accuracy.
Description
Technical field
The present invention relates to a kind of optical imagery instrument that is used to observe atmospheric gravity waves, relate in particular to a kind of all-sky atmosphere gravitational wave imager that can realize the atmospheric gravity waves activity level two-dimensional imaging of all-sky.
Background technology
Atmospheric gravity waves can produce disturbance to the airglow radiating layer in upload procedure, be tracer with the radiation of atmosphere airglow, can realize the observation to the atmospheric gravity waves activity.In atmosphere airglow radiation belt on the middle and senior level, be positioned at visible light to the near-infrared band radiation stronger be the OH in broadband and the O2 airtglow layer of arrowband, its wave band is about 750-850nm respectively, 865 ± 2.5nm, and these two kinds of airglow radiation all can be used for the movable imaging observation of gravity wave.
Fig. 1 is the structural representation of existing all-sky atmosphere gravitational wave imager, as shown in Figure 1, the formation of existing all-sky atmosphere gravitational wave imager comprises: the optical filter of specific fish eye lens, filter glass group, large-size and other specific optical device.Its shortcoming is that the fish eye lens of specific model is bought difficulty relatively, the optical filter cost height of large-size, and increased the diameter of imager, the Design and Machining of particular optical eyeglass is than complexity etc., thereby in the atmospheric gravity waves multipoint observation, aspects such as imager miniaturization portability limit to some extent.
Summary of the invention
In order to address the above problem, the object of the present invention is to provide a kind of gravity wave activity observation that not only can realize degree of precision equally, also can reduce cost and size, succinctly not lose the all-sky atmosphere gravitational wave imager of realizing the all-sky atmosphere gravitational wave imaging accurately again.
For achieving the above object, all-sky atmosphere gravitational wave imager of the present invention, comprise: fish eye lens, the three-chip type light path that is made of first eyeglass, second eyeglass and prismatic glasses are adjusted lens set, optical filter, imaging lens and Scientific Grade CCD Camera, with OH and the radiation of O2 airglow is tracer, realizes the all-sky atmosphere gravitational wave imaging.
Wherein, described first eyeglass adopts positive lens, and place it near the described fish-eye focal plane, then place described second eyeglass that adopts positive lens and the described prismatic glasses that adopts negative lens at the rear of this first eyeglass, these three lens and described fish eye lens cooperatively interact, make and satisfy described optical filter bandwidth to the angle of incident light requirement from the light of described prismatic glasses outgoing, and then make light pass through circular described optical filter, pass through described imaging lens again, arrive the described Scientific Grade CCD Camera that is connected with described imaging lens at last, thereby realize 180 ° of atmospheric gravity waves imagings of all-sky.
Wherein, described fish eye lens can adopt commercial general fish eye lens, for example focal length 10.5mm #tF2.8, focal length 16mm#F3.5 and focal length 8mm#F2.8 or the like.
Described optical filter can adopt the optical filter of 2 inches diameter or 3 inches etc.
Described imaging lens and Scientific Grade CCD Camera adopt commercial imaging lens and scientific grade CCD to get final product.
In addition, as further improved version, the present invention also provides a kind of all-sky atmosphere gravitational wave imager, it is characterized in that, comprise: fish eye lens, the three-chip type light path that is made of first eyeglass, second eyeglass and prismatic glasses are adjusted optical filter, filter wheel, imaging lens and the Scientific Grade CCD Camera of lens set, multi-disc different-waveband, with OH and the radiation of O2 airglow is tracer, realizes the all-sky atmosphere gravitational wave imaging.
Wherein, described first eyeglass adopts positive lens, and place it near the described fish-eye focal plane, then place described second eyeglass that adopts positive lens and the described prismatic glasses that adopts negative lens at the rear of this first eyeglass, these three lens and described fish eye lens cooperatively interact, make and satisfy described optical filter bandwidth to the angle of incident light requirement from the light of described prismatic glasses outgoing, and then make the described filter wheel of the optical filter of light by described multi-disc different-waveband is housed, pass through described imaging lens again, arrive the described Scientific Grade CCD Camera that is connected with described imaging lens at last, realize hyperchannel observation in turn by computer control, thereby realize 180 ° of atmospheric gravity waves imagings of all-sky.
The beneficial effect of all-sky atmosphere gravitational wave imager of the present invention is: the present invention adopts fish eye lens to realize the all-sky imaging, and the optical filter that adopts preposition eyeglass assembly to close minor diameter filters.Because narrow band pass filter, adopts preposition three-chip type lens set here to the angle of incident light sensitivity, make the light angle that incides optical filter can satisfy the angle requirement of broad band pass filter and narrow band pass filter simultaneously, make things convenient for simultaneously and adjust optical aberration.By the imaging lens of a commercialization, cooperate again, finally realize being tracer, realize imaging observation atmospheric gravity waves with the radiation of atmosphere airglow with Scientific Grade CCD Camera.Thus, adopt commercial general fish eye lens, for example focal length 10.5mm#F2.8, with the optical filter of minor diameter, for example 2 inches, in conjunction with three-chip type filter glass group, and commercial imaging lens and scientific grade CCD, succinctly do not lose again and realize the all-sky atmosphere gravitational wave imaging accurately.
Description of drawings
Fig. 1 is the structural representation of existing all-sky atmosphere gravitational wave imager.
Fig. 2 is the structure and the light path synoptic diagram of all-sky atmosphere gravitational wave imager of the present invention, is example with focal length 10.5mm#F2.8 fish eye lens and 2 inches diameter optical filter.
Embodiment
Below in conjunction with the drawings and specific embodiments all-sky atmosphere gravitational wave imager of the present invention is described in detail.
Fig. 2 is the structure and the light path synoptic diagram of all-sky atmosphere gravitational wave imager of the present invention, is example with focal length 10.5mm#F2.8 fish eye lens and 2 inches diameter optical filter.As shown in Figure 2, all-sky atmosphere gravitational wave imager of the present invention, comprise: fish eye lens 1, the three-chip type light path that is made of first eyeglass 2, second eyeglass 3 and prismatic glasses 4 are adjusted lens set, optical filter 5, imaging lens 6 and Scientific Grade CCD Camera 7, with OH and the radiation of O2 airglow is tracer, realization is to the all-sky atmosphere gravitational wave imaging
Wherein, first eyeglass 2 adopts positive lens, and place it near the focal plane of fish eye lens 1, then place second eyeglass 3 that adopts positive lens and the prismatic glasses 4 that adopts negative lens at the rear of this first eyeglass 2, these three lens and fish eye lens 1 cooperatively interact, make and satisfy optical filter 5 bandwidth to the angle of incident light requirement from the light of prismatic glasses 4 outgoing, and then make light pass through circular optical filter 5, pass through imaging lens 6 again, arrive the Scientific Grade CCD Camera 7 that is connected with imaging lens 6 at last, thereby realize 180 ° of atmospheric gravity waves imagings of all-sky.
Wherein, fish eye lens 1 can adopt commercial general fish eye lens, for example: focal length 10.5mm #F2.8, focal length 16mm #F3.5 and focal length 8mm #F2.8 or the like.Optical filter 5 can adopt the circular filter of minor diameter, and the optical filter size is as 2 inches, 3 inches etc.In addition, imaging lens 6 and Scientific Grade CCD Camera 7 adopt the imaging lens and the scientific grade CCD of general commercial to get final product among the present invention.
In addition, as shown in Figure 2, what solid line among the figure and dotted line were represented respectively is the light of 0 ° and 90 ° incident, promptly can realize the all-sky atmosphere gravitational wave two-dimensional imaging.Light runs through whole optical 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, pass first eyeglass 2 of three-chip type lens set, pass second eyeglass 3 and the prismatic glasses 4 then, thereby make light angle reach the bandwidth requirement of optical filter 5,, arrive the plane of Scientific Grade CCD Camera 7 afterwards then through an imaging lens 6.
Image by the CCD cameras record after, can be by being attached thereto the computing machine derived data.
In addition, version as a further improvement on the present invention can be positioned over the optical filter 5 of a plurality of different-wavebands in the filter wheel, and promptly the position of optical filter 5 is provided with the filter wheel (not shown) that a plurality of different-waveband optical filters 5 are housed in Fig. 2.Light from fish eye lens 1 outgoing, after arriving the focal plane of fish eye lens 1, pass first eyeglass 2 of three-chip type lens set, pass second eyeglass 3 and the prismatic glasses 4 then, thereby make light angle reach the bandwidth requirement of the optical filter 5 of a plurality of different-wavebands, and make the filter wheel (not shown) of the optical filter 5 of light by the multi-disc different-waveband is housed, and pass through imaging lens 6 then, arrive the plane of Scientific Grade CCD Camera 7 afterwards.Thus, with the CCD camera,, can realize hyperchannel observation in turn by computer control.
It should be noted last that above embodiment is only unrestricted in order to technical scheme of the present invention to be described.Although the present invention is had been described in detail with reference to embodiment, 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 (8)
1. all-sky atmosphere gravitational wave imager, it is characterized in that, comprise: fish eye lens, the three-chip type light path that is made of first eyeglass, second eyeglass and prismatic glasses are adjusted lens set, optical filter, imaging lens and Scientific Grade CCD Camera, with OH and the radiation of O2 airglow is tracer, realization is to the all-sky atmosphere gravitational wave imaging
Wherein, described first eyeglass adopts positive lens, and place it near the described fish-eye focal plane, then place described second eyeglass that adopts positive lens and the described prismatic glasses that adopts negative lens at the rear of this first eyeglass, these three lens and described fish eye lens cooperatively interact, make and satisfy described optical filter bandwidth to the angle of incident light requirement from the light of described prismatic glasses outgoing, and then make light pass through described optical filter, pass through described imaging lens again, arrive the described Scientific Grade CCD Camera that is connected with described imaging lens at last, thereby realize 180 ° of atmospheric gravity waves imagings of all-sky.
2. all-sky atmosphere gravitational wave imager as claimed in claim 1 is characterized in that, described fish eye lens adopts: the camera lens of focal length 10.5mm #F2.8, focal length 16mm #F3.5 or focal length 8mm #F2.8.
3. all-sky atmosphere gravitational wave imager as claimed in claim 1 is characterized in that, described optical filter adopts the small diameter circular optical filter of 2 inches or 3 inches.
4. all-sky atmosphere gravitational wave imager as claimed in claim 1 is characterized in that, described imaging lens and Scientific Grade CCD Camera adopt general commercial imaging lens and scientific grade CCD.
5. all-sky atmosphere gravitational wave imager, it is characterized in that, comprise: fish eye lens, the three-chip type light path that is made of first eyeglass, second eyeglass and prismatic glasses are adjusted optical filter, filter wheel, imaging lens and the Scientific Grade CCD Camera of lens set, multi-disc different-waveband, with OH and the radiation of O2 airglow is tracer, realization is to the all-sky atmosphere gravitational wave imaging
Wherein, described first eyeglass adopts positive lens, and place it near the described fish-eye focal plane, then place described second eyeglass that adopts positive lens and the described prismatic glasses that adopts negative lens at the rear of this first eyeglass, these three lens and described fish eye lens cooperatively interact, make and satisfy described optical filter bandwidth to the angle of incident light requirement from the light of described prismatic glasses outgoing, and then make the described filter wheel of the optical filter of light by described multi-disc different-waveband is housed, pass through described imaging lens again, arrive the described Scientific Grade CCD Camera that is connected with described imaging lens at last, realize hyperchannel observation in turn by computer control, thereby realize 180 ° of atmospheric gravity waves imagings of all-sky.
6. all-sky atmosphere gravitational wave imager as claimed in claim 5 is characterized in that, described fish eye lens adopts: the camera lens of focal length 10.5mm #F2.8, focal length 16mm #F3.5 or focal length 8mm #F2.8.
7. all-sky atmosphere gravitational wave imager as claimed in claim 5 is characterized in that, described optical filter adopts the small diameter circular optical filter of 2 inches or 3 inches.
8. all-sky atmosphere gravitational wave imager as claimed in claim 5 is characterized in that, described imaging lens and Scientific Grade CCD Camera adopt general commercial imaging lens and scientific grade CCD.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 200910237418 CN101923179B (en) | 2009-11-06 | 2009-11-06 | All-sky atmosphere gravitational wave imager |
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| CN 200910237418 CN101923179B (en) | 2009-11-06 | 2009-11-06 | All-sky atmosphere gravitational wave imager |
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| CN101923179A true CN101923179A (en) | 2010-12-22 |
| CN101923179B CN101923179B (en) | 2013-04-24 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111238577A (en) * | 2020-03-31 | 2020-06-05 | 南京信息工程大学 | Airglow gravitational wave multi-parameter detector |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US6118474A (en) * | 1996-05-10 | 2000-09-12 | The Trustees Of Columbia University In The City Of New York | Omnidirectional imaging apparatus |
| US7068444B2 (en) * | 2002-09-24 | 2006-06-27 | Kenji Nishi | Image display unit and projection optical system |
| JP2007017721A (en) * | 2005-07-07 | 2007-01-25 | Fujifilm Holdings Corp | Pattern forming method |
| CN101473439B (en) * | 2006-04-17 | 2013-03-27 | 全视技术有限公司 | Arrayed imaging systems and associated methods |
| JP4885776B2 (en) * | 2007-03-27 | 2012-02-29 | 富士フイルム株式会社 | Wide-angle lens for imaging and imaging device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111238577A (en) * | 2020-03-31 | 2020-06-05 | 南京信息工程大学 | Airglow gravitational wave multi-parameter detector |
| 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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| CN101923179B (en) | 2013-04-24 |
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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 |