CN105067119A - Field-of-view segmentation interference imaging spectrometer and imaging method - Google Patents
Field-of-view segmentation interference imaging spectrometer and imaging method Download PDFInfo
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- CN105067119A CN105067119A CN201510519357.5A CN201510519357A CN105067119A CN 105067119 A CN105067119 A CN 105067119A CN 201510519357 A CN201510519357 A CN 201510519357A CN 105067119 A CN105067119 A CN 105067119A
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Abstract
The invention provides a field-of-view split interference imaging spectrometer, which comprises a telescope objective, a field-of-view split prism, a first interferometer, a second interferometer, a first collimating lens, a second collimating lens, a first Fourier transform lens and a second Fourier transform lens, wherein the field-of-view split prism is a sharp-angle reflecting prism which is arranged at an image surface of the telescope objective, and the vertex of the field-of-view split prism is positioned at an optical axis of the telescope objective; light rays from the telescope objective are reflected into two paths of reflected light rays by two reflecting surfaces of the field division prism and enter the first interferometer and the second interferometer through the first collimating lens and the second collimating lens respectively; the first Fourier transform lens and the second Fourier transform lens are arranged in the optical path of emergent light of the first interferometer and the second interferometer. The two fields formed by the invention are respectively used in different spectral ranges, the utilization rate of the optical system field is high, and the system signal-to-noise ratio is high.
Description
Technical field
The present invention relates to a kind of spectrometer, particularly relate to a kind of visual field that can be applicable in space-time unite interferometric modulator imaging spectrometer and split inteference imaging spectrometer and formation method thereof.
Background technology
Space-time unite interferometric modulator imaging spectral technology optical system is made up of interferometer and Fourier transform lens.High-resolution space-time unite interferometric modulator imaging spectrometer is the volume and weight reducing interferometer, adds the telescopic system (being made up of telephotolens and collimating mirror) in compression aperture, as shown in Figure 1 before interferometer.The visual field of space-time unite interferometric modulator imaging spectral technology is generally rectangular field, is divided into spectrum direction and direction in space, and the length in spectrum direction is generally much smaller than the length of direction in space, and Optical System Design visual field is generally circular visual field.Now, the spectrum direction of inteference imaging spectrometer does not utilize the visual field of optical system completely.
The inteference imaging spectrometer of large fabric width is limited by the face battle array of detector, needs detector to splice, and as shown in Figure 2, due to the existence of detector mechanical frames, cannot directly carry out seamless spliced.And the method for traditional employing prismatic decomposition splicing, luminous energy is divided into two, connects subsequent probe device respectively, reduce the luminous energy entering each detector, thus reduce the signal to noise ratio (S/N ratio) of inteference imaging spectrometer.
Summary of the invention
Technical matters to be solved by this invention is to provide the high visual field segmentation inteference imaging spectrometer of a kind of optical system utilization ratio of visual field, simultaneously for interfere type high light spectrum image-forming instrument provides the seamless field stitching method of a kind of noenergy loss.
A kind of visual field segmentation inteference imaging spectrometer provided by the present invention, comprise telephotolens, visual field segmentation prism, collimation lens one, collimation lens two, interferometer one, interferometer two, Fourier transform lens one and Fourier transform lens two, its special character is: visual field segmentation prism is wedge angle reflecting prism, be arranged at the image planes place of telephotolens, the summit of visual field segmentation prism is positioned at the optical axis place of telephotolens; Two reflective surface that the light coming from telephotolens splits prism by visual field are two-way reflection ray, enter interferometer one and interferometer two respectively by collimation lens one and collimation lens two; Fourier transform lens one and Fourier transform lens two are arranged in the light path of the emergent light of interferometer one and interferometer two.
Visual field segmentation interference imaging method provided by the present invention
Its special character is: comprise the following steps:
1) telephotolens converts the light from target to converging ray, images in the image planes place of telephotolens;
2) converging ray of telephotolens is reflected into two misconvergence of beams light one on the other by two reflectings surface by the visual field segmentation prism being positioned at telephotolens image planes place along spectrum direction;
3) collimation lens one and collimation lens two convert two misconvergence of beams light to two parallel ray beams respectively, and then two parallel ray beams enter interferometer one and interferometer two respectively;
4) emergent ray of interferometer one and interferometer two is received by respective detector respectively by Fourier transform lens one and Fourier transform lens two;
5) during the segmentation of visual field, adjust the optical axis of collimation lens one, collimation lens two respectively, the radiation direction that itself and the chief ray of the outer visual field of a certain suitable axle of telephotolens are split after prismatic reflection through visual field is overlapped, completes coupling;
6) during system push-scanning image, the two cover interference systems successively inswept target after the segmentation of visual field, mistiming and step 5) in outside selected two axles visual field chief ray relevant.
The invention has the beneficial effects as follows:
1) feature of the rectangular field of spectrometer (spectrum direction is less than direction in space) is utilized, at an image planes place of system, wedge angle reflecting prism is used to carry out visual field segmentation, two visual field passages are formed respectively after segmentation, follow-up interference imaging spectral detection system can be connect respectively, two visual fields formed are respectively used to different spectral ranges, and optical system utilization ratio of visual field is high, and system signal noise ratio is high;
2) visual field cutting interference imaging spectral technology is adopted, visual field is divided into two along spectrum direction by visual field segmentation prism and is drawn out to follow-on system by reflection, the visual field, left side of half field-of-view is used for detector one, the right side of second half visual field is used for detector two, achieves the seamless field stitching of the noenergy loss of interference imaging spectral technology.
Accompanying drawing explanation
Fig. 1 is inteference imaging spectrometer schematic diagram;
Fig. 2 is the relation of inteference imaging spectrometer apparent field and optical system visual field;
Fig. 3 is the schematic diagram of visual field of the present invention segmentation inteference imaging spectrometer;
Fig. 4 is the schematic diagram of one of application example of the present invention;
Fig. 5 is the seamless field stitching schematic diagram that visual field segmentation imaging spectral technology loses for noenergy.
Embodiment
As shown in Figure 3, the present invention adds visual field segmentation prism 2 at an image planes place of telephotolens 1, and the corner angle of visual field segmentation prism 2 determines that the locus of follow-on system is distributed.
After the segmentation of visual field, two reflective surface that light splits prism by visual field are two-way light, and wherein a road light enters interferometer 1 and Fourier transform lens 1 after being collimated by collimation lens 1; Another road light enters interferometer 26 and Fourier transform lens 28 after being collimated by collimation lens 24; Fourier transform lens 1 and Fourier transform lens 28 are received by respective detector respectively.
During the segmentation of visual field, the optical axis of collimating mirror one, collimating mirror two need be adjusted respectively, the direction that a certain axle of itself and telephotolens outer visual field chief ray is split after prismatic reflection through visual field is overlapped.
During system push-scanning image, the two cover interference systems successively inswept target after the segmentation of visual field, the telephotolens axle chosen when the mistiming adjusts to collimating mirror one, collimating mirror two optical axis outer visual field chief ray is relevant.
Segmentation interference imaging spectral technology in visual field of the present invention is the feature utilizing the rectangular field of spectrometer (spectrum direction is less than direction in space), at an image planes place of system, wedge angle reflecting prism is used to carry out visual field segmentation, two visual field passages are formed respectively after segmentation, can connect follow-up interference imaging spectral detection system respectively, its light path as shown in Figure 3.After segmentation, the light of visual field one and visual field two is reflected up and down by visual field segmentation prism respectively, enters subsequent optical system, through interferometer and Fourier transform lens, arrives two detectors.
Fig. 4 gives one embodiment of the present of invention, namely segmentation interference imaging spectral technology in visual field can be used for spread spectrum segment limit, namely the system of visual field one and visual field two is respectively used to different spectral ranges, and such as visual field one is for visible near-infrared spectral coverage, and visual field two is for short-wave infrared spectral coverage.Also can be used for the detection of same spectral coverage double light path, elevator system signal to noise ratio (S/N ratio).
Example two: second seamless spliced technology in visual field be applied as without optical energy loss of the present invention.Be limited by the face battle array size of sensitive detection parts, large fabric width inteference imaging spectrometer device needs to carry out field stitching, due to the existence of detector mechanical frames, cannot directly carry out seamless spliced, and adopt the image planes joining method of prismatic decomposition, luminous energy can be made to be divided into two, to reduce the signal to noise ratio (S/N ratio) of inteference imaging spectrometer device.Adopt visual field segmentation interference imaging spectral technology, being divided into two along spectrum direction visual field by visual field segmentation prism and being drawn out to follow-on system, the visual field, left side of half field-of-view is used for detector one, and the right side of second half visual field is used for detector two, as shown in Figure 5.The advantage of this visual field segmentation interference imaging spectral technology is the seamless field stitching of the noenergy loss achieving interference imaging spectral technology.
Claims (2)
1. a visual field segmentation inteference imaging spectrometer, comprise telephotolens, visual field segmentation prism, interferometer one, interferometer two, collimation lens one, collimation lens two, Fourier transform lens one and Fourier transform lens two, it is characterized in that: visual field segmentation prism is wedge angle reflecting prism, it is arranged at the image planes place of telephotolens, and the summit of visual field segmentation prism is positioned at the optical axis place of telephotolens; Two reflective surface splitting prism by visual field from the light of telephotolens are two-way reflection ray, enter interferometer one and interferometer two respectively by collimation lens one and collimation lens two; Fourier transform lens one and Fourier transform lens two are arranged in the light path of the emergent light of interferometer one and interferometer two.
2. a formation method for segmentation inteference imaging spectrometer in visual field according to claim 1, is characterized in that: comprise the following steps:
1) telephotolens converts the light from target to converging ray, images in the image planes place of telephotolens;
2) converging ray of telephotolens is reflected into two misconvergence of beams light one on the other by two reflectings surface by the visual field segmentation prism being positioned at telephotolens image planes place along spectrum direction;
3) collimation lens one and collimation lens two convert two misconvergence of beams light to two parallel ray beams respectively, and then two parallel ray beams enter interferometer one and interferometer two respectively;
4) emergent ray of interferometer one and interferometer two is received by respective detector respectively by Fourier transform lens one and Fourier transform lens two.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106125280A (en) * | 2016-08-19 | 2016-11-16 | 四川九洲电器集团有限责任公司 | Zigzag type optical system for field stitching |
| CN106568509A (en) * | 2016-10-20 | 2017-04-19 | 中国科学院西安光学精密机械研究所 | Double-optical-path large-aperture static interference spectrometer |
| CN113029365A (en) * | 2021-03-11 | 2021-06-25 | 中国科学院光电技术研究所 | Large-view-field high-order composite wavefront sensor for solar adaptive optics |
| CN115342917A (en) * | 2022-08-31 | 2022-11-15 | 中国科学院西安光学精密机械研究所 | Compact large-view-field spectral imaging system based on sub-view-field splicing |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2446503Y (en) * | 1999-12-28 | 2001-09-05 | 中国科学院西安光学精密机械研究所 | High-sensitivity interference imaging spectrum device |
| JP2006019916A (en) * | 2004-06-30 | 2006-01-19 | Photron Ltd | Multi-screen spectrograph |
| CN101943602A (en) * | 2010-07-28 | 2011-01-12 | 中国科学院长春光学精密机械与物理研究所 | Field-of-view beam splitter of wide-width imaging spectrograph |
| CN102261909A (en) * | 2011-04-20 | 2011-11-30 | 中国科学院光电技术研究所 | Spliced large-area-array digital aerial surveying camera |
| CN103940742A (en) * | 2014-04-18 | 2014-07-23 | 中国科学院光电研究院 | Integrated airborne large-visual-field high-spectrum imaging system based on composite Fery prisms |
| CN204924441U (en) * | 2015-08-21 | 2015-12-30 | 中国科学院西安光学精密机械研究所 | Field-of-view segmentation interference imaging spectrometer |
-
2015
- 2015-08-21 CN CN201510519357.5A patent/CN105067119A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2446503Y (en) * | 1999-12-28 | 2001-09-05 | 中国科学院西安光学精密机械研究所 | High-sensitivity interference imaging spectrum device |
| JP2006019916A (en) * | 2004-06-30 | 2006-01-19 | Photron Ltd | Multi-screen spectrograph |
| CN101943602A (en) * | 2010-07-28 | 2011-01-12 | 中国科学院长春光学精密机械与物理研究所 | Field-of-view beam splitter of wide-width imaging spectrograph |
| CN102261909A (en) * | 2011-04-20 | 2011-11-30 | 中国科学院光电技术研究所 | Spliced large-area-array digital aerial surveying camera |
| CN103940742A (en) * | 2014-04-18 | 2014-07-23 | 中国科学院光电研究院 | Integrated airborne large-visual-field high-spectrum imaging system based on composite Fery prisms |
| CN204924441U (en) * | 2015-08-21 | 2015-12-30 | 中国科学院西安光学精密机械研究所 | Field-of-view segmentation interference imaging spectrometer |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106125280A (en) * | 2016-08-19 | 2016-11-16 | 四川九洲电器集团有限责任公司 | Zigzag type optical system for field stitching |
| CN106125280B (en) * | 2016-08-19 | 2019-04-23 | 四川九洲电器集团有限责任公司 | Zigzag type optical system for field stitching |
| CN106568509A (en) * | 2016-10-20 | 2017-04-19 | 中国科学院西安光学精密机械研究所 | Double-optical-path large-aperture static interference spectrometer |
| CN113029365A (en) * | 2021-03-11 | 2021-06-25 | 中国科学院光电技术研究所 | Large-view-field high-order composite wavefront sensor for solar adaptive optics |
| CN115342917A (en) * | 2022-08-31 | 2022-11-15 | 中国科学院西安光学精密机械研究所 | Compact large-view-field spectral imaging system based on sub-view-field splicing |
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