CN101526400A - Hadamard transform interferometric spectral imaging method and Hadamard transform interferometric spectral imaging equipment - Google Patents
Hadamard transform interferometric spectral imaging method and Hadamard transform interferometric spectral imaging equipment Download PDFInfo
- Publication number
- CN101526400A CN101526400A CN200810210069A CN200810210069A CN101526400A CN 101526400 A CN101526400 A CN 101526400A CN 200810210069 A CN200810210069 A CN 200810210069A CN 200810210069 A CN200810210069 A CN 200810210069A CN 101526400 A CN101526400 A CN 101526400A
- Authority
- CN
- China
- Prior art keywords
- template
- adama
- detector
- hadamard
- adama template
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000000701 chemical imaging Methods 0.000 title abstract description 4
- 230000003595 spectral effect Effects 0.000 claims abstract description 38
- 238000003384 imaging method Methods 0.000 claims abstract description 15
- 238000012545 processing Methods 0.000 claims abstract description 5
- 241001436679 Adama Species 0.000 claims description 87
- 238000001228 spectrum Methods 0.000 claims description 21
- 238000010008 shearing Methods 0.000 claims description 18
- 230000003287 optical effect Effects 0.000 claims description 12
- 230000015572 biosynthetic process Effects 0.000 claims description 8
- 238000012634 optical imaging Methods 0.000 claims description 8
- 238000006243 chemical reaction Methods 0.000 claims description 7
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims description 3
- 230000003071 parasitic effect Effects 0.000 claims description 3
- 230000010287 polarization Effects 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 2
- 239000011800 void material Substances 0.000 abstract 3
- 230000000694 effects Effects 0.000 description 4
- 230000003068 static effect Effects 0.000 description 4
- 239000006185 dispersion Substances 0.000 description 3
- 238000000354 decomposition reaction Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001506 fluorescence spectroscopy Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000005428 wave function Effects 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/28—Investigating the spectrum
- G01J3/2823—Imaging spectrometer
Landscapes
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- General Physics & Mathematics (AREA)
- Spectrometry And Color Measurement (AREA)
Abstract
The invention relates to a Hadamard transform interferometric spectral imaging method comprising the following steps: (1) a target is imaged on the surface of a Hadamard template; (2) a field range taking part in the Hadamard transform coding is limited and vagabond ray is filtered; (3) the Hadamard template is cut into two void Hadamard templates in the direction vertical to the ray axis, and the two void Hadamard templates are parallel to and have the same width direction with the Hadamard template; (4) the two void Hadamard templates interfere with each other and the interferometric fringe direction is vertical to the cutting direction; (5) an interference pattern signal is sent in a computer processing system; (6) the coding is completed after the Hadamard template transforms coding for n times; (7) Fourier transform is performed for the interference pattern signal to obtain n target spectral images coded by the Hadamard template, the two-dimensional space information and the one-dimensional spectral information of the target are finally obtained after the images are decoded, and the imaging is completed. The invention is not limited by the size of the Hadamard templates and has simple formed system structure.
Description
Technical field
The present invention relates to a kind of interference spectrum formation method and equipment, the Hadamard transform interference spectrum imager that is specifically related to a kind of Hadamard transform interference spectrum formation method and designs by this method.
Background technology
Hadamard transform (Hadamard Transform) spectral technique is a kind of novel spectral modulation technology that is similar to Fourier transform (Fourier Transform) that grows up over nearly 40 years.Hadamard transform is based on a kind of conversion of plane wave function, advantage [M.O.Harwit with high-energy input, multi channel imaging and high s/n ratio, N.J.A.Slone.Hadamard Transform Opt ics.Academic:New York, 1980], be specially adapted to the faint light spectrum signal and detect, Hadamard transform light spectrum image-forming technology is one of forward position research topic in the world.
All Hadamard transform light spectrum image-forming technology all are entrance slit or the exit slits that replaces conventional color dispersion-type (adopting prismatic decomposition or grating beam splitting) spectrometer with the Adama coding templet at present, perhaps contemporary for the two, each spectral component is carried out two-dimensional space information and the one dimension spectral information that the arithmetic decoding obtains detected target.
Hadamard transform light spectrum image-forming technology is treated the Adama template as a wide slot, it is as a whole to look each spacing element that participates in coding, but owing to Adama template tool has the dimensions, and the many more sizes of code element are wide more, can produce the dislocation and the aliasing of spatial information and spectral information; In addition, because what the Hadamard transform optical spectrum imagers adopted is the chromatic dispersion light-splitting method, the width of Adama template is also restricting spectral resolution and spatial resolution simultaneously, the Adama template is narrow more, spectral resolution and spatial resolution are high more, but the Adama template is narrow more, and to enter into the luminous energy of spectrometer just few more, and few more realization high spectral resolution of luminous energy and high spatial resolution are just difficult more.
In order to overcome above-mentioned unfavorable factor, for larger-size Adama template, usually take between template and light-dividing device, to place the way of set of cylindrical lenses, template and target are looked like to compress [Q.S.Hanley, P.J.Verveer, T.M.Jovin.Spectral imaging in a programmable array microscope by Hadamardtransform fluorescence spectroscopy.Appl.Spectrosc., 1999,53 (1): 1～10], increased the complexity of instrument.The effect of set of cylindrical lenses only is that the Adama template with the size broad is compressed into the narrower Adama template of size, because the spectral resolution of color dispersion-type spectrometer and the width of Adama template condition each other, the narrower Adama template of size helps improving the spectral resolution of instrument, but the Adama template after being compressed always has certain width, so the dislocation and the aliasing problem of space information and spectral information can't be avoided all the time in the Hadamard transform light spectrum image-forming technology, this dislocation and aliasing can only alleviate by said method but can't thoroughly eliminate.
Summary of the invention
The objective of the invention is to propose a kind of Hadamard transform interference spectrum formation method and equipment, it has solved, and space resolution and spectral resolution are limited by the Adama template size simultaneously in the background technology, and system architecture complicated technology problem.
Technical solution of the present invention is:
A kind of Hadamard transform interference spectrum formation method, its special character is, may further comprise the steps:
(1) preposition optical imaging system 1 with target imaging on Adama template 3 surfaces with n code element;
(2) be close to Adama template 3 field range and the filtration parasitic light that a diaphragm 2 restrictions participate in the Hadamard transform coding is set;
(3) target behind Adama template 3 coding looks like to enter lateral shearing interferometer 4, and Adama template 3 is cut into two empty Adama templates by lateral shearing interferometer 4 on perpendicular to the direction of optical axis, and is parallel with Adama template 3 and Width is consistent;
(4) two empty Adama templates are through Fu Shi mirror 5 and cylindrical mirror 6, on detector 7, produce and interfere, the interference fringe direction is vertical with shear direction, the interference light path difference is directly proportional with the effective dimensions of shearing displacement and detector, be inversely proportional to the focal length of Fu Shi mirror 5, Adama template 3 is positioned at the front focal plane of Fu Shi mirror 5, and detector 7 is positioned at the back focal plane of Fu Shi mirror 5 and cylindrical mirror 6;
(5) interferogram signal of detector 7 outputs is carried out sending in the computer processing system 8 after the digitizing;
(6) 3 conversion of Adama template are once encoded, and detector 7 is gathered an interferogram signal, after Adama template 3 conversion n time, finish coding;
(7) interferogram signal that collects for n time is carried out Fourier transform respectively, obtain the spectrum picture of n width of cloth target behind Adama template coding, these images finally obtain the two-dimensional space information and the one dimension spectral information of target after the fast handmard transform decoding, finish imaging.
A kind of equipment of realizing Hadamard transform interference spectrum formation method, comprise the Adama template 3 that is provided with along light path, target imaging in the Adama template 3 lip-deep preposition optical imaging systems 1 that n code element arranged, it is cut into the lateral shearing interferometer 4 of two empty Adama templates in Adama template 3 on perpendicular to the direction of optical axis, detector 7 and the computer system 8 that is connected with detector 7, its special character is: also comprise and be close to the diaphragm 2 that Adama template 3 is provided with; Be arranged at fourier lens 5 and cylindrical mirror 6 between lateral shearing interferometer 4 and the detector 7, described Adama template 3 is positioned at the front focal plane of fourier lens 5, and described detector 7 is positioned at the back focal plane of fourier lens 5 and cylindrical mirror 6.
The form of above-mentioned Adama template 3 is movable type mechanical template, LCD space light modulator or digital little level crossing array.
Above-mentioned two empty Adama templates and Adama template 3 are parallel and Width is consistent.
Above-mentioned lateral shearing interferometer is the Sagnac interferometer, Mach-Zehnder interferometer or polarization birefringent interferometer.
Above-mentioned detector 7 is the receiver of Hadamard transform interference signal, comprises linear array detector and planar array detector.
Crucial part of the present invention is to replace color dispersion-type in traditional Hadamard transform optical spectrum imagers (adopting prismatic decomposition or grating beam splitting) spectrometer with static spatial modulation type interference spectroscope.
Static spatial modulation type interference spectroscope is similar to the color dispersion-type spectrometer in form, the color dispersion-type spectrometer is to utilize dispersion element (grating or prism etc.) that the polychromatic light chromatic dispersion at Adama template place is divided into the sequence spectral line, then with the intensity of the every spectral line of detector measurement unit, spatial modulation type interference spectroscope then is to utilize lateral shearing interferometer to obtain the interference strength of Adama template place all spectral line units of polychromatic light at different optical path differences place simultaneously, and interferogram is carried out the spectrogram that Fourier transform obtains target.
Both essential differences are, the width of Adama template is restricting spectral resolution and spatial resolution simultaneously and is unavoidably producing the dislocation and the aliasing of spatial information and spectral information in the color dispersion-type spectrometer, the Adama template is narrow more, spectral resolution and spatial resolution are high more, but the Adama template is narrow more, and to enter into the luminous energy of spectrometer few more, the realization of few more high spectral resolution of luminous energy and high spatial resolution is just difficult more, and therefore the contradiction between high-energy percent of pass, high spectral resolution and the high spatial resolution is irreconcilable in the color dispersion-type spectrometer; And the degree of modulation of interferogram is not subjected to factor affecting such as Adama shape of template, size in static spatial modulation type interference spectroscope, this is a big advantage of static spatial modulation type interference spectrum technology itself, this means that spectral resolution no longer is subjected to the restriction of Adama template width, the width of Adama template is only relevant with the spatial resolution of spectrometer, spectral resolution is then decided by the pixel number of detector, and the optical path difference of all code elements remains unanimity in the Adama template, can not produce dislocation and aliasing.Therefore under the condition that keeps the high light spectral resolution, the Adama template can be very wide or be had an arbitrary shape, thereby can increase field angle (increasing Adama template height), improve emittance (increasing Adama template area), have potential high flux advantage, high-energy percent of pass, high spectral resolution and high spatial resolution are realized easily simultaneously.
The present invention has thoroughly save in traditional Hadamard transform light spectrum image-forming technology in order to improve the extra cylindrical lens assembly that increases of spectral resolution, thus simple in structure, volume is little, in light weight.
Summing up the present invention has the following advantages:
1) optical path difference of all code elements remains unanimity in the Adama template, so to the spatial coherence no requirement (NR) of target, fundamentally avoided the dislocation and the aliasing of spatial information and spectral information.
2) degree of modulation of interferogram is not subjected to the influence of factors such as Adama shape of template, size, and the size of spectral resolution and Adama template is irrelevant, and high spatial resolution and high spectral resolution imaging realize easily.
3) because the size of spectral resolution and Adama template is irrelevant, thereby allow bigger field angle (increasing HT template height) and arbitrary shape, big or small Adama template, luminous flux is significantly improved.
4) Adama template width is only relevant with one-dimensional space resolution, and is irrelevant with spectral resolution, therefore reduced design difficulty.
5) thoroughly save cylindrical lens compression link in traditional Hadamard transform light spectrum image-forming technology, thus simple in structure, volume is little, in light weight.
Description of drawings
Fig. 1 is a system architecture synoptic diagram of the present invention.
Drawing reference numeral explanation: the preposition optical imaging system of 1-, 2-diaphragm, 3-Adama template, 4-lateral shearing interferometer, 5-fourier lens, 6-cylindrical mirror, 7-detector, 8-computer processing system.
Embodiment
Referring to Fig. 1, technical method of the present invention is:
Preposition optical imaging system 1 with target imaging on Adama template surface with n code element;
Diaphragm 2 is close to 3 placements of Adama template, and its effect is that restriction participates in the field range of Hadamard transform coding and prevents and treats parasitic light;
Adama template 3 is positioned at the front focal plane place of fourier lens 5, target behind Adama template 3 codings looks like to enter lateral shearing interferometer 4, Adama template 3 is sheared into two empty Adama templates on the direction perpendicular to optical axis, they are parallel with former Adama template 3 and Width is consistent;
Two empty Adama templates are through Fu Shi mirror 5 and cylindrical mirror 6, on the detector 7 that is positioned at their back focal planes, produce and interfere, the interference fringe direction is vertical with shear direction, the interference light path difference is directly proportional with the effective dimensions of shearing displacement and detector, be inversely proportional to the focal length of Fu Shi mirror 5, optical path difference is big more, and spectral resolution is high more;
The interferogram signal of detector 7 outputs is carried out sending in the computer processing system 8 after the digitizing;
3 conversion of Adama template are once encoded, and detector 7 is gathered an interferogram signal, after Adama template 3 conversion n time, finish coding;
The interferogram signal that collects for n time is carried out Fourier transform respectively, obtains the spectrum picture of n width of cloth target behind Adama template coding, and these images finally obtain the two-dimensional space information and the one dimension spectral information of target after the fast handmard transform decoding.
Wherein preposition optical imaging system 1 can adopt various forms such as refraction, catadioptric and reflection, is the fundamental purpose of preposition optical imaging system 1 on the Adama template surface with target imaging.
Wherein the effect of Adama template is to produce n (n=2
n-1, m=2,3 ...) inferior Adama encoding array, thereby target is carried out n Hadamard transform coding, the Adama template can adopt forms such as movable type mechanical template, LCD space light modulator and digital little level crossing array.
Wherein lateral shearing interferometer can adopt Sagnac interferometer, Mach-Zehnder interferometer, polarization birefringent interferometer etc.Regardless of the concrete structure of lateral shearing interferometer, its main effect is that the Adama template is aplanatic separately perpendicular to optical axis.
Wherein detector 7 is receivers of Hadamard transform interference signal, adopts linear array detector can obtain the one-dimensional space and the one dimension spectral information of target; Adopt planar array detector can obtain the two-dimensional space and the one dimension spectral information of target.
Claims (6)
1. a Hadamard transform interference spectrum formation method is characterized in that, may further comprise the steps:
(1) preposition optical imaging system 1 with target imaging on Adama template 3 surfaces with n code element;
(2) be close to Adama template 3 field range and the filtration parasitic light that diaphragm 2 restrictions participate in the Hadamard transform coding is set;
(3) target behind Adama template 3 coding looks like to enter lateral shearing interferometer 4, and Adama template 3 is cut into two empty Adama templates by lateral shearing interferometer 4 on perpendicular to the direction of optical axis, and is parallel with Adama template 3 and Width is consistent;
(4) two empty Adama templates are through Fu Shi mirror 5 and cylindrical mirror 6, on detector 7, produce and interfere, the interference fringe direction is vertical with shear direction, the interference light path difference is directly proportional with the effective dimensions of shearing displacement and detector, be inversely proportional to the focal length of Fu Shi mirror 5, Adama template 3 is positioned at the front focal plane of Fu Shi mirror 5, and detector 7 is positioned at the back focal plane of Fu Shi mirror 5 and cylindrical mirror 6;
(5) interferogram signal of detector 7 outputs is carried out sending in the computer processing system 8 after the digitizing;
(6) 3 conversion of Adama template are once encoded, and detector 7 is gathered an interferogram signal, after Adama template 3 conversion n time, finish coding;
(7) interferogram signal that collects for n time is carried out Fourier transform respectively, obtain the spectrum picture of n width of cloth target behind Adama template coding, these images finally obtain the two-dimensional space information and the one dimension spectral information of target after the fast handmard transform decoding, finish imaging.
2. plant the equipment of realizing claim 1 formation method, comprise the Adama template 3 that is provided with along light path, target imaging in the Adama template 3 lip-deep preposition optical imaging systems 1 that n code element arranged, it is cut into the lateral shearing interferometer 4 of two empty Adama templates in Adama template 3 on perpendicular to the direction of optical axis, detector 7 and the computer system 8 that is connected with detector 7
It is characterized in that: also comprise and be close to the diaphragm 2 that Adama template 3 is provided with; Be arranged at fourier lens 5 and cylindrical mirror 6 between lateral shearing interferometer 4 and the detector 7, described Adama template 3 is positioned at the front focal plane of fourier lens 5, and described detector 7 is positioned at the back focal plane of fourier lens 5 and cylindrical mirror 6.
3. according to the described imaging device of claim 2, it is characterized in that: the form of described Adama template 3 is movable type mechanical template, LCD space light modulator or digital little level crossing array.
4. according to the described imaging device of claim 2, it is characterized in that: described two empty Adama templates and Adama template 3 are parallel and Width is consistent.
5. according to the arbitrary described imaging device of claim 2～4, it is characterized in that: described lateral shearing interferometer is the Sagnac interferometer, Mach-Zehnder interferometer or polarization birefringent interferometer.
6. according to the described imaging device of claim 5, it is characterized in that: described detector 7 is the receiver of Hadamard transform interference signal, comprises linear array detector and planar array detector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102100691A CN101526400B (en) | 2008-03-06 | 2008-08-21 | Hadamard transform interferometric spectral imaging method and Hadamard transform interferometric spectral imaging equipment |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810017619 | 2008-03-06 | ||
| CN200810017619.8 | 2008-03-06 | ||
| CN2008102100691A CN101526400B (en) | 2008-03-06 | 2008-08-21 | Hadamard transform interferometric spectral imaging method and Hadamard transform interferometric spectral imaging equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101526400A true CN101526400A (en) | 2009-09-09 |
| CN101526400B CN101526400B (en) | 2010-11-03 |
Family
ID=41055529
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008102100691A Expired - Fee Related CN101526400B (en) | 2008-03-06 | 2008-08-21 | Hadamard transform interferometric spectral imaging method and Hadamard transform interferometric spectral imaging equipment |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN101526400B (en) |
| WO (1) | WO2009109078A1 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103063304A (en) * | 2012-12-21 | 2013-04-24 | 南京理工大学 | Chromatic dispersion shear image surface interference hyper spectrum imaging device and method |
| CN103245416A (en) * | 2013-04-19 | 2013-08-14 | 中国科学院长春光学精密机械与物理研究所 | Hadamard-transform near-infrared spectrograph added with light harvesting structure |
| CN103424190A (en) * | 2013-09-02 | 2013-12-04 | 南京理工大学 | Dual-wedge-plate dispersion shearing interference hyperspectral imaging device and method |
| CN104165695A (en) * | 2014-07-30 | 2014-11-26 | 奉化市宇创产品设计有限公司 | Fourier transform imaging spectrometer based on index mirror polarization interference |
| CN104036463B (en) * | 2014-06-13 | 2017-02-01 | 中国科学院光电研究院 | Coding method of coded aperture spectral imager |
| CN107655570A (en) * | 2017-09-12 | 2018-02-02 | 安徽理工大学 | A kind of synchronous mechanically moving template type Hadamard spectrometers |
| CN111272279A (en) * | 2020-02-20 | 2020-06-12 | 中国科学院西安光学精密机械研究所 | Method for adjusting orthogonality of spatial direction and spectral direction of interference type spectral imager |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104165691B (en) * | 2014-06-13 | 2016-05-18 | 中国科学院光电研究院 | A kind of replaceable device with rotating adjusting coding templet |
| CN104236708B (en) * | 2014-09-29 | 2016-08-24 | 中国科学院光电研究院 | A kind of coding templet device |
| KR20170102459A (en) * | 2014-11-06 | 2017-09-11 | 라모트 앳 텔-아비브 유니버시티 리미티드 | Spectral imaging method and system |
| CN110632002A (en) * | 2019-09-30 | 2019-12-31 | 中国科学院西安光学精密机械研究所 | Aperture coding spectrum detection device based on compressed sensing |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5579105A (en) * | 1992-04-17 | 1996-11-26 | British Technology Group Ltd. | Spectrometers |
| CN1039453C (en) * | 1994-06-23 | 1998-08-05 | 武汉大学 | Multifunction Aadamard's transformation micrograph analytical instrument |
| CN1256407A (en) * | 1999-12-28 | 2000-06-14 | 中国科学院西安光学精密机械研究所 | Interference imaging spectral technology and equipment |
| CN1148574C (en) * | 2001-03-08 | 2004-05-05 | 武汉大学 | High resolution Adama conversion micro-image analyzer |
| JP4156977B2 (en) * | 2003-06-04 | 2008-09-24 | オリンパス株式会社 | Microspectroscope |
| CN101241069A (en) * | 2008-03-11 | 2008-08-13 | 武汉大学 | Color dispersion -type multifunctional Hadamard transform microscopical imaging spectrometer |
-
2008
- 2008-08-21 CN CN2008102100691A patent/CN101526400B/en not_active Expired - Fee Related
- 2008-12-30 WO PCT/CN2008/002126 patent/WO2009109078A1/en active Application Filing
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103063304A (en) * | 2012-12-21 | 2013-04-24 | 南京理工大学 | Chromatic dispersion shear image surface interference hyper spectrum imaging device and method |
| CN103063304B (en) * | 2012-12-21 | 2016-01-13 | 南京理工大学 | Image plane interference Hyper spectral Imaging device and method is sheared in dispersion |
| CN103245416A (en) * | 2013-04-19 | 2013-08-14 | 中国科学院长春光学精密机械与物理研究所 | Hadamard-transform near-infrared spectrograph added with light harvesting structure |
| CN103424190A (en) * | 2013-09-02 | 2013-12-04 | 南京理工大学 | Dual-wedge-plate dispersion shearing interference hyperspectral imaging device and method |
| CN103424190B (en) * | 2013-09-02 | 2015-09-30 | 南京理工大学 | Double wedge plate dispersion shear interference Hyper spectral Imaging device and method |
| CN104036463B (en) * | 2014-06-13 | 2017-02-01 | 中国科学院光电研究院 | Coding method of coded aperture spectral imager |
| CN104165695A (en) * | 2014-07-30 | 2014-11-26 | 奉化市宇创产品设计有限公司 | Fourier transform imaging spectrometer based on index mirror polarization interference |
| CN107655570A (en) * | 2017-09-12 | 2018-02-02 | 安徽理工大学 | A kind of synchronous mechanically moving template type Hadamard spectrometers |
| CN107655570B (en) * | 2017-09-12 | 2020-01-10 | 安徽理工大学 | Synchronous mobile mechanical template type Hadamard spectrometer |
| CN111272279A (en) * | 2020-02-20 | 2020-06-12 | 中国科学院西安光学精密机械研究所 | Method for adjusting orthogonality of spatial direction and spectral direction of interference type spectral imager |
| CN111272279B (en) * | 2020-02-20 | 2021-06-22 | 中国科学院西安光学精密机械研究所 | Method for adjusting orthogonality of spatial direction and spectral direction of interference type spectral imager |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2009109078A1 (en) | 2009-09-11 |
| CN101526400B (en) | 2010-11-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101526400B (en) | Hadamard transform interferometric spectral imaging method and Hadamard transform interferometric spectral imaging equipment | |
| CN101806625B (en) | Static Fourier transform interference imaging spectrum full-polarization detector | |
| CN107907483B (en) | Super-resolution spectral imaging system and method based on scattering medium | |
| US10302494B2 (en) | Obtaining spectral information from a moving object | |
| US20200363323A1 (en) | Spectrometer | |
| CA2816726A1 (en) | Image mapped optical coherence tomography | |
| CN111433590B (en) | Spectroscopic analysis device | |
| US20190107730A1 (en) | Imaging system and imaging method | |
| CN110319932A (en) | A kind of high light spectrum image-forming optics system | |
| CN105157835A (en) | Snapshot-type multispectral image multiple-splitting spectral imaging method and spectral imager | |
| JP2021099485A (en) | Polarization spectral filter, polarization spectral filter array, and polarization spectral sensor | |
| US9232130B2 (en) | Multispectral camera using zero-mode channel | |
| CN105548032A (en) | Compact high-resolution wide-view-field spectral imaging system | |
| CN108896183A (en) | Aperture encoded-polarization optical spectrum imaging device | |
| KR101479249B1 (en) | Coherent Structured Illumination Imaging Method And Coherent Structured Illumination Microscope System | |
| CN104913848A (en) | All-Stokes parameter white light double-Sagnac polarization imaging interferometer | |
| CN104931141B (en) | A kind of white light double Sagnac polarization imaging methods of full stokes parameter | |
| CN103558160B (en) | A kind of method and system improving light spectrum image-forming spatial resolution | |
| CN109060761B (en) | High-speed Raman spectrum scanning imaging method and device with three-dimensional high spatial resolution | |
| CN108931298B (en) | Compact high-flux high-stability interference imaging spectrometer | |
| CN107101722A (en) | A kind of broadband linear polarization imaging method based on Mach Zehnder interferometer | |
| CN110307902A (en) | Binary channels interference-type Hyperspectral imaging devices and method | |
| CN201242471Y (en) | Adama transformation interference spectrum imaging apparatus | |
| US20220229213A1 (en) | Diffraction element and imaging device | |
| CN100590403C (en) | Imaging structure and its use method for diffraction optical imaging optical spectrometer with constant lateral magnification |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101103 Termination date: 20130821 |