CN106949967A - The fast compact channel modulation type optical field imaging full-polarization spectrum detection device of illuminated and method - Google Patents
The fast compact channel modulation type optical field imaging full-polarization spectrum detection device of illuminated and method Download PDFInfo
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- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
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Abstract
The present invention discloses a kind of compact channel modulation type optical field imaging full-polarization spectrum detection device of fast illuminated and method, and device includes object lens, light field modulating unit, micro optical array, planar array detector and data acquisition process and shows system；Object lens, light field modulating unit, micro optical array and planar array detector are along incident light to setting gradually；Light field modulating unit is placed in the aperture diaphragm position of object lens, and micro optical array is placed in the image planes position of object lens, and planar array detector is placed on the back focal plane of micro optical array, and shows that system is connected with data acquisition process.The device of the present invention is applied to detection dynamic or the fast all-optical information for becoming target, can be effectively prevented from the negative effect that is brought by factors such as object variations, jittering noise or environmental changes, has potential application value in fields such as astronomical observation, space exploration, earth remote sensing, machine vision and biomedical diagnostics.
Description
Technical field
The invention belongs to optical remote sensing field of detecting, more particularly to a kind of polarization spectrum for polarization spectrum radiation detection
Imaging device.
Background technology
The important remote sensing information such as the space containing target, spectrum and polarization, can be used not only in the electromagnetic wave of object radiation
The characteristics such as the form and physical chemistry of inverting target, moreover it is possible to remove ambient noise provide the surface of high-contrast, pattern, shade and
The information such as roughness.To make space, spectrum and polarization three-dimensional information have complementary advantages, the energy of target in enhancing detection complex background
Power, has arisen at the historic moment and has integrated the new forward position remote sensing that three-dimensional information obtains technical ability：Polarization spectrum imaging technology.
Its data product both can be considered the corresponding multidimensional polarization image of each wavelength, be also considered as the corresponding spectrum picture of each polarization state,
To improve target acquisition, identification and classification efficiency and precision there are certain potentiality, military surveillance, earth resource generaI investigation,
Many necks such as environmental health monitoring and surveilliance, natural calamity forecast, Atmospheric Survey, astronomical observation, the bionical, biomedical diagnostic of machine vision
Domain is all by with important application value and prospect.
Polarization spectrum imaging technology is formed by Polarization Modulation module and the fusion of spectrum module, both rear itself work
Feature decides the former characteristic.If dividing in the way of the polarization and spectral information that obtain two-dimensional space target, Polarization Modulation
Module and spectrum module can be divided into sequential keyboard encoder and the major class of fast illuminated two.Currently, most of polarization spectrum imaging technologies are all
The polarization spectrum image of two-dimensional scene is obtained, it is necessary to never using sequence scanning mode (such as Frame projection, push-broom type or window sweep formula)
The multiple image extracting data that obtains in the same time and the polarization spectrum image for recombinating two-dimensional space target.The technology being related to is main
It is to be combined sequential keyboard encoder Polarization Modulation module with fast illuminated spectrum module, or by sequential keyboard encoder Polarization Modulation module and sequential
Formula spectrum module is combined, or fast illuminated Polarization Modulation module is combined with sequential keyboard encoder spectrum module.Timing acquisition
Technology is unsuitable for dynamic or quick variation targets, and the unstability of air or surrounding environment can also influence image quality, in addition it is also necessary to
Accurate space positioning system.
By contrast, fast illuminated Polarization Modulation module is organically blended with fast illuminated spectrum module, can be quickly real
When detect the polarization spectrum image of two-dimensional space target, not only increase operating efficiency, when can also be prevented effectively from multiple measurement because
Environmental change and the influence brought, therefore fast illuminated polarization spectrum imaging technology is the Main way of current and future development, tool
There is important application potential.Current fast illuminated full-polarization spectrum imaging device is mainly based upon integration view field imaging, compression and passed
Sense is imaged or computed tomography technology, not only system complex, in addition it is also necessary to heavy data reconstruction inversion algorithm.
, document in 1996【1】A kind of panchromatic light-field camera is reported, the opticator of system contains a primary mirror,
One micro optical array and a set of secondary imaging optical lens.Wherein, micro optical array can be microlens array or dimension
Array of apertures；If primary mirror aperture stop position carry out optical modulation just can be formed different performance fast illuminated polarization and
Optical spectrum imaging device, therefore light field modulation element and technology are to realize polarization spectrum imaging key point., document in 2005【2】
Propose document【1】In secondary imaging optical lens remove, the panchromatic light field of hand-held is realized merely with primary mirror and lenticule
Image camera, with simple compact advantageous feature., document in 2009【3】Propose in document【2】Primary mirror aperture light in device
Spectral filtering chip arrays and linear polarization filter array arranged side by side are placed at door screen, linear polarization image is obtained and many using microaperture arrays
Spectrum picture；The device can not obtain the information of circularly polarized light, and polarization image is separated with spectrum picture, it is impossible to obtain
The polarization information relevant with wavelength.Then, document【4】Propose document【3】Filter arrays in device change linear gradient into
Spectral filter is to improve spectral resolution., document in 2010【5】Propose document【4】The micropore diameter battle array of device changes into micro-
Lens array is to improve luminous flux, this and document【2】The method used is consistent., document in 2013【6】Propose in document【2】
Linear polarization filter array arranged side by side and linear gradient spectral filter are placed at primary mirror aperture diaphragm in device, separation is obtained
Polarization image and high spectrum image., document in 2012【7】Several groups of different spectral filtering chip arrays are devised to improve spectrum
Resolution ratio, and by document【3】With【4】In microaperture arrays replace with microlens array, to improve luminous flux.
2012, Chinese invention patent " a kind of fast high-throughout spectrum imaging method of illuminated and optical spectrum imagers " (was authorized
Notification number：CN 102944305B)【8】It is also proposed that by document【3】With【4】In microaperture arrays replace with microlens array, use
To improve luminous flux, this and document【5】Method it is consistent., the Chinese invention patent " imaging side of multispectral light-field camera in 2013
Method " (Authorization Notice No.：CN 103234527B)【9】Propose in a kind of Chinese invention patent " fast high-throughout light spectrum image-forming of illuminated
Method and optical spectrum imagers " (Authorization Notice No.：CN 102944305B)【8】Device behind introduce combination relay lens, will be micro-
The back focal plane secondary transferring of optical array is on detector photosurface, in favor of arrangement detector；But this method can increase
The volume of adding system, is unfavorable for miniaturization；And this secondary imaging method and document【1】In the method one of report in 1996
Sample, document【2】Innovation be that removal document【1】Rearmounted secondary imaging optics to realize system compact.2013
A kind of year Chinese invention patent " fast high-throughout polarization imaging method of illuminated and polarization imager " (Authorization Notice No.：CN
103472592B)【10】Propose at primary mirror place four subregions linear polarization filter arrays (0 °, 45 °, 90 °, 135 °), this
The method of kind is similar to document【3】With【6】In spectral filter remove, only realize linear polarization be imaged；Chinese invention in 2015
A kind of patent application " polarization calibrating method of light field polarized imaging system " (application publication number：CN 105300523A)【11】With
A kind of Chinese invention patent application " channel of polarization calibrating method of polarization multi-spectrum imaging system " (application publication number：CN
105890761A)【12】, it was recently reported that one kind is used to calibrate Chinese invention patent a kind of " fast high-throughout polarization imaging method of illuminated
And polarization imager " (Authorization Notice No.：CN 103472592B)【10】The method of reported polarized imaging system.
As can be seen that the fast illuminated polarization of the existing compact based on optical field imaging and optical spectrum imaging device or method, only
Can obtain the information of linearly polarized light, and linearly polarized light image and spectrum picture be separate it is incoherent., Chinese invention in 2012
Patent, " interference optical field imaging high spectrum full polarization detection device " (Authorization Notice No.：CN102680101B)【13】With middle promulgated by the State Council
Bright patent, " synchronous Polarization Modulation interference imaging spectral polarization detecting device and method " (publication number：CN102680101A)【14】,
Propose to receive document using the lateral shear interferometer of imaging type【2】The separation picture point of lenticule back focal plane in device, and
The full polarization modulation element of four subregions, the spectrogram to obtain full Stokes polarization parameters are placed at the aperture diaphragm of primary mirror
Picture；But be due to lateral shear interferometer need scanning target could obtain the corresponding interference pattern of whole optical path differences, therefore two
The device of patent of invention report is required for using timing acquisition mode, it is impossible to realize that fast illuminated is obtained, and system complex, volume
It is larger.
Bibliography
【1】E.H.Adelson and J.Y.A.Wang,“Single lens stereo with a plenoptic
camera,”IEEE Trans.Pattern Anal.Machine Intell.14,99-106(1992).
【2】R.Ng,M.Levoy,M.Bredif,G.Duval,M.Horowitz,and P Hanrahan,“Light
field photography with a handheld plenoptic camera,”Stanford Tech Report CTSR
2005-02(2005).
【3】R.Horstmeyer,G.Euliss,R.Athale,and M.Levoy,“Flexible multimodal
camera using a light field architecture,”International Conference on
Computational Photography(2009).
【4】R.Horstmeyer,R.Athale,G.Euliss,“Modified light field architecture
for reconfigurable multimode imaging,”SPIE Vol.7468,746804(2009).
【5】Z.L.Zhou,Y Yuan,B Xiangli,“Light field imaging spectrometer:
conceptual design and simulated performance,Front.Opt.,FThM3(2010).
【6】B.D.Bartlett,M.D.Rodriguez,“Snapshot Spectral and Polarimetric
Imaging；Target Identification with Multispectral Video,”SPIE Vol.8743,87430R-
1(2013).
【7】K.Berkner,S.A.Shroff,“Design framework for a spectral mask for a
plenoptic camera,”SPIE Vol.8743,87430R-1(2013).
【8】Chinese invention patent, " a kind of fast high-throughout spectrum imaging method of illuminated and optical spectrum imagers ", Granted publication
Number：CN 102944305B.
【9】Chinese invention patent, " imaging method of multispectral light-field camera ", Authorization Notice No.：CN 103234527B.
【10】Chinese invention patent, " a kind of fast high-throughout polarization imaging method of illuminated and polarization imager " authorizes public
Announcement number：CN 103472592B.
【11】Chinese invention patent application, " a kind of polarization calibrating method of light field polarized imaging system ", application publication number：
CN 105300523 A.
【12】Chinese invention patent application, " a kind of channel of polarization calibrating method of polarization multi-spectrum imaging system ", application
Publication number：CN 105890761 A.
【13】Chinese invention patent, " interference optical field imaging high spectrum full polarization detection device ", Authorization Notice No.：
CN102680101B.
【14】Chinese invention patent, " synchronous Polarization Modulation interference imaging spectral polarization detecting device and method " application is open
Number：CN102680101A.
The content of the invention
It is an object of the invention to provide a kind of fast compact channel modulation type optical field imaging full-polarization spectrum detection dress of illuminated
Put and method, the advantage of picture, compressibility size, later data processing simple and fast, it is to avoid heavy are modulated into using light field
Data reconstruction algorithm, reduces the Inversion Calculation time, realizes real-time acquisition and the video of the polarization spectrum radiation of two-dimensional space target
Monitoring.
To achieve these goals, the present invention is adopted the following technical scheme that：
The fast compact channel modulation type optical field imaging full-polarization spectrum detection device of illuminated, including object lens, light field modulating unit,
Micro optical array, planar array detector and data acquisition process show system；Object lens, light field modulating unit, micro optical array and face
Array detector is along incident light to setting gradually；Light field modulating unit is placed in the aperture diaphragm position of object lens, and micro optical array is placed in
The image planes position of object lens, planar array detector is placed on the back focal plane of micro optical array, and shows system phase with data acquisition process
Even；Light field modulating unit includes Polarization Modulation module and spectral filtering chip arrays；Polarization Modulation module is included along incident light direction
The first retardation plate, the second retardation plate and the linear polarizer being sequentially placed.
Further, the quick shaft direction of the first retardation plate and the polarization direction of linear polarizer are consistent；Second retardation plate it is fast
The polarization direction of direction of principal axis and linear polarizer is into 45 degree of angles.
Further, the first retardation plate is identical with the material of the second retardation plate, and thickness is different.
Further, narrow band pass filter of the spectral filtering chip arrays comprising multiple different centre wavelengths or linear gradient filter
Mating plate, spectral modulation is carried out along horizontally and vertically direction.
Further, micro optical array is microlens array, microaperture arrays, low-light fibre array or micro- binary optical battle array
Row.
Further, the first retardation plate, the second retardation plate, linear polarizer and spectral filtering chip arrays, which are close to, successively puts
Put.
The detection method of the compact channel modulation type optical field imaging full-polarization spectrum detection device of fast illuminated, including following step
Suddenly：Any point in two-dimensional space target sends light beam and enters object lens, is polarized by light field modulating unit and spectrum
After modulation, the light beam that all directions carry different polarization and spectral information is formed, then the light beam converges at micro- at object lens image planes
On optical array, then continue to transmit through micro optical array, form the separation for carrying different optical information on focal plane behind
Picture point array, data acquisition process shows that the frame of system control planar array detector snapshot one carries the picture of different polarization and spectral information
Lattice array image, the space pattern of tested two dimension target is obtained by extracting and handling the frame image data, one-dimensional spectrum, complete
The information of the aspect of Stokes polarization parameters three.
Further, in light field modulating unit, light beam carries out the Polarization Modulation of space invariance first, then carries out space
The spectral modulation of gradual change, all emergent rays have different wavelength.
Further, the separation picture point array under the different wave length obtained to planar array detector carries out Fourier transformation twice
Processing, obtains the full Stokes polarization parameters image of target point at that wavelength；Separation picture point battle array corresponding to all target points
Row all do identical processing, obtain the full Stokes polarization parameters spectrum picture of two-dimensional space target.
Further, when linear polarizer polarization direction in the horizontal direction when, the light intensity expression of each emergent ray is：
I (λ)=0.5 (S0+S1cosδ2+S2sinδ1sinδ2-S3cosδ1sinδ2),
When linear polarizer polarization direction vertically when, the light intensity expression of each emergent ray is：
I (λ)=0.5 (S0-S1cosδ2-S2sinδ1sinδ2+S3cosδ1sinδ2),
In formula, λ is wavelength, S0, S1, S2, S3It is four Stokes polarization parameters of target light, δ1It is that the first retardation plate is introduced
Phase delay, δ2It is the phase delay that the second retardation plate is introduced.
The present invention compared with prior art, has the advantages that：
1st, a two field picture of snapshot two-dimensional space target, you can obtain the polarization spectrum information of each target element, retains simultaneously
The spatial information of each target element, temporal resolution is high, it is to avoid the influence brought during multiple measurement by environmental change, two dimension is empty
Between data correlation effectively, high working efficiency.
The 2nd, light field modulating unit is only set at primary mirror aperture location, without rearmounted secondary imaging device, with simple
The superiority of compact.
3rd, data recombination processing is simple lucid and lively, and target can be monitored in real time on a monitor.
The present invention relative to the picture type using timing acquisition pattern, push away the type of sweeping or window sweeps type polarization spectrum imaging device
For, without rotation, tuning or step-scan device and related precision positioning device, with the superior spy obtained real-time
Levy.Relative to the compression sensing or the fast illuminated polarization spectrum imaging device of calculating computed tomography type using a large amount of heavy complicated algorithm for reconstructing
For, with the advantageous feature rebuild real-time.Equivalent to integration visual field spectrum imaging device, with simple compact
Change, the characteristics of space samples density is high.The device of the present invention is applied to detection dynamic or the fast all-optical information for becoming target, can be effective
Ground avoids the negative effect brought by factors such as object variations, jittering noise or environmental changes, is visited in astronomical observation, space
The fields such as survey, earth remote sensing, machine vision and biomedical diagnostic have potential application value.
Brief description of the drawings
Fig. 1 is the structural representation of the compact channel modulation type optical field imaging full-polarization spectrum detection device of the fast illuminated of the present invention
Figure.
Fig. 2 is the light field modulating unit schematic diagram in Fig. 1.
In figure, 1 it is object lens, 2 is light field modulating unit, 3 is micro optical array, 4 is planar array detector, 5 is data acquisition
Display system is handled, 21 be Polarization Modulation module, and 22 be spectral filtering chip arrays, and 211 be the first retardation plate, and 212 prolong for second
Slow plate, 213 be linear polarizer.
Embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings.
Such as Fig. 1, a kind of fast compact channel modulation type optical field imaging full-polarization spectrum detection device of illuminated of the present invention is entered by edge
Light is penetrated to show to the object lens 1 set gradually, light field modulating unit 2, micro optical array 3, planar array detector 4 and data acquisition process
System 5 is constituted；Wherein, light field modulating unit 2 is placed in the aperture diaphragm position of object lens 1, and micro optical array 3 is placed in the picture of object lens 1
Face position, planar array detector 4 is placed on the back focal plane of micro optical array 3, and shows that system 5 is connected with data acquisition process；Light
Field modulating unit 2 includes Polarization Modulation module 21 and spectral filtering chip arrays 22；Polarization Modulation module 21 is included along incident light side
To the first retardation plate 211, the second retardation plate 212 and linear polarizer 213 being sequentially placed；First retardation plate 211 and the second delay
The material of plate 212 is identical, and thickness is different.The quick shaft direction of first retardation plate 211 is consistent with the polarization direction of linear polarizer 213；
The quick shaft direction of second retardation plate 212 and the polarization direction of linear polarizer 213 are into 45 degree of angles；Spectral filtering chip arrays 22 are comprising more
The narrow band pass filter or linear variable filter of individual different centre wavelengths, spectral modulation is carried out along horizontally and vertically direction；
Micro optical array 3 is microlens array or microaperture arrays or low-light fibre array or micro- binary optical array；First prolongs
Slow plate 211, the second retardation plate 212, linear polarizer 213 and spectral filtering chip arrays 22, which are close to, successively to be placed.
Such as Fig. 1, object lens 1 are telephotolens, microcobjective or common object lens.
Such as Fig. 1, micro optical array 3 is microlens array, microaperture arrays, low-light fibre array, micro- binary optical array, and
In the image planes for being placed in object lens 1；
Such as Fig. 1, planar array detector 4 is placed on the back focal plane of micro optical array 3, and shows system 5 with data acquisition process
It is connected；
Such as Fig. 2, the receiving terminal of light field modulating unit 2 is the first retardation plate 211, and spectral filtering chip arrays 22 are placed in thing
On the aperture diaphragm of mirror 1.
Such as Fig. 2, Polarization Modulation module 21 includes the first retardation plate 211, the second retardation plate 212 and linear polarizer 213；
Such as Fig. 2, the quick shaft direction of retardation plate 211 is consistent with linear polarizer 213, the quick shaft direction of the second retardation plate 212 with
Linear polarizer 213 is into 45 degree of angles.
The detection method of the compact channel modulation type optical field imaging full-polarization spectrum detection device of illuminated of the invention fast is：Two dimension
Any point in extraterrestrial target sends light beam into object lens 1, is polarized by light field modulating unit 2 and spectral modulation
Afterwards, the light beam that all directions carry different polarization and spectral information, the micro-optics that then light beam is converged at the image planes of object lens 1 are formed
On array 3, then continue to transmit through micro optical array 3, form the separation picture for carrying different optical information on focal plane behind
Lattice array, data acquisition process shows that the frame of 4 snapshot of the control planar array detector of system 5 one carries the picture of different polarization and spectral information
Lattice array image, can obtain by extracting and handle the frame image data space pattern of tested two dimension target, one-dimensional spectrum,
The information of the full aspect of Stokes polarization parameters three；Wherein by the light beam of light field modulating unit 2 first by Polarization Modulation module 21
The Polarization Modulation of space invariance is carried out, the spectral modulation of spacing gradient, all outgoing are then carried out by spectral filtering chip arrays 22
Light has different wavelength；When linear polarizer 213 polarization direction in the horizontal direction when, the light intensity expression of each emergent ray
For：
I (λ)=0.5 (S0+S1cosδ2+S2sinδ1sinδ2-S3cosδ1sinδ2),
When linear polarizer 213 polarization direction vertically when, the light intensity expression of each emergent ray is：
I (λ)=0.5 (S0-S1cosδ2-S2sinδ1sinδ2+S3cosδ1sinδ2),
In formula, λ is wavelength, S0, S1, S2, S3It is four Stokes polarization parameters of target light, δ1It is the first retardation plate 211
The phase delay of introducing, δ2It is the phase delay that the second retardation plate 212 is introduced；When the polarization direction of linear polarizer 213 is along level
Or during vertical direction, the separation picture point array under the different wave length obtained to planar array detector 4 carries out Fourier transformation twice
Processing, you can obtain the full Stokes polarization parameters image of target point at that wavelength；Separation picture corresponding to all target points
Lattice array all does identical processing, you can obtain the full Stokes polarization parameters spectrum picture of two-dimensional space target.
Claims (10)
1. the fast compact channel modulation type optical field imaging full-polarization spectrum detection device of illuminated, it is characterised in that including object lens (1),
Light field modulating unit (2), micro optical array (3), planar array detector (4) and data acquisition process show system (5)；
Object lens (1), light field modulating unit (2), micro optical array (3) and planar array detector (4) are along incident light to setting gradually；
Light field modulating unit (2) is placed in the aperture diaphragm position of object lens (1), and micro optical array (3) is placed in the image planes position of object lens (1)
Put, planar array detector (4) is placed on the back focal plane of micro optical array (3), and show that system (5) is connected with data acquisition process；
Light field modulating unit (2) includes Polarization Modulation module (21) and spectral filtering chip arrays (22)；Polarization Modulation module is included
The first retardation plate (211), the second retardation plate (212) and the linear polarizer (213) being sequentially placed along incident light direction.
2. the compact channel modulation type optical field imaging full-polarization spectrum detection device of fast illuminated according to claim 1, it is special
Levy and be, the quick shaft direction of the first retardation plate (211) is consistent with the polarization direction of linear polarizer (213)；Second retardation plate (212)
Quick shaft direction and linear polarizer (213) polarization direction into 45 degree of angles.
3. the compact channel modulation type optical field imaging full-polarization spectrum detection device of fast illuminated according to claim 1, it is special
Levy and be, the first retardation plate (211) is identical with the material of the second retardation plate (212), thickness is different.
4. the compact channel modulation type optical field imaging full-polarization spectrum detection device of fast illuminated according to claim 1, it is special
Levy and be, spectral filtering chip arrays (22) include the narrow band pass filter or linear variable filter of multiple different centre wavelengths,
Spectral modulation is carried out along horizontally and vertically direction.
5. the compact channel modulation type optical field imaging full-polarization spectrum detection device of fast illuminated according to claim 1, it is special
Levy and be, micro optical array (3) is microlens array, microaperture arrays, low-light fibre array or micro- binary optical array..
6. the compact channel modulation type optical field imaging full-polarization spectrum detection device of fast illuminated according to claim 1, it is special
Levy and be, the first retardation plate (211), the second retardation plate (212), linear polarizer (213) and spectral filtering chip arrays (22) are tight
Placed close to priority.
7. the compact channel modulation type optical field imaging full-polarization spectrum detection dress of fast illuminated any one of claim 1 to 6
The detection method put, it is characterised in that comprise the following steps：Any point in two-dimensional space target sends light beam and enters thing
Mirror (1), polarization is carried out with after spectral modulation, forming all directions carrying different polarization and spectrum letter by light field modulating unit (2)
The light beam of breath, then the light beam converge on the micro optical array at object lens image planes (3), then through micro optical array (3) after
Resume defeated, form the separation picture point array for carrying different optical information on focal plane behind, data acquisition process shows system (5)
The frame of planar array detector (4) snapshot one is controlled to carry the picture point array image of different polarization and spectral information, by extracting and handling
The frame image data obtains the space pattern, one-dimensional spectrum, the information of the aspect of full Stokes polarization parameters three of tested two dimension target.
8. the detection method described in claim 7, it is characterised in that in light field modulating unit (2), light beam carries out space first
Constant Polarization Modulation, then carries out the spectral modulation of spacing gradient, and all emergent rays have different wavelength.
9. the detection method described in claim 7, it is characterised in that the separation picture under the different wave length obtained to planar array detector
Lattice array carries out Fourier transformation twice and handled, and obtains the full Stokes polarization parameters image of target point at that wavelength；To institute
There is the corresponding separation picture point array of target point all to do identical processing, obtain the full Stokes polarization parameters light of two-dimensional space target
Spectrogram picture.
10. the detection method described in claim 7, it is characterised in that when linear polarizer polarization direction in the horizontal direction when, respectively
The light intensity expression of emergent ray is：
I (λ)=0.5 (S0+S1cosδ2+S2sinδ1sinδ2-S3cosδ1sinδ2),
When linear polarizer polarization direction vertically when, the light intensity expression of each emergent ray is：
I (λ)=0.5 (S0-S1cosδ2-S2sinδ1sinδ2+S3cosδ1sinδ2),
In formula, λ is wavelength, S0, S1, S2, S3It is four Stokes polarization parameters of target light, δ1It is the phase that the first retardation plate is introduced
Position delay, δ2It is the phase delay that the second retardation plate is introduced.
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| CN201710098326.6A CN106949967B (en) | 2017-02-22 | 2017-02-22 | The fast compact channel modulation type optical field imaging full-polarization spectrum detection device of illuminated and method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109655160A (en) * | 2018-03-05 | 2019-04-19 | 曹毓 | A kind of extension target divides visual field polarization measurement system and method in real time |
| WO2020200330A3 (en) * | 2019-03-29 | 2020-11-19 | 清华-伯克利深圳学院筹备办公室 | Polarization imaging method, device thereof, and polarization imaging system |
| CN113466179A (en) * | 2021-06-22 | 2021-10-01 | 杭州谱析光晶半导体科技有限公司 | Optical detection system and method |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1846114A (en) * | 2003-07-18 | 2006-10-11 | 凯米映像公司 | Method and apparatus for multiwavelength imaging spectrometer |
| US20080049221A1 (en) * | 2002-09-04 | 2008-02-28 | Ralf Wolleschensky | Method and arrangement for changing the spectral composition and/or intensity of illumination light and/or specimen light in an adjustable manner |
| CN101464190A (en) * | 2009-01-14 | 2009-06-24 | 北京航空航天大学 | Varifocal full-polarization spectrum imaging detection system |
| CN102135450A (en) * | 2010-01-21 | 2011-07-27 | 中国科学院西安光学精密机械研究所 | Liquid crystal tunable filter based static full stokes imaging spectropolarimeter |
| CN102692274A (en) * | 2012-05-28 | 2012-09-26 | 中国科学院上海光学精密机械研究所 | Light beam stokes parameter measuring device and measuring method |
| CN103063303A (en) * | 2012-12-21 | 2013-04-24 | 南京理工大学 | Spectrum polarization detection device and method for synchronous polarization modulation interference imaging |
| CN103592030A (en) * | 2013-10-24 | 2014-02-19 | 西安交通大学 | Snapshot integral view field imaging full-polarization hyperspectral detection device |
| US20140098309A1 (en) * | 2011-04-14 | 2014-04-10 | Chemlmage Corporation | Short-Wavelength Infrared (SWIR) Multi-Conjugate Liquid Crystal Tunable Filter |
| CN104535190A (en) * | 2014-12-31 | 2015-04-22 | 中国人民解放军63655部队 | Corner shearing type spatial frequency modulation full-polarization imaging detecting device |
| CN104792417A (en) * | 2015-04-10 | 2015-07-22 | 中国科学院光电研究院 | Portable compact complete-polarization high-spectral imaging unit |
| CN104833977A (en) * | 2015-05-11 | 2015-08-12 | 福州大学 | Instantaneous remote-sensing polarization imaging device based on microwave plate array and realizing method thereof |
-
2017
- 2017-02-22 CN CN201710098326.6A patent/CN106949967B/en not_active Expired - Fee Related
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080049221A1 (en) * | 2002-09-04 | 2008-02-28 | Ralf Wolleschensky | Method and arrangement for changing the spectral composition and/or intensity of illumination light and/or specimen light in an adjustable manner |
| CN1846114A (en) * | 2003-07-18 | 2006-10-11 | 凯米映像公司 | Method and apparatus for multiwavelength imaging spectrometer |
| CN101464190A (en) * | 2009-01-14 | 2009-06-24 | 北京航空航天大学 | Varifocal full-polarization spectrum imaging detection system |
| CN102135450A (en) * | 2010-01-21 | 2011-07-27 | 中国科学院西安光学精密机械研究所 | Liquid crystal tunable filter based static full stokes imaging spectropolarimeter |
| US20140098309A1 (en) * | 2011-04-14 | 2014-04-10 | Chemlmage Corporation | Short-Wavelength Infrared (SWIR) Multi-Conjugate Liquid Crystal Tunable Filter |
| CN102692274A (en) * | 2012-05-28 | 2012-09-26 | 中国科学院上海光学精密机械研究所 | Light beam stokes parameter measuring device and measuring method |
| CN103063303A (en) * | 2012-12-21 | 2013-04-24 | 南京理工大学 | Spectrum polarization detection device and method for synchronous polarization modulation interference imaging |
| CN103592030A (en) * | 2013-10-24 | 2014-02-19 | 西安交通大学 | Snapshot integral view field imaging full-polarization hyperspectral detection device |
| CN104535190A (en) * | 2014-12-31 | 2015-04-22 | 中国人民解放军63655部队 | Corner shearing type spatial frequency modulation full-polarization imaging detecting device |
| CN104792417A (en) * | 2015-04-10 | 2015-07-22 | 中国科学院光电研究院 | Portable compact complete-polarization high-spectral imaging unit |
| CN104833977A (en) * | 2015-05-11 | 2015-08-12 | 福州大学 | Instantaneous remote-sensing polarization imaging device based on microwave plate array and realizing method thereof |
Non-Patent Citations (2)
| Title |
|---|
| ROARKE HORSTMEYER, ET AL: "Modified light field architecture for reconfigurable multimode imaging", 《PROCEEDINGS OF SPIE》 * |
| TINGKUI MU, ET AL: "Error analysis of single-snapshot full-Stokes division-of-aperture imaging polarimeters", 《ERROR ANALYSIS OF SINGLE-SNAPSHOT FULL-STOKES DIVISION-OF-APERTURE IMAGING POLARIMETERS》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109655160A (en) * | 2018-03-05 | 2019-04-19 | 曹毓 | A kind of extension target divides visual field polarization measurement system and method in real time |
| WO2020200330A3 (en) * | 2019-03-29 | 2020-11-19 | 清华-伯克利深圳学院筹备办公室 | Polarization imaging method, device thereof, and polarization imaging system |
| CN113466179A (en) * | 2021-06-22 | 2021-10-01 | 杭州谱析光晶半导体科技有限公司 | Optical detection system and method |
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