CN109357762A - A kind of fast illuminated Regional High Resolution optical spectrum imagers - Google Patents
A kind of fast illuminated Regional High Resolution optical spectrum imagers Download PDFInfo
- Publication number
- CN109357762A CN109357762A CN201810886056.XA CN201810886056A CN109357762A CN 109357762 A CN109357762 A CN 109357762A CN 201810886056 A CN201810886056 A CN 201810886056A CN 109357762 A CN109357762 A CN 109357762A
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- optical spectrum
- spectrum imagers
- fast illuminated
- high resolution
- image
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- 230000003287 optical effect Effects 0.000 title claims abstract description 41
- 238000001228 spectrum Methods 0.000 title claims abstract description 24
- 238000003384 imaging method Methods 0.000 claims abstract description 17
- 230000000694 effects Effects 0.000 claims description 6
- 238000001914 filtration Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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
-
- 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
- G01J3/02—Details
- G01J3/0205—Optical elements not provided otherwise, e.g. optical manifolds, diffusers, windows
- G01J3/0208—Optical elements not provided otherwise, e.g. optical manifolds, diffusers, windows using focussing or collimating elements, e.g. lenses or mirrors; performing aberration correction
-
- 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
- G01J3/12—Generating the spectrum; Monochromators
- G01J3/14—Generating the spectrum; Monochromators using refracting elements, e.g. prisms
-
- 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
- G01J3/12—Generating the spectrum; Monochromators
- G01J2003/1208—Prism and grating
Abstract
The invention discloses a kind of optical spectrum imagers of fast illuminated Regional High Resolution, partial enlargement device is used on the basis of original image subdivision optical spectrum imagers, increase by one group of relaying camera lens in imager rear end, thus an intermediary image is generated, utilize an intermediary image, partial enlargement device, i.e. lenticule component are placed here.By mobile lenticule component, realization corresponds to local message high-resolution imaging to each subdivision image, has not only obtained the High-Resolution Map spectrum information of target information, but also saved memory space；Using subregion optical filter, while in the Polaroid scenery that can be obtained under same object scene different wave length of the fast illuminated optical spectrum imagers of different wave length, does not need to resolve from complicated data cube, that is, realize fast illuminated.
Description
Technical field
The invention belongs to the technical fields of optical spectrum imagers, and in particular to a kind of imaging of Regional High Resolution partial enlargement
Spectrometer.
Background technique
In order to solve the problems, such as that fast illuminated optical spectrum imagers spatial resolution is not generally high at this stage, existing fast illuminated light
Imager either divided beams is composed, still divides pixel on the detector, is all that sacrifice spatial resolution realizes multispectral or high
Light spectrum image-forming.Profile information is received using high-resolution detector, resolution ratio can improved to a certain degree, but increase information
The burden of storage.It cannot achieve scan-type imaging spectrometer spectral resolution, the effect that spatial resolution improves simultaneously.
Summary of the invention
In view of this, the present invention provides a kind of optical spectrum imagers of fast illuminated Regional High Resolution, can be realized EO-1 hyperion,
The fast imaging of Regional High Resolution.
A kind of optical spectrum imagers of fast illuminated Regional High Resolution, including at least two Wollaston prisms, focus lamp (4),
Relay camera lens (6), subregion optical filter (7), detector (8) and partial enlargement device (9)；
All Wollaston prisms are sequentially placed along optical path, and the optical axis direction of adjacent Wollaston prism hangs down
Directly；Wollaston prism is based on birefringent effect and is successively divided to incident beam, finally obtains 2nShu Guang；Wherein, n table
Show the quantity of Wollaston prism；
The focus lamp (4) is imaged on Polaroid face (5) the directional light convergence of Wollaston prism beam splitting；
The partial enlargement device (9) includes 2nGroup lenticule component, the Polaroid face after being respectively positioned on focus lamp (4)
(5) on, 2nGroup lenticule group is placed on 2 correspondingly respectivelynThe 2 of beam light generationnThe same field positions of width subdivision image；
Relaying camera lens (6) by Polaroid face (5) as 1:1 is imaged at detector (8)；
The subregion optical filter (7) has 2nThe filtering subregion of a different wave length, for 2nWidth subdivision image is filtered
Wave；
The detector (8) is used to receive the picture on the filtered Polaroid face (5) of sectorized domain optical filter (7).
Preferably, the detector (8) is RGB color CCD.
Preferably, the lenticule component can move on Polaroid face (5).
Preferably, the lenticule component is the achromatism imaging lens that bore is less than 4mm.
The invention has the following beneficial effects:
The present invention uses partial enlargement device on the basis of original image subdivision optical spectrum imagers, increases in imager rear end
Add one group of relaying camera lens, thus generate an intermediary image, using an intermediary image, places partial enlargement device here, i.e., it is micro-
Lens subassembly.By mobile lenticule component, realization corresponds to local message high-resolution imaging to each subdivision image, both obtained
The High-Resolution Map spectrum information of target information, and saved memory space.
The present invention uses subregion optical filter, while can obtain the fast illuminated optical spectrum imagers of different wave length are Polaroid
Scenery under same object scene different wave length, it is not necessary to be resolved from complicated data cube, that is, realize fast illuminated.
Detailed description of the invention
Fig. 1 is the optical spectrum imagers basic structure schematic diagram of fast illuminated Regional High Resolution.
Fig. 2 is tradition Wollaston prismatic decomposition Shu Kuaizhao optical spectrum imagers imaging effect figure.
Fig. 3 is imaging effect figure of the present invention.
Wherein, 1- object, 2-Wollaston prism I, 3-Wollaston prism II, 4- focus lamp, 5- are Polaroid
Face, 6- relay camera lens, the subregion 7- optical filter, 8- detector, 9- partial enlargement device.
Specific embodiment
The present invention will now be described in detail with reference to the accompanying drawings and examples.
As shown in Figure 1, the present invention provides a kind of optical spectrum imagers of fast illuminated Regional High Resolution, including Wollaston
Prism I, Wollaston prism II, focus lamp 4 relay camera lens 6, subregion optical filter 7, detector 8, partial enlargement device 9；
Described Wollaston prism I and Wollaston prism II etc. is big, sequentially places along optical path, and optical axis direction hangs down
Directly；Two Wollaston prisms are based on birefringent effect and light beam are resolved into 4 beam light；
The focus lamp 4 is one group of common imaging lens, and the directional light of two Wollaston prism beam splitting is converged imaging
On Polaroid face 5, focal length 100mm；
The partial enlargement device 9 includes 4 groups of lenticule components, and on the Polaroid face after focus lamp 4, four groups micro-
Lens group is placed on the 4 same field positions of width subdivision image of 4 beam light generation correspondingly respectively, and each lenticule component can be certainly
By shift position, partial enlargement can be carried out to the image of different location.Wherein, lenticule component can be used existing bore and be less than
The achromatism imaging lens of 4mm, to realize that hot spot compresses.
The relaying camera lens 6 is the common relaying camera lens of zoom ratio 1:1, and group focal length is 100mm after preceding group；Will once at
Being imaged at detector 8 as 1:1 in image planes 5；
The subregion optical filter 7, number of partitions are 4, and each region filter wavelength is different, pass through plating different wave length
Film is realized, 4 width subdivision images is made to obtain the profile information of different wave length；The detector 8 is RGB color CCD, for receiving warp
Picture on the filtered Polaroid face 5 of subregion optical filter 7.
The work operational process of this system:
It needs to demarcate subdivision picture position before formal acquisition image, it has been determined that Regional High Resolution partial enlargement device
The relative position of 94 groups of lenticule components.Capture card is imaged in instrument, obtains 4 width images, finds out four width image identical informations
Relative position, label, the reference of 4 groups of lenticule component relative positions as Regional High Resolution partial enlargement device 9 is fixed
Lenticule component relative position.
After calibration, system is operated normally, and object lens pass sequentially through Wollaston at infinite point image objects to 1
3 beam splitting of prism I 2 and II, focus lamp 4 converge at Polaroid face 5, select to need by mobile local amplifying device 9
High-resolution region acquires image after determining position, and by the filtering of subregion optical filter 7, detector 8 obtains four wave bands
Effective profile information of Regional High Resolution；As shown in Fig. 2, for the image on Polaroid face 5；As shown in figure 3, being detector 8
The part of each wave band corresponding region is also exaggerated by the image of acquisition, the profile information for four wave bands of not only having lived.
After the image subdivision of Wollaston prism, it can be obtained 2n(quantity that n is Wollaston prism) width image, when with
When one detector receives subdivision image, the detector pixel that single image occupies only has the 1/2 of entire detector resolutionn,
Device spatial resolution substantially reduces, and makes according to high-resolution detector acquisition image then needing bigger memory space
It is inconvenient to store at information.
The present invention uses partial enlargement device 9 on the basis of original image subdivision optical spectrum imagers, in imager rear end
Increase by one group of relaying camera lens, thus generate an intermediary image 5, using an intermediary image, places partial enlargement device 9 here,
That is lenticule component.By mobile lenticule component, realization corresponds to local message high-resolution imaging to each subdivision image, both obtained
The High-Resolution Map spectrum information of target information was obtained, and has saved memory space.
The present invention uses subregion optical filter 7, while can obtain the fast illuminated optical spectrum imagers of different wave length are Polaroid
Obtain the scenery under same object scene different wave length, it is not necessary to resolve from complicated data cube, that is, realize fast illuminated.
Image subdivision using Wollaston prism is repeatedly to be divided using prism to incident ray, optical system
In design, the imaging system after prism needs to take into account imaging of the separated each light angle of incident ray under multiple visual fields
Quality.Light beam by Wollaston prism group light splitting after obtain multi beam polychromatic light, each polychromatic light from different angles, position
By imaging lens, at this time, need to specially require the field angle of imaging lens.
In conclusion the above is merely preferred embodiments of the present invention, being not intended to limit the scope of the present invention.
All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in of the invention
Within protection scope.
Claims (4)
1. a kind of optical spectrum imagers of fast illuminated Regional High Resolution, which is characterized in that including at least two Wollaston prisms,
Focus lamp (4), relaying camera lens (6), subregion optical filter (7), detector (8) and partial enlargement device (9)；
All Wollaston prisms are sequentially placed along optical path, and the optical axis direction of adjacent Wollaston prism is vertical；
Wollaston prism is based on birefringent effect and is successively divided to incident beam, finally obtains 2nShu Guang；Wherein, n is indicated
The quantity of Wollaston prism；
The focus lamp (4) is imaged on Polaroid face (5) the directional light convergence of Wollaston prism beam splitting；
The partial enlargement device (9) includes 2nGroup lenticule component, on the Polaroid face (5) after being respectively positioned on focus lamp (4),
2nGroup lenticule group is placed on 2 correspondingly respectivelynThe 2 of beam light generationnThe same field positions of width subdivision image；
Relaying camera lens (6) by Polaroid face (5) as 1:1 is imaged at detector (8)；
The subregion optical filter (7) has 2nThe filtering subregion of a different wave length, for 2nWidth subdivision image is filtered；
The detector (8) is used to receive the picture on the filtered Polaroid face (5) of sectorized domain optical filter (7).
2. a kind of optical spectrum imagers of fast illuminated Regional High Resolution as described in claim 1, which is characterized in that the detector
It (8) is RGB color CCD.
3. a kind of optical spectrum imagers of fast illuminated Regional High Resolution as described in claim 1, which is characterized in that the lenticule
Component can move on Polaroid face (5).
4. a kind of optical spectrum imagers of fast illuminated Regional High Resolution as described in claim 1, which is characterized in that the lenticule
Component is the achromatism imaging lens that bore is less than 4mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810886056.XA CN109357762B (en) | 2018-08-06 | 2018-08-06 | Snapshot type local high-resolution spectral imager |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810886056.XA CN109357762B (en) | 2018-08-06 | 2018-08-06 | Snapshot type local high-resolution spectral imager |
Publications (2)
| Publication Number | Publication Date |
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| CN109357762A true CN109357762A (en) | 2019-02-19 |
| CN109357762B CN109357762B (en) | 2021-05-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810886056.XA Active CN109357762B (en) | 2018-08-06 | 2018-08-06 | Snapshot type local high-resolution spectral imager |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110907360A (en) * | 2019-12-19 | 2020-03-24 | 中国科学院长春光学精密机械与物理研究所 | Polarization detection system based on wolflaston prism |
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| CN103234527A (en) * | 2013-04-07 | 2013-08-07 | 南京理工大学 | Multispectral light-field camera |
| CN103822712A (en) * | 2014-03-04 | 2014-05-28 | 中国科学院光电研究院 | Imaging method and imaging spectrometer based on Wollaston prism light splitting |
| CN102466518B (en) * | 2010-11-15 | 2015-11-18 | 中国医药大学 | Micro scanning system and method thereof |
| CN105157835A (en) * | 2015-09-15 | 2015-12-16 | 中国科学院光电研究院 | Snapshot-type multispectral image multiple-splitting spectral imaging method and spectral imager |
| CN107632392A (en) * | 2017-08-22 | 2018-01-26 | 北京理工大学 | Dynamic local amplifies high-resolution imaging system |
| CN107957295A (en) * | 2017-12-27 | 2018-04-24 | 中国科学院西安光学精密机械研究所 | A kind of snapshot-type high-space resolution spectrum imaging system for ocean undersea detection |
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| CN102466518B (en) * | 2010-11-15 | 2015-11-18 | 中国医药大学 | Micro scanning system and method thereof |
| CN103234527A (en) * | 2013-04-07 | 2013-08-07 | 南京理工大学 | Multispectral light-field camera |
| CN103822712A (en) * | 2014-03-04 | 2014-05-28 | 中国科学院光电研究院 | Imaging method and imaging spectrometer based on Wollaston prism light splitting |
| CN105157835A (en) * | 2015-09-15 | 2015-12-16 | 中国科学院光电研究院 | Snapshot-type multispectral image multiple-splitting spectral imaging method and spectral imager |
| CN107632392A (en) * | 2017-08-22 | 2018-01-26 | 北京理工大学 | Dynamic local amplifies high-resolution imaging system |
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| CN110907360A (en) * | 2019-12-19 | 2020-03-24 | 中国科学院长春光学精密机械与物理研究所 | Polarization detection system based on wolflaston prism |
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| CN109357762B (en) | 2021-05-11 |
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