CN107402071A - Device for realizing scene imaging and multispectral measurement - Google Patents
Device for realizing scene imaging and multispectral measurement Download PDFInfo
- Publication number
- CN107402071A CN107402071A CN201710693970.8A CN201710693970A CN107402071A CN 107402071 A CN107402071 A CN 107402071A CN 201710693970 A CN201710693970 A CN 201710693970A CN 107402071 A CN107402071 A CN 107402071A
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- China
- Prior art keywords
- imaging
- lenticule
- detector
- optical spectrum
- spectrum measurement
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Links
- 238000003384 imaging method Methods 0.000 title claims abstract description 113
- 238000005259 measurement Methods 0.000 title claims abstract description 15
- 230000003287 optical effect Effects 0.000 claims abstract description 31
- 238000001228 spectrum Methods 0.000 claims abstract description 27
- 239000005357 flat glass Substances 0.000 claims abstract description 14
- 210000001747 pupil Anatomy 0.000 claims abstract description 6
- 238000003491 array Methods 0.000 claims description 14
- 230000003595 spectral effect Effects 0.000 abstract description 9
- 238000001514 detection method Methods 0.000 description 5
- 230000008859 change Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000000701 chemical imaging Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004611 spectroscopical analysis Methods 0.000 description 1
- 238000000411 transmission spectrum Methods 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
- G01J3/02—Details
- G01J3/0205—Optical elements not provided otherwise, e.g. optical manifolds, diffusers, windows
- G01J3/0237—Adjustable, e.g. focussing
-
- 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
- G01J2003/2826—Multispectral imaging, e.g. filter imaging
Landscapes
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- General Physics & Mathematics (AREA)
- Spectrometry And Color Measurement (AREA)
Abstract
The device comprises an optical filter array, an imaging lens with adjustable focal length, flat glass with a central position bonded with a micro lens and an imaging detector in sequence along the direction of a light path, wherein the optical filter array is placed at the entrance pupil of the device, and the imaging detector is positioned on the focal plane of the micro lens. The device for realizing scene imaging and target spectrum measurement has a simple structure, and spectral information of an interested target and image information of surrounding scenery can be directly obtained by focusing the imaging lens.
Description
Technical field
The invention belongs to optical field, is related to a kind of device realized scene imaging and measured with target optical spectrum, more particularly to
It is a kind of to realize the detection device for obtaining scene image and spectrum respectively by focusing.
Background technology
Spectral technique has a wide range of applications in optical remote sensing field, and spectrum imaging system can not only obtain the figure of target
As information, and it can obtain and disclose its essential spectral information.But traditional multispectral survey device is all in general camera
Interferometer, grating, optical filter etc. are added in light path and divides colour cell part, to obtain the multispectral information of target, it is necessary to which multiexposure, multiple exposure is swept
Retouching to complete.And while whole scene image information is obtained, acquisition be whole scenery spectral information, it is impossible to it is right
A certain interesting target is studied, and need to carry out extraction process to the spectroscopic data of the whole scenery of acquisition.
A certain mesh interested can also only be obtained while surrounding scenes image information is obtained by needing one kind badly in the prior art
Mark spectrum and the spectral imaging technology that target optical spectrum information can be obtained without scanning.
The content of the invention
Can not be only while surrounding scenes image information is obtained in order to solve transmission spectra imaging system in background technology
The technical problem of target optical spectrum information etc. could be obtained by obtaining the deficiency of a certain interesting target spectrum and scanning, and the present invention provides
It is a kind of only to pass through focusing, so that it may to directly obtain the spectral information and surrounding scenes image informations, applicable model of interesting target
Wide and easy to operation imaging and multispectral parallel detecting device are enclosed, i.e., realizes that target scene blur-free imaging and sense are emerging by focusing
The detection device of the interesting multispectral acquisition of information of target point.
Specifically, in order to realize the goal of the invention of the present invention, there is provided a kind of to realize scene imaging and target optical spectrum measurement
Device, the device are bonded lenticule including filter arrays, the imaging lens of focus adjustable, center successively along optical path direction
Plate glass and imaging detector, the filter arrays are positioned at the entrance pupil of described device, the imaging detector position
In on the focal plane of lenticule.
Further, the focusing range of the imaging lens is more than or equal to the lenticule front end face to the imaging detector light
Quick distance.
Further, the focal plane of the imaging lens can be in lenticule institute in the plane, or can be visited in imaging
Survey in device plane.
Further, the F numbers of imaging lens are less than 4.
Further, the plate glass of the center bonding lenticule is binded on the imaging detector, and institute
State the center that lenticule is located at the imaging detector, centre bit of the lenticule optical axis in the imaging detector
Put.
Further, the filter arrays are gradual filter array, are arranged at the imaging lens aperture diaphragm.
Further, one or more lenticules are set, the lenticule cover the size of the imaging detector with no more than
The 2/3 of imaging detector target surface, single lenslet diameter are less than the 1/2 of imaging detector target surface.
Further, lenticule F numbers are more than the F numbers of imaging lens.
Further, lenticule is more than or equal to imaging detection with aspherical mirror or GRIN Lens, the back work distance of lenticule
Distance of the device window glass to imaging detector photosurface.
Further, the pixel dimension of imaging detector is less than light by the filter arrays, imaging lens, lenticule micro-
The 1/30 of imaging size on the focal plane of lens.
The invention has the advantages that：
1. realizing scene imaging and the device of target optical spectrum measurement using the present invention, target scape can be obtained by focusing
The picture rich in detail of thing and the spectral information of interesting target, determine the target location of measure spectrum；
2. by setting gradual filter array, EO-1 hyperion can be achieved；
3. filter arrays are readily replaceable, so as to realize channel change；
4. the present apparatus realize it is simple, easy to carry, using simple, it is time saving and energy saving.
Brief description of the drawings
Fig. 1 shows that the structure of the device realized scene imaging and measured with target optical spectrum of the specific embodiment of the invention is shown
It is intended to.
Embodiment
The present invention is described in detail with reference to embodiment with reference to the accompanying drawings.
Fig. 1 shows that the structure of the device realized scene imaging and measured with target optical spectrum of the specific embodiment of the invention is shown
It is intended to.
As shown in figure 1, the device for realizing scene imaging and multispectral survey in the specific embodiment of the invention is along its light
Road direction includes filter arrays 1, the preset lens (imaging lens) 2 of focus adjustable, center bonding lenticule 5 (in Fig. 1
Entreat part) plate glass 3 and imaging detector 4；The filter arrays 1 are positioned at system entrance pupil；The imaging lens 2
The front end face (left side in Fig. 1) that focusing range is more than or equal to the lenticule 5 arrives the photosensitive distance of the imaging detector 4；
The plate glass 3 of described center bonding lenticule 5 ensures that Jiao of the lenticule 5 puts down before being placed in the detector 4
Face falls on the imaging detector 4, and the optical axis of lenticule 5 is in the center of the imaging detector 4, the imaging detection
Device 4 is located on the focal plane of lenticule 5.
In the present invention, the filter arrays 1 are arranged at the aperture diaphragm (not shown) of the imaging lens 2,
It is preferably located on before the eyeglass of imaging lens 2 and on easy-to-dismount position.
The focusing range of the imaging lens 2 be more than or equal to the lenticule 5 front end face (left side in Fig. 1) to it is described into
As the photosensitive distance of detector 4.When the focal plane of imaging lens 2 is adjusted to the institute of lenticule 5 in the plane, equipment is in
Spectrum state is surveyed, is image formation state when the focal plane of imaging lens 2 is adjusted in the plane of imaging detector 4.The F of imaging lens
Number should not be too big, and preferably less than 4.
The plate glass 3 of the center bonding lenticule 5 is binded on the imaging detector 4, the flat board glass
The size of glass 3 is more than the clear aperture of the riding position of lenticule 5, and the riding position of lenticule 5 ensures the focal plane of lenticule 5
Fall on the imaging detector 4, to be used as the window glass of imaging detector 4；1 or more can be set on plate glass 3
Individual lenticule 5, cover the size of the imaging detector 4 preferably no more than imaging detector target surface size 2/3, it is single
The diameter of lenticule 5 is preferably less than the 1/2 of the target surface size of the imaging detector 4；The F numbers of lenticule 5 are more than imaging lens
F numbers, it is preferred that the F numbers of lenticule 5 be equal to imaging lens 2 times of F numbers；Lenticule 5 is using aspherical mirror or GRIN Lens as most
It is good；The back work distance of lenticule 5 is more than or equal to the window glass of imaging detector 4 to the photosurface of imaging detector 4
Distance.
The imaging detector 4 is arranged on the focal plane of lenticule 5, and the pixel dimension of imaging detector 4 passes through less than light
Cross the filter arrays 1, imaging lens 2, lenticule 5 on the focal plane of lenticule 5 imaging size 1/30.
According to the present invention, due to setting the filter arrays 1 at the entrance pupil of the imaging lens 2, visited in the imaging
The plate glass 3 of lenticule 5 is provided with before survey device 4, so that the focal plane of lenticule 5 falls in the imaging detection
On device 4.By being focused to imaging lens 2, when the focal plane of the imaging lens 2 falls when on the imaging detector 4, equivalent to general
Logical imaging device, due to converging action of the lenticule 5 to light more than the center of the imaging detector 4, so institute
Obtained image be center it is fuzzy, around clearly scene image；Fall when making the focal plane of the imaging lens 2 in lenticule
When on 5, the imaging detector 4 is in out-of-focus appearance, not by the light of lenticule 5 on imaging detector 4 into vague image,
By the light of lenticule 5, due to the filter action of optical filter at entrance pupil, its spectral information is have recorded on imaging detector 4,
Center is target optical spectrum on the imaging detector 4, is around blurred picture.
The specific embodiment of the invention is related to above realizes that scene imaging and the device of target optical spectrum measurement are carried out
Illustrate, using the device, can realize that scene imaging measures with target optical spectrum, pass through focusing, you can directly obtain mesh interested
Target spectral information and surrounding scenes image information, applied widely and imaging easy to operation and multispectral parallel detecting, i.e.,
The acquisition of target scene blur-free imaging and the multispectral information of interesting target point can be achieved by focusing.In other words, week is being obtained
A certain interesting target spectral information etc. is also obtained while enclosing scene image information.
To sum up, detailed description has been made to the present invention according to the embodiment of the present invention, however, art technology
Personnel can make in the category for not departing from present inventive concept and spirit to the present invention it should be understood that the description is exemplary
Go out various modifications and change, these modifications and change should also be as falling among protection scope of the present invention, protection model of the invention
Enclose and be defined by the appended claims.
Claims (10)
1. a kind of realize scene imaging and the device of target optical spectrum measurement, it is characterised in that the device wraps successively along optical path direction
Filter arrays, the imaging lens of focus adjustable, the plate glass and imaging detector of center bonding lenticule are included,
The filter arrays are positioned at the entrance pupil of described device, and the imaging detector is located on the focal plane of lenticule.
2. scene imaging and the device of target optical spectrum measurement are realized as described in above-mentioned claim 1, it is characterised in that the imaging
The focusing range of mirror is more than or equal to the lenticule front end face to the photosensitive distance of the imaging detector.
3. scene imaging and the device of target optical spectrum measurement are realized as described in above-mentioned claim 2, it is characterised in that the imaging
The focal plane of mirror can be in lenticule institute in the plane, or can be in imaging detector plane.
4. scene imaging and the device of target optical spectrum measurement are realized as described in above-mentioned claim 3, it is characterised in that imaging lens
F numbers are less than 4.
5. scene imaging and the device of target optical spectrum measurement are realized as described in one of above-mentioned claim 1-4, it is characterised in that institute
State center bonding lenticule plate glass bind on the imaging detector, and the lenticule positioned at it is described into
As the center of detector, the lenticule optical axis is in the center of the imaging detector.
6. scene imaging and the device of target optical spectrum measurement are realized as described in one of above-mentioned claim 1-4, it is characterised in that institute
It is gradual filter array to state filter arrays, is arranged at the imaging lens aperture diaphragm.
7. scene imaging and the device of target optical spectrum measurement are realized as described in one of above-mentioned claim 1-4, it is characterised in that set
One or more lenticules are put, the lenticule covers the size of the imaging detector with no more than imaging detector target surface
2/3, single lenslet diameter is less than the 1/2 of imaging detector target surface.
8. scene imaging and the device of target optical spectrum measurement are realized as described in one of above-mentioned claim 1-4, it is characterised in that micro-
Lens F numbers are more than the F numbers of imaging lens.
9. scene imaging and the device of target optical spectrum measurement are realized as described in one of above-mentioned claim 1-4, it is characterised in that micro-
Lens are more than or equal to imaging detector window glass and visited to imaging with aspherical mirror or GRIN Lens, the back work distance of lenticule
Survey the distance of device photosurface.
10. scene imaging and the device of target optical spectrum measurement are realized as described in one of above-mentioned claim 1-4, it is characterised in that
The pixel dimension of imaging detector is less than light and passes through the filter arrays, imaging lens, lenticule on the focal plane of lenticule
The 1/30 of imaging size.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710693970.8A CN107402071B (en) | 2017-08-14 | 2017-08-14 | Device for realizing scene imaging and multispectral measurement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710693970.8A CN107402071B (en) | 2017-08-14 | 2017-08-14 | Device for realizing scene imaging and multispectral measurement |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107402071A true CN107402071A (en) | 2017-11-28 |
| CN107402071B CN107402071B (en) | 2019-04-09 |
Family
ID=60397117
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710693970.8A Active CN107402071B (en) | 2017-08-14 | 2017-08-14 | Device for realizing scene imaging and multispectral measurement |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111220070A (en) * | 2018-11-26 | 2020-06-02 | 中国科学院长春光学精密机械与物理研究所 | Method for acquiring scattered spots of star point image |
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| EP2869046A1 (en) * | 2013-10-31 | 2015-05-06 | Thales | Spectrometer with large telecentric field, in particular with a mems matrix |
| CN106066207A (en) * | 2016-05-19 | 2016-11-02 | 北京航空航天大学 | A kind of parallel light path combination type multi-source information acquiring processing means and method |
| CN207147631U (en) * | 2017-08-14 | 2018-03-27 | 中国科学院地理科学与资源研究所 | Device for realizing scene imaging and target spectrum measurement |
-
2017
- 2017-08-14 CN CN201710693970.8A patent/CN107402071B/en active Active
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| CN102472664A (en) * | 2009-08-11 | 2012-05-23 | 皇家飞利浦电子股份有限公司 | Multi-spectral imaging |
| EP2869046A1 (en) * | 2013-10-31 | 2015-05-06 | Thales | Spectrometer with large telecentric field, in particular with a mems matrix |
| CN104535186A (en) * | 2014-12-30 | 2015-04-22 | 华中科技大学 | Infrared spectrogram correlation detection system and method for mobile platform |
| CN106066207A (en) * | 2016-05-19 | 2016-11-02 | 北京航空航天大学 | A kind of parallel light path combination type multi-source information acquiring processing means and method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111220070A (en) * | 2018-11-26 | 2020-06-02 | 中国科学院长春光学精密机械与物理研究所 | Method for acquiring scattered spots of star point image |
| CN111220070B (en) * | 2018-11-26 | 2022-12-20 | 中国科学院长春光学精密机械与物理研究所 | Method for acquiring scattered spots of star point image |
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| Publication number | Publication date |
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| CN107402071B (en) | 2019-04-09 |
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