CN106197666A - Miniaturization non refrigerating infrared imaging spectrogrph and method - Google Patents
Miniaturization non refrigerating infrared imaging spectrogrph and method Download PDFInfo
- Publication number
- CN106197666A CN106197666A CN201610482396.7A CN201610482396A CN106197666A CN 106197666 A CN106197666 A CN 106197666A CN 201610482396 A CN201610482396 A CN 201610482396A CN 106197666 A CN106197666 A CN 106197666A
- Authority
- CN
- China
- Prior art keywords
- image
- interference
- spectrogrph
- infrared imaging
- interferometer
- 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
- 238000003331 infrared imaging Methods 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000012545 processing Methods 0.000 claims abstract description 12
- 238000001228 spectrum Methods 0.000 claims abstract description 12
- 239000000523 sample Substances 0.000 claims abstract description 8
- 230000003287 optical effect Effects 0.000 claims abstract description 6
- 230000005855 radiation Effects 0.000 claims description 12
- 238000010408 sweeping Methods 0.000 claims description 7
- 230000008859 change Effects 0.000 claims description 6
- 230000003595 spectral effect Effects 0.000 claims description 6
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000003384 imaging method Methods 0.000 claims description 3
- 238000003786 synthesis reaction Methods 0.000 claims description 3
- 238000001514 detection method Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 238000002329 infrared spectrum Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000001931 thermography Methods 0.000 description 1
- 230000009466 transformation 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
Landscapes
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- General Physics & Mathematics (AREA)
- Spectrometry And Color Measurement (AREA)
Abstract
The present invention proposes a kind of miniaturization non refrigerating infrared imaging spectrogrph and method, wherein spectrogrph includes installing successively along optical axis direction: scanning reflection mirror, objective lens, slit diaphragm, collimator objective group, interferometer, relay lens and image-forming assembly, this spectrogrph also includes non-refrigerated infrared focal plane probe and interference illustration processing module, non-refrigerated infrared focal plane probe is placed between relay lens and image-forming assembly, interference illustration processing module receives the interference image signal that image-forming assembly sends, interference image signal is carried out the reconstruct of pretreatment and interference image, and output spectrum image；Interferometer includes thin prism and the plane mirror contacted with each other, and wherein the upper surface of thin prism is zigzag, has at least two spike, a slit alignment in each spike and slit diaphragm.
Description
Technical field
The present invention relates to infrared spectrum technical field of imaging, particularly relate to a kind of miniaturization non refrigerating infrared imaging spectrogrph
And method.
Background technology
Infrared Imaging Spectrometer can provide scene image information and spectral information simultaneously, thus analyses in depth scene objects
Composition and characteristic are a kind of important observation, analyze and detection equipment.At present, Infrared Imaging Spectrometer Stealthy Target scout,
The fields such as hazardous gas detection, environmental pollution monitoring, resource exploration, maritime search and rescue are widely applied, and the most progressively become light
The growing market that Electrical imaging field is important.
Comparing common thermal infrared imager, Infrared Imaging Spectrometer adds light splitting part (interferometer, filtering device or color
Dissipate device etc.), this also causes its volume and weight to be significantly increased, and limits its range of application.Especially in LONG WAVE INFRARED scope,
The resolution of filtering device and Dispersive Devices is relatively low, and signal energy decay is serious；And time of based on Michelson's interferometer
It is relatively big that modulation light splitting technology there is also volume weight, problem with high costs.By contrast, interferometer is a kind of spatial modulation type
Light splitting part, is providing while preferable spectral resolution, and volume and weight is also available effectively to be controlled, be currently realize little
Type, the possible technique route of EO-1 hyperion LONG WAVE INFRARED imaging spectrometer.
Summary of the invention
The technical problem to be solved in the present invention is for bigger the lacking of prior art mid-infrared thermal imaging system volume and weight
Fall into, it is provided that a kind of miniaturization non refrigerating infrared imaging spectrogrph and method.
The technical solution adopted for the present invention to solve the technical problems is:
There is provided a kind of miniaturization non refrigerating infrared imaging spectrogrph, including install successively along optical axis direction: scanning is anti-
Penetrating mirror, objective lens, slit diaphragm, collimator objective group, interferometer, relay lens and image-forming assembly, this spectrogrph also includes non-brake method
Infrared focal plane detector and interference illustration processing module, non-refrigerated infrared focal plane probe is placed in relay lens and image-forming assembly
Between, interference illustration processing module receives the interference image signal that image-forming assembly sends, and interference image signal is carried out pretreatment
With the reconstruct of interference image, and output spectrum image；
Interferometer includes thin prism and the plane mirror contacted with each other, and wherein the upper surface of thin prism is zigzag, have to
Few two spikes, a slit alignment in each spike and slit diaphragm.
In miniaturization non refrigerating infrared imaging spectrogrph of the present invention, the inclination angle of thin prism is 32mrad.
Present invention also offers a kind of miniaturization non refrigerating infrared imaging spectrogrph and obtain the side of infrared imaging spectrum picture
Method, the method specifically includes following steps:
(1) infra-red radiation of scene focuses on back focal plane through objective lens；
(2) scanning reflection mirror carries out sweeping in the direction being perpendicular to slit diaphragm, often turns over certain angle, and non-brake method is red
Outer focus planardetector gathers a view data；
(3) slit diaphragm is as field stop, gates the light focusing on its surface so that just through a line
The light of visual field, the light of other position is then blocked；
(4) collimator objective group will transmit through the light of slit diaphragm and collimates so that it is parallel radiation is on interferometer；
(5) the midfeather thickness of the thin prism in interferometer is change, then can produce along being perpendicular in slit diaphragm
The interference image of slit direction bit period change, this radiation signal is relevant to wavelength, can be reverted to by fast Fourier transform
Spectral radiance signal；
(6) when scanning reflection mirror is from one end sweeping to the other end, it is thus achieved that the infrared spectral radiant letter of whole observation scene
Number, these signals are processed by image-forming assembly and interference illustration processing module, export EO-1 hyperion digital picture and stand after synthesis
Side.
The beneficial effect comprise that: the present invention uses the interferometer structure of special sawtooth pattern to obtain different linear field
Gather while the interferogram in region so that the acquisition rate of spectrum picture is promoted, the body of system can also be reduced simultaneously
Long-pending so that system structure is compacter.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing:
Fig. 1 is embodiment of the present invention Infrared Imaging Spectrometer composition frame chart；
Fig. 2 is embodiment of the present invention interferometer schematic diagram.
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, right
The present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, not
For limiting the present invention.
As it is shown in figure 1, the miniaturization non refrigerating infrared imaging spectrogrph of the embodiment of the present invention comprises scanning reflection mirror 1, thing
Mirror group 2, slit diaphragm 3, collimator objective group 4, interferometer 5, relay lens 6, non-refrigerated infrared focal plane probe 8, image-forming assembly 7
With parts such as interference illustration processing modules 9.Direction along optical axis is installed successively: scanning reflection mirror 1, objective lens 2, slit diaphragm
3, collimator objective group 4, interferometer 5, relay lens 6, non-refrigerated infrared focal plane probe 8.The function of each assembly is as described below:
Scanning reflection mirror 1: be scanned in the direction being perpendicular to slit diaphragm 3, it is achieved the line in whole observation visual field regards
Field scanning；
Objective lens 2: be focused doing to scene radiation.
Slit diaphragm 3: make linear field picture pass through as field stop, and shelves fall the light of other parts.
Collimator objective group 4: collimate for will transmit through the light of slit diaphragm 3 so that it is for directional light；
Interferometer 5: the light through collimator objective group 4 carries out interference modulations, produces the interference signal of different optical path difference, thus
Realize spectrum.
Relay lens 6: interference light is converged to detector target surface.
Non-refrigerated infrared focal plane probe 8: convert optical signals to the signal of telecommunication.
Image-forming assembly 7: complete the functions such as signal amplification, analog digital conversion, nonuniformity correction, the rejecting of bad unit, export interferogram
Image signal.
Interference illustration processing module 9: receive image-forming assembly send interference image signal, complete interference data pretreatment,
The functions such as interference image reconstruct, output spectrum image.
As in figure 2 it is shown, the interferometer 5 of the embodiment of the present invention is contacted with each other with plane mirror 52, wherein by one piece of thin prism 51
The upper surface of thin prism 51 is zigzag, has at least two spike, and the inclination angle of thin prism 51 is can under 32mrad, practical situation
A slit alignment to design multiple spike according to demand, assembling when, in each spike and slit diaphragm 3.
The method that a kind of miniaturization non refrigerating infrared imaging spectrogrph of the present invention obtains spectrum picture is as described below:
(1) infra-red radiation of scene focuses on back focal plane through objective lens 2；
(2) scanning reflection mirror 1 carries out sweeping in the direction being perpendicular to slit diaphragm 3, does not turns over certain angle, non-brake method
Infrared focal plane detector 8 gathers a view data；
(3) slit diaphragm 3 is as field stop, gates the light focusing on its surface so that just through one
The light of linear field, being then blocked of other position；
(4) collimator objective group 4 will transmit through the light of slit diaphragm 3 and collimates so that it is parallel radiation is on interferometer 5；
(5) the midfeather thickness of the thin prism 51 in interferometer 5 is change, then can produce along being perpendicular to slit diaphragm
The interference image (sinusoidal radiation signal) of slit direction bit period change in 3.This radiation signal is relevant to wavelength, by quick Fu
In leaf transformation can revert to spectral radiance signal.
(6) when scanning reflection mirror 1 is from one end sweeping to the other end, system can obtain the infrared light of whole observation scene
Spectrum radiation signal, image-forming assembly 7 and interference illustration processing module 9 can export Gao Guang after carrying out these signals processing synthesis
Spectrum digital picture cube.
It should be appreciated that for those of ordinary skills, can be improved according to the above description or be converted,
And all these modifications and variations all should belong to the protection domain of claims of the present invention.
Claims (3)
1. a miniaturization non refrigerating infrared imaging spectrogrph, it is characterised in that include along sweeping that optical axis direction is installed successively
Retouching reflecting mirror, objective lens, slit diaphragm, collimator objective group, interferometer, relay lens and image-forming assembly, this spectrogrph also includes non-
Refrigerated infrared focal plane probe and interference illustration processing module, non-refrigerated infrared focal plane probe is placed in relay lens and imaging
Between assembly, interference illustration processing module receives the interference image signal that image-forming assembly sends, and carries out pre-to interference image signal
Process and the reconstruct of interference image, and output spectrum image；
Interferometer includes thin prism and the plane mirror contacted with each other, and wherein the upper surface of thin prism is zigzag, has at least two
Individual spike, a slit alignment in each spike and slit diaphragm.
Miniaturization non refrigerating infrared imaging spectrogrph the most according to claim 1, it is characterised in that the inclination angle of thin prism is
32mrad。
3. the method that a miniaturization non refrigerating infrared imaging spectrogrph obtains infrared imaging spectrum picture, it is characterised in that institute
Stating miniaturization non refrigerating infrared imaging spectrogrph is the miniaturization non refrigerating infrared imaging light according to any one of claim 1-3
Spectrometer, the method specifically includes following steps:
(1) infra-red radiation of scene focuses on back focal plane through objective lens；
(2) scanning reflection mirror carries out sweeping in the direction being perpendicular to slit diaphragm, often turns over certain angle, and uncooled ir is burnt
Planar detector gathers a view data；
(3) slit diaphragm is as field stop, gates the light focusing on its surface so that just through a linear field
Light, the light of other position is then blocked；
(4) collimator objective group will transmit through the light of slit diaphragm and collimates so that it is parallel radiation is on interferometer；
(5) the midfeather thickness of the thin prism in interferometer is change, can produce along being perpendicular to slit side in slit diaphragm
To the interference image of bit period change, this radiation signal is relevant to wavelength, can revert to spectrum spoke by fast Fourier transform
Penetrate signal；
(6) when scanning reflection mirror is from one end sweeping to the other end, it is thus achieved that the infrared spectral radiant signal of whole observation scene, become
As these signals are processed by assembly and interference illustration processing module, after synthesis, export EO-1 hyperion digital picture cube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610482396.7A CN106197666B (en) | 2016-06-27 | 2016-06-27 | Minimize non refrigerating infrared imaging spectrometer and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610482396.7A CN106197666B (en) | 2016-06-27 | 2016-06-27 | Minimize non refrigerating infrared imaging spectrometer and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106197666A true CN106197666A (en) | 2016-12-07 |
| CN106197666B CN106197666B (en) | 2017-12-22 |
Family
ID=57462126
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610482396.7A Active CN106197666B (en) | 2016-06-27 | 2016-06-27 | Minimize non refrigerating infrared imaging spectrometer and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106197666B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107356336A (en) * | 2017-06-29 | 2017-11-17 | 华中光电技术研究所（中国船舶重工集团公司第七七研究所） | A kind of small-sized LONG WAVE INFRARED imaging spectrometer and its imaging method |
| CN109040546A (en) * | 2018-08-04 | 2018-12-18 | 云南北方光电仪器有限公司 | A kind of infrared panoramic peephole |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2362198A2 (en) * | 2010-01-27 | 2011-08-31 | CI Systems Ltd. | Room-temperature filtering for passive infrared imaging |
| CN202735579U (en) * | 2011-08-18 | 2013-02-13 | 昆明物理研究所 | Uncooled long-wave infrared ultra-wide-angle fisheye lens |
| EP2687889A1 (en) * | 2012-07-16 | 2014-01-22 | MBDA UK Limited | Athermalized infrared objective having three lenses |
| CN203535298U (en) * | 2013-11-11 | 2014-04-09 | 成都市晶林电子技术有限公司 | Preprocessing light splitting infrared lens |
-
2016
- 2016-06-27 CN CN201610482396.7A patent/CN106197666B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2362198A2 (en) * | 2010-01-27 | 2011-08-31 | CI Systems Ltd. | Room-temperature filtering for passive infrared imaging |
| EP2362198A3 (en) * | 2010-01-27 | 2011-09-07 | CI Systems Ltd. | Room-temperature filtering for passive infrared imaging |
| CN202735579U (en) * | 2011-08-18 | 2013-02-13 | 昆明物理研究所 | Uncooled long-wave infrared ultra-wide-angle fisheye lens |
| EP2687889A1 (en) * | 2012-07-16 | 2014-01-22 | MBDA UK Limited | Athermalized infrared objective having three lenses |
| CN203535298U (en) * | 2013-11-11 | 2014-04-09 | 成都市晶林电子技术有限公司 | Preprocessing light splitting infrared lens |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107356336A (en) * | 2017-06-29 | 2017-11-17 | 华中光电技术研究所（中国船舶重工集团公司第七七研究所） | A kind of small-sized LONG WAVE INFRARED imaging spectrometer and its imaging method |
| CN107356336B (en) * | 2017-06-29 | 2019-03-19 | 华中光电技术研究所（中国船舶重工集团公司第七一七研究所） | A kind of small-sized LONG WAVE INFRARED imaging spectrometer and its imaging method |
| CN109040546A (en) * | 2018-08-04 | 2018-12-18 | 云南北方光电仪器有限公司 | A kind of infrared panoramic peephole |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106197666B (en) | 2017-12-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109632104B (en) | Infrared array radiation source calibration device and calibration method | |
| US9906737B2 (en) | Co-aperture multi-FOV image-spectrum cooperative detection system and method | |
| CN107192454B (en) | A kind of THz optical spectrum imagers based on three-dimensional phase grating and aperture segmentation technology | |
| US9518867B2 (en) | Detecting device and method combining images with spectrums in ultra-wide waveband | |
| CN204439211U (en) | A kind of ultra wide wave band collection of illustrative plates association sniffer | |
| CN106556461B (en) | Spectrum imaging device based on adaptive optics | |
| CN102338665A (en) | Infrared thermal imager and method for detecting infrared objective image by using same | |
| CN105181137A (en) | Broadband high spectral resolution imaging system for foundation-to-moon observation | |
| CN103900692B (en) | Solar grating spectral imaging device based on solar self-adaptive optical system | |
| CN109164463B (en) | Multi-aperture view field partially-overlapped polarization thermal imaging method and device | |
| CN104792416A (en) | Push-broom complete-polarization high-spectral integrated imaging unit | |
| CN106197666A (en) | Miniaturization non refrigerating infrared imaging spectrogrph and method | |
| CN106052869B (en) | A kind of infrared spectroradio meter based on gradual filter light splitting | |
| CN104501973B (en) | Solar atmosphere multiband high-resolution tomography device based on adaptive optical system | |
| CN103558160B (en) | A kind of method and system improving light spectrum image-forming spatial resolution | |
| CN106019621B (en) | A kind of high-resolution infrared imaging optical system and imaging method | |
| Nichols et al. | Modeling and analysis of a high-performance midwave infrared panoramic periscope | |
| CN207280592U (en) | A kind of three slit EO-1 hyperion moving target detection devices | |
| CN107356336B (en) | A kind of small-sized LONG WAVE INFRARED imaging spectrometer and its imaging method | |
| CN107664533B (en) | Three-slit hyperspectral moving object detection method and device | |
| Li et al. | Design of non-imaging receiving system for large field of view lidar | |
| CN205785524U (en) | A kind of hyperspectral imager based on rotating filtering sheet monochromator | |
| Ferriere et al. | In-situ measurement of concentrated solar flux and distribution at the aperture of a central solar receiver | |
| CN105865626A (en) | Hyperspectral imager based on rotary filter monochromator | |
| Hovland | Construction and demonstration of a multispectral tomographic scanning imager (TOSCA) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |