CN106197666B - Minimize non refrigerating infrared imaging spectrometer and method - Google Patents
Minimize non refrigerating infrared imaging spectrometer and method Download PDFInfo
- Publication number
- CN106197666B CN106197666B CN201610482396.7A CN201610482396A CN106197666B CN 106197666 B CN106197666 B CN 106197666B CN 201610482396 A CN201610482396 A CN 201610482396A CN 106197666 B CN106197666 B CN 106197666B
- Authority
- CN
- China
- Prior art keywords
- image
- interference
- infrared imaging
- interferometer
- slit diaphragm
- 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.)
- Active
Links
- 238000003331 infrared imaging Methods 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title claims abstract description 14
- 238000012545 processing Methods 0.000 claims abstract description 12
- 238000001228 spectrum Methods 0.000 claims abstract description 9
- 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
- 230000003595 spectral effect Effects 0.000 claims description 7
- 238000010408 sweeping Methods 0.000 claims description 6
- 230000008859 change Effects 0.000 claims description 4
- 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
- 238000007781 pre-processing Methods 0.000 claims 1
- 238000004458 analytical method Methods 0.000 description 2
- 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
- 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
- 230000009466 transformation Effects 0.000 description 1
- 230000007306 turnover 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 spectrometer and method, and wherein spectrometer includes what is installed successively along optical axis direction：Scanning reflection mirror, objective lens, slit diaphragm, collimation object microscope group, interferometer, relay lens and image-forming assembly, the spectrometer 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 is sent, interference image signal is pre-processed and the reconstruct of interference image, and output spectrum image；Interferometer includes the thin prism and level crossing that contact with each other, and the upper surface of wherein thin prism is zigzag, has at least two spikes, and a slit in each spike and slit diaphragm aligns.
Description
Technical field
The present invention relates to infrared spectrum technical field of imaging, more particularly to a kind of miniaturization non refrigerating infrared imaging spectrometer
And method.
Background technology
Infrared Imaging Spectrometer can provide scene image information and spectral information simultaneously, so as to analyse in depth scene objects
Composition and characteristic, it is a kind of important observation, analysis and detection device.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 just progressively turn into light
The important growing market in Electrical imaging field.
Compared to 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 application.Especially in LONG WAVE INFRARED scope,
The resolution ratio of filtering device and Dispersive Devices is relatively low, and signal energy decay is serious；And the time based on Michelson's interferometer
Modulate the problem of light splitting technology is larger there is also volume weight, with high costs.By contrast, interferometer is a kind of spatial modulation type
Light splitting part, while preferable spectral resolution is provided, volume and weight also can obtain effective control, be currently realize it is small
The possible technique route of type, EO-1 hyperion LONG WAVE INFRARED imaging spectrometer.
The content of the invention
The technical problem to be solved in the present invention is to lack for thermal infrared imager volume and weight in the prior art is larger
Fall into, there is provided one kind miniaturization non refrigerating infrared imaging spectrometer and method.
The technical solution adopted for the present invention to solve the technical problems is：
A kind of miniaturization non refrigerating infrared imaging spectrometer is provided, including installed successively along optical axis direction：Scanning is anti-
Mirror, objective lens, slit diaphragm, collimation object microscope group, interferometer, relay lens and image-forming assembly are penetrated, the spectrometer also includes non-brake method
Infrared focal plane detector and interference illustration processing module, non-refrigerated infrared focal plane probe are placed in relay lens and image-forming assembly
Between, interference illustration processing module receives the interference image signal that image-forming assembly is sent, and interference image signal is pre-processed
With the reconstruct of interference image, and output spectrum image；
Interferometer includes the thin prism and level crossing to contact with each other, and the upper surface of wherein thin prism is zigzag, has extremely
Few two spikes, the slit alignment in each spike and slit diaphragm.
In miniaturization non refrigerating infrared imaging spectrometer of the present invention, the inclination angle of thin prism is 32mrad.
Present invention also offers a kind of side for minimizing non refrigerating infrared imaging spectrometer and obtaining infrared imaging spectrum picture
Method, this method specifically include following steps：
(1) infra-red radiation of scene is focused on back focal plane through objective lens；
(2) scanning reflection mirror is carrying out sweeping perpendicular to the direction of slit diaphragm, often turns over certain angle, non-brake method is red
Outer focus planar detector gathers a view data；
(3) slit diaphragm gates as field stop to the light for focusing on its surface so that just through a line
The light of visual field, the light of other positions are then blocked；
(4) collimation object microscope group will transmit through the light of slit diaphragm and be collimated, and make its parallel radiation on interferometer；
(5) the midfeather thickness of the thin prism in interferometer is change, then can produce along in slit diaphragm
The interference image of slit direction bit period change, the radiation signal is related to wavelength, can be reverted to by Fast Fourier Transform (FFT)
Spectral radiance signal；
(6) when scanning reflection mirror is from one end sweeping to the other end, the infrared spectral radiant letter of whole observation scene is obtained
Number, image-forming assembly and interference illustration processing module are handled these signals, and output EO-1 hyperion digital picture is stood after synthesis
Side.
The beneficial effect comprise that：The present invention obtains different linear fields using the interferometer structure of special sawtooth pattern
Gathered while the interference pattern in region so that the acquisition rate of spectrum picture is lifted, while can also reduce the body of system
Product so that system architecture is compacter.
Brief description of the drawings
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing：
Fig. 1 is Infrared Imaging Spectrometer composition frame chart of the embodiment of the present invention；
Fig. 2 is interferometer schematic diagram of the embodiment of the present invention.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that specific embodiment described herein is only to explain the present invention, not
For limiting the present invention.
As shown in figure 1, the miniaturization non refrigerating infrared imaging spectrometer of the embodiment of the present invention includes scanning reflection mirror 1, thing
Microscope group 2, slit diaphragm 3, collimation object microscope group 4, interferometer 5, relay lens 6, non-refrigerated infrared focal plane probe 8, image-forming assembly 7
With the grade of interference illustration processing module 9 part.Installed successively along the direction of optical axis：Scanning reflection mirror 1, objective lens 2, slit diaphragm
3rd, collimation object microscope group 4, interferometer 5, relay lens 6, non-refrigerated infrared focal plane probe 8.The function of each component is as described below：
Scanning reflection mirror 1：It is scanned perpendicular to the direction of slit diaphragm 3, realizes that the line in whole observation visual field regards
Field scan；
Objective lens 2：Scene radiation is focused dry.
Slit diaphragm 3：Make linear field picture by the way that and shelves fall the light of other parts as field stop.
Collimation object microscope group 4：Light for will transmit through slit diaphragm 3 is collimated, and is directional light；
Interferometer 5：Interference modulations are carried out through the light of collimation object microscope group 4, produce the interference signal of different optical path differences, so as to
Realize spectrum.
Relay lens 6：Interference light is converged into detector target surface.
Non-refrigerated infrared focal plane probe 8：Convert optical signals to electric signal.
Image-forming assembly 7：The functions such as signal amplification, analog-to-digital conversion, nonuniformity correction, bad member rejecting are completed, export interference pattern
As signal.
Interference illustration processing module 9：The interference image signal that reception image-forming assembly is sent, the pretreatment of completion interference data,
The functions such as interference image reconstruct, output spectrum image.
As shown in Fig. 2 the interferometer 5 of the embodiment of the present invention is contacted with each other by one piece of thin prism 51 with level crossing 52, wherein
The upper surface of thin prism 51 is zigzag, has at least two spikes, the inclination angle of thin prism 51 is 32mrad, can under actual conditions
To design multiple spikes according to demand, when assembling, the slit alignment in each spike and slit diaphragm 3.
The method that a kind of miniaturization non refrigerating infrared imaging spectrometer of the present invention obtains spectrum picture is as described below：
(1) infra-red radiation of scene is focused on back focal plane through objective lens 2；
(2) scanning reflection mirror 1 is carrying out sweeping perpendicular to the direction of slit diaphragm 3, does not turn over certain angle, non-brake method
Infrared focal plane detector 8 gathers a view data；
(3) slit diaphragm 3 is used as field stop, and the light for focusing on its surface is gated so that just through one
The light of linear field, other positions are then blocked；
(4) collimation object microscope group 4 will transmit through the light of slit diaphragm 3 and be collimated, and make its parallel radiation on interferometer 5；
(5) the midfeather thickness of the thin prism 51 in interferometer 5 is change, then can produce along perpendicular to slit diaphragm
The interference image (sinusoidal radiation signal) that slit direction bit period changes in 3.The radiation signal is related to wavelength, passes through 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
Radiation signal is composed, image-forming assembly 7 and interference illustration processing module 9 carry out that after processing synthesis bloom can be exported to these signals
Compose digital picture cube.
It should be appreciated that for those of ordinary skills, can according to the above description be improved or converted,
And all these modifications and variations should all belong to the protection domain of appended claims of the present invention.
Claims (3)
1. one kind miniaturization non refrigerating infrared imaging spectrometer, it is characterised in that swept including what is installed successively along optical axis direction
Speculum, objective lens, slit diaphragm, collimation object microscope group, interferometer, relay lens and image-forming assembly are retouched, the spectrometer also includes non-
Refrigerated infrared focal plane probe and interference illustration processing module, non-refrigerated infrared focal plane probe are placed in relay lens and imaging
Between component, interference illustration processing module receives the interference image signal that image-forming assembly is sent, and interference image signal is carried out pre-
Processing and the reconstruct of interference image, and output spectrum image；
Interferometer includes the thin prism and level crossing to contact with each other, and the upper surface of wherein thin prism is zigzag, has at least two
Individual spike, the slit alignment in each spike and slit diaphragm.
2. miniaturization non refrigerating infrared imaging spectrometer according to claim 1, it is characterised in that the inclination angle of thin prism is
32mrad。
A kind of 3. method for minimizing non refrigerating infrared imaging spectrometer and obtaining infrared imaging spectrum picture, it is characterised in that institute
It is the miniaturization non refrigerating infrared imaging light any one of claim 1-2 to state miniaturization non refrigerating infrared imaging spectrometer
Spectrometer, this method specifically include following steps：
（1）The infra-red radiation of scene is focused on back focal plane through objective lens；
（2）Scanning reflection mirror is carrying out sweeping perpendicular to the direction of slit diaphragm, often turns over certain angle, and uncooled ir is burnt
Planar detector gathers a view data；
（3）Slit diaphragm gates as field stop to the light for focusing on its surface so that just through a linear field
Light, the light of other positions is then blocked；
（4）The light that collimation object microscope group will transmit through slit diaphragm is collimated, and makes its parallel radiation on interferometer；
（5）The midfeather thickness of thin prism in interferometer is change, can be produced along the slit side in slit diaphragm
The interference image changed to bit period, the radiation signal of the interference image is related to wavelength, can be extensive by Fast Fourier Transform (FFT)
It is spectral radiance signal again；
（6）When scanning reflection mirror is from one end sweeping to the other end, the infrared spectral radiant signal of whole observation scene is obtained, into
As component and interference illustration processing module are handled these signals, output EO-1 hyperion digital picture cube after synthesis.
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 CN106197666A (en) | 2016-12-07 |
| CN106197666B true 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) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9121760B2 (en) * | 2010-01-27 | 2015-09-01 | 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
Also Published As
| Publication number | Publication date |
|---|---|
| CN106197666A (en) | 2016-12-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109632104B (en) | Infrared array radiation source calibration device and calibration method | |
| CN105676305B (en) | A kind of many visual field collection of illustrative plates cooperative detection systems of Shared aperture and method | |
| Cao et al. | A prism-mask system for multispectral video acquisition | |
| CN107192454B (en) | A kind of THz optical spectrum imagers based on three-dimensional phase grating and aperture segmentation technology | |
| CN105910712B (en) | Five-channel self-adaption two-dimensional temperature field measuring apparatus and its measurement method | |
| CN106932097B (en) | A kind of dual-waveband imaging associates the weak signal target detection device and method that full spectrum surveys spectrum | |
| CN201293684Y (en) | Three-way real time temperature measurement thermal imager | |
| CN103837513B (en) | A kind of illumination microscopic method of the mating plate based on difference and device | |
| US10436907B1 (en) | Active christiansen effect LIDAR system and method | |
| CN109164463B (en) | Multi-aperture view field partially-overlapped polarization thermal imaging method and device | |
| CN106197666B (en) | Minimize non refrigerating infrared imaging spectrometer and method | |
| CN107436194A (en) | A kind of high light flux real time spectrum imaging device | |
| CN110887564A (en) | Moving target spectrum monitoring device and monitoring method | |
| CN102062945B (en) | Spatial variable-resolution infrared double-color imaging detection system | |
| CN112924028A (en) | Light field polarization imaging detection system for sea surface oil spill | |
| CN109425434A (en) | A kind of plasma three dimensional temperature field measurement device for eliminating emissivity error | |
| CN104266756A (en) | Broadband infrared scanning beam split device and calibrating method | |
| CN102661801B (en) | Super-resolution thermal infrared imager and method for acquiring high-resolution infrared image | |
| CN106989820B (en) | Multispectral imaging optical system based on homocentric sphere concentrating element | |
| CN105301759A (en) | Self-adaptive optical compensation device and compensation method based on reflector array | |
| CN209182525U (en) | Millimeter wave terahertz imaging equipment | |
| CN100427906C (en) | Total reflection type Fourier transform imaging spectrometer employing Fresnel double-mirror | |
| CN104155002B (en) | Scanning imagery spectrometer system | |
| CN107152971B (en) | A method of improving linear array infrared exoelectron enlarged drawing level detail resolution ratio | |
| CN107356336B (en) | A kind of small-sized LONG WAVE INFRARED imaging spectrometer and its imaging method |
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 |