CN106482834A - A kind of inteference imaging spectrometer that can actively focus - Google Patents
A kind of inteference imaging spectrometer that can actively focus Download PDFInfo
- Publication number
- CN106482834A CN106482834A CN201610915938.5A CN201610915938A CN106482834A CN 106482834 A CN106482834 A CN 106482834A CN 201610915938 A CN201610915938 A CN 201610915938A CN 106482834 A CN106482834 A CN 106482834A
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- CN
- China
- Prior art keywords
- assembly
- imaging spectrometer
- looking
- distance
- temperature control
- 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
- 238000003384 imaging method Methods 0.000 title claims abstract description 36
- 238000010438 heat treatment Methods 0.000 claims abstract description 21
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical group [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 11
- 229910052697 platinum Inorganic materials 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 239000011521 glass Substances 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 230000003287 optical effect Effects 0.000 abstract description 9
- 229910001069 Ti alloy Inorganic materials 0.000 description 16
- 238000013461 design Methods 0.000 description 4
- 238000011161 development Methods 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000000126 substance Substances 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
- G01J3/45—Interferometric spectrometry
-
- 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
Abstract
The invention belongs to optical field, more particularly, to a kind of inteference imaging spectrometer that can actively focus, including preposition assembly of looking in the distance, collimation mirror assembly, interferometer component, fourier mirror assembly and focal plane subassembly, described preposition assembly of looking in the distance is provided with temperature control system；Described temperature control system includes heating plate and the critesistor being arranged on preposition assembly primary mirror tube outer surface of looking in the distance, and described heating plate is connected with power supply, and critesistor is connected with temperature controller.Under conditions of ensureing inteference imaging spectrometer load performance, do not increase moving component, improve the reliability of system；Control accuracy is higher, meets the requirement of high-resolution inteference imaging spectrometer；It is effectively reduced mass of system, structural mechanics have good stability.
Description
Technical field
The invention belongs to optical field, more particularly, to a kind of inteference imaging spectrometer that can actively focus.
Background technology
In recent years, space technology development is very fast, and the application of spaceborne imaging spectrometer is also more and more extensive.Light spectrum image-forming
Technology is the new imaging technique that the eighties in 20th century just grows up, and it obtains substance spectra while obtaining image information
Information, can be used for classification and identification information.But it is as the development of science and technology, the technical requirement of imaging spectrometer is got over
Come higher, imaging spectrometer is very harsh to operating environment requirements, especially operating ambient temperature, when imaging spectrometer building ring
During the temperature change of border, system can be brought with very detrimental effect.Under spatial environmentss, the operating ambient temperature of imaging spectrometer
Control that can not be sufficiently stable, in claimed range, therefore can lead to the optical imagery face of imaging spectrometer and interference surface not to weigh
Close, thus having a strong impact on the quality of imaging spectrometer.
For ensureing the image quality of imaging spectrometer it is desirable to imaging spectrometer has good adaptation to the change of ambient temperature
Property, when being designed to optics, sufficient thermal design should be carried out to Light Electrical, meanwhile, increase focus adjusting mechanism in systems, lead to
Cross micro-adjusting mechanism to adjust the imaging surface position of optical system, compensate the defocusing amount of CCD, make the optical imagery face of imaging spectrometer
Overlap with interference surface, reach optimum efficiency.
Focusing mode is mainly determined by optical system, version and focusing accuracy and camera use environment, different light
System focusing mode is different, conventional mode mainly by microscope group movable type, focal plane movable reflecting mirror, focal plane movable type and
Change compensating glass thickness several.Its mentality of designing is substantially by increasing motor, ball-screw, direction of motion conversion group
Part, turbine box and encoder composition focus adjusting mechanism, the gyration of motor are converted into linear motion, drive opticses or Jiao
Face is moved within the specific limits along optical axis direction, final realization focusing.This kind of focus adjusting mechanism all employs increase moving component, knot
Structure design is more complicated, and its functional reliability under space-based environment is poor.
Content of the invention
The technical problem to be solved is to provide a kind of inteference imaging spectrometer that can actively focus, in order to solve
Complex structure in prior art, the defect of poor reliability.
For solving described technical problem, the technical solution adopted in the present invention is：A kind of interference that can actively focus is provided
Imaging spectrometer, including preposition assembly of looking in the distance, collimation mirror assembly, interferometer component, fourier mirror assembly and focal plane subassembly, it is special
Part is：It is provided with temperature control system on described preposition assembly of looking in the distance；Described temperature control system includes being arranged on preposition assembly of looking in the distance
The heating plate of primary mirror tube outer surface and critesistor, described heating plate is connected with power supply, and critesistor is connected with temperature controller.
The secondary mirror that described temperature control system is also included being arranged in preposition assembly of looking in the distance time between mirror assembly and body tube is heat-insulated
Primary mirror heat insulating mattress between pad and primary mirror assembly and body tube.
Described secondary mirror heat insulating mattress and primary mirror heat insulating mattress are glass steel material.
Described heating plate is copper heating plate.
Described critesistor is platinum resistance.
Described critesistor at least four.
The invention has the beneficial effects as follows：Under conditions of ensureing inteference imaging spectrometer load performance, do not increase motion
Part, improves the reliability of system；Control accuracy is higher, meets the requirement of high-resolution inteference imaging spectrometer；Effectively subtract
Light mass of system, structural mechanics have good stability.
Brief description
Fig. 1 is example structure schematic diagram；
Fig. 2 is preposition assembly perspective view of looking in the distance；
Fig. 3 is preposition assembly broken isometric structural representation of looking in the distance；
Fig. 4 is preposition assembly cross-sectional view of looking in the distance；
In figure, 1- mirror assembly, 2- primary mirror assembly, 3- body tube, 4- heating plate, 5- secondary mirror heat insulating mattress, 6- primary mirror is heat-insulated
Pad, 7- platinum resistance, the preposition assembly of looking in the distance of 8-, 9- collimates mirror assembly, 10- interferometer component, 11- fourier mirror assembly, 12- focal plane group
Part, image planes of 13-.
Specific embodiment
Illustrate the present invention is described in detail with reference to specific embodiments and the drawings.
As shown in Figure 1, 2, 3, a kind of utilization temperature control system realizes the inteference imaging spectrometer of actively focusing, including along light path
The preposition assembly 8 of looking in the distance setting gradually, collimation mirror assembly 9, interferometer component 10, fourier mirror assembly 11 and focal plane group are put down in transmission
Part 12.By Optical system, fourier mirror assembly is using the transconversion into heat optical design scheme that disappears it is ensured that interference surface is in complicated work
Stable under environment；Preposition assembly of looking in the distance adopts long-focus, large relative aperture Cassegrain system；By increasing in preposition assembly of looking in the distance
Plus temperature control system, carry out temperature control using temperature control system, fine setting interference imaging is achieved by expanding with heat and contract with cold of structural material
The purpose of image planes 13 of spectrogrph, thus ensure that the imaging surface of imaging spectrometer and interference surface overlap.
Preposition assembly of looking in the distance includes long-focus, large relative aperture Cassegrain's imaging system and temperature control focusing component, jam
Green's imaging system includes primary mirror, secondary mirror, correction mirror and associated structural component.
Temperature control focusing component includes heat insulating mattress, temperature control fine setting titanium alloy lens barrel, heating plate and critesistor.Heating plate silicon
Rubber is bonded at temperature control fine setting titanium alloy lens barrel outer surface, and heating plate is evenly arranged guarantee temperature control fine setting titanium alloy lens barrel thermal expansion more
Uniformly.Meanwhile, bond on temperature control fine setting titanium alloy lens barrel 4 critesistor, Real-time Feedback measurement temperature control fine setting titanium alloy mirror
The temperature of cylinder.Heat insulating mattress is installed on temperature control and finely tunes titanium alloy lens barrel and the junction of other assembly, using heat-insulated installation, it is to avoid heat
Amount conduction is to time mirror assembly and primary mirror assembly.
This example is with heat insulating mattress as glass steel material, critesistor as platinum resistance, heating plate be copper heating plate and titanium alloy
As a example lens barrel, operation principle is as follows：
By power supply make copper power up backing temperature change, conduct in temperature control finely tune titanium alloy lens barrel, using temperature control fine setting
The hot expansion property of titanium alloy lens barrel adjusts the interval of primary mirror and secondary mirror, realizes change system fine setting inteference imaging spectrometer once
The purpose of image planes 13.
According to Δ L=L* α * (T1-T0),
Wherein Δ L is the interval of primary mirror and secondary mirror, and L finely tunes the length of titanium alloy lens barrel for temperature control, and α is that the heat of titanium alloy is swollen
Swollen coefficient, T1 is to make temperature control finely tune the temperature value of titanium alloy lens barrel by heating plate, and the initial of titanium alloy lens barrel is finely tuned in T0 temperature control
Temperature value.It can be seen that when heating plate makes temperature control fine setting titanium alloy lens barrel temperature higher, interval delta L of primary mirror and secondary mirror increases
Greatly, image planes of system are toward positive direction micro-shifting；When heating plate make temperature control finely tune titanium alloy lens barrel temperature relatively low when, primary mirror and secondary mirror
Interval delta L reduce, image planes of system, toward negative direction micro-shifting, by the positive negative sense micro-shifting of image planes, final are realized once
The fine setting of image planes.
Driving original paper using the regulation of the hot expansion property design of material is the temperature control fine setting with well heat and power performance
Titanium alloy lens barrel.
The temperature control focusing component of the inteference imaging spectrometer of the present invention is looked in the distance in assembly positioned at the preposition of system, preposition looks in the distance
Assembly be long-focus, the Cassegrain system of large relative aperture, by secondary mirror assembly 1, primary mirror assembly 2, body tube 3, heating plate 4,
Secondary mirror heat insulating mattress 5, primary mirror heat insulating mattress 6 and platinum resistance 7 form, and wherein, secondary mirror assembly 1, primary mirror assembly 2 are arranged on body tube 3
Two ends, heating plate 4 is uniformly bonded on the outside face of body tube, is simultaneously installed with least four platinum resistance 7 with feedback control
Temperature information, in order to avoid heat conducts to secondary mirror assembly 1 and body tube 3, is respectively provided with the middle of primary mirror assembly 2 and body tube 3
Secondary mirror heat insulating mattress 5, primary mirror heat insulating mattress 6, as shown in Figure 4.
Claims (6)
1. a kind of inteference imaging spectrometer that can actively focus, including preposition assembly of looking in the distance, collimation mirror assembly, interferometer component,
Fourier mirror assembly and focal plane subassembly it is characterised in that：It is provided with temperature control system on described preposition assembly of looking in the distance；
Described temperature control system includes heating plate and the critesistor being arranged on preposition assembly primary mirror tube outer surface of looking in the distance, described heating
Piece is connected with power supply, and critesistor is connected with temperature controller.
2. the inteference imaging spectrometer that can actively focus according to claim 1 it is characterised in that：Described temperature control system is also
Including the secondary mirror heat insulating mattress being arranged in preposition assembly of looking in the distance time between mirror assembly and body tube and primary mirror assembly and body tube
Between primary mirror heat insulating mattress.
3. the inteference imaging spectrometer that can actively focus according to claim 2 it is characterised in that：Described secondary mirror heat insulating mattress
It is glass steel material with primary mirror heat insulating mattress.
4. the inteference imaging spectrometer that can actively focus according to claim 2 it is characterised in that：Described heating plate is copper
Matter heating plate.
5. the inteference imaging spectrometer that can actively focus according to claim 2 it is characterised in that：Described critesistor is
Platinum resistance.
6. the inteference imaging spectrometer that can actively focus according to claim 5 it is characterised in that：Described critesistor is extremely
Rare four.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610915938.5A CN106482834B (en) | 2016-10-20 | 2016-10-20 | A kind of inteference imaging spectrometer that can actively focus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610915938.5A CN106482834B (en) | 2016-10-20 | 2016-10-20 | A kind of inteference imaging spectrometer that can actively focus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106482834A true CN106482834A (en) | 2017-03-08 |
| CN106482834B CN106482834B (en) | 2018-11-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610915938.5A Active CN106482834B (en) | 2016-10-20 | 2016-10-20 | A kind of inteference imaging spectrometer that can actively focus |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110764338A (en) * | 2019-10-30 | 2020-02-07 | 长光卫星技术有限公司 | Light-duty space camera owner load device that possesses focusing function |
| US11828689B2 (en) | 2020-10-29 | 2023-11-28 | Hand Held Products, Inc. | Apparatuses, systems, and methods for sample capture and extraction |
| CN117539020A (en) * | 2024-01-10 | 2024-02-09 | 长春通视光电技术股份有限公司 | Optical load structure adopting secondary mirror temperature control focusing and focusing method |
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| CN104503061A (en) * | 2014-12-24 | 2015-04-08 | 中国科学院光电研究院 | Active thermal control focusing device for space camera |
| CN206192510U (en) * | 2016-10-20 | 2017-05-24 | 中国科学院西安光学精密机械研究所 | Interference imaging spectrometer that can initiatively focus |
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2016
- 2016-10-20 CN CN201610915938.5A patent/CN106482834B/en active Active
Patent Citations (4)
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| JP2004191244A (en) * | 2002-12-12 | 2004-07-08 | Minolta Co Ltd | Spectrograph and correction method |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110764338A (en) * | 2019-10-30 | 2020-02-07 | 长光卫星技术有限公司 | Light-duty space camera owner load device that possesses focusing function |
| CN110764338B (en) * | 2019-10-30 | 2022-02-15 | 长光卫星技术有限公司 | Light-duty space camera owner load device that possesses focusing function |
| US11828689B2 (en) | 2020-10-29 | 2023-11-28 | Hand Held Products, Inc. | Apparatuses, systems, and methods for sample capture and extraction |
| US11846574B2 (en) | 2020-10-29 | 2023-12-19 | Hand Held Products, Inc. | Apparatuses, systems, and methods for sample capture and extraction |
| US11852568B2 (en) | 2020-10-29 | 2023-12-26 | Hand Held Products, Inc. | Apparatuses, systems, and methods for sample capture and extraction |
| US11852567B2 (en) | 2020-10-29 | 2023-12-26 | Hand Held Products, Inc. | Apparatuses, systems, and methods for sample capture and extraction |
| CN117539020A (en) * | 2024-01-10 | 2024-02-09 | 长春通视光电技术股份有限公司 | Optical load structure adopting secondary mirror temperature control focusing and focusing method |
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| Publication number | Publication date |
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| CN106482834B (en) | 2018-11-02 |
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