CN102955248A - Fourier transform optical system based on corner reflector - Google Patents
Fourier transform optical system based on corner reflector Download PDFInfo
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- CN102955248A CN102955248A CN2011102464825A CN201110246482A CN102955248A CN 102955248 A CN102955248 A CN 102955248A CN 2011102464825 A CN2011102464825 A CN 2011102464825A CN 201110246482 A CN201110246482 A CN 201110246482A CN 102955248 A CN102955248 A CN 102955248A
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- corner reflector
- fourier transform
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- 238000001514 detection method Methods 0.000 abstract description 4
- 238000000701 chemical imaging Methods 0.000 abstract 1
- 238000001228 spectrum Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 5
- 239000011521 glass Substances 0.000 description 4
- 238000003384 imaging method Methods 0.000 description 3
- 230000003595 spectral effect Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 241001212149 Cathetus Species 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009615 fourier-transform spectroscopy Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000005339 levitation Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
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Abstract
The invention relates to a Fourier transform optical system based on a corner reflector, which comprises the corner reflector and a rotary table, wherein the corner reflector is arranged on the rotary table. The Fourier transform optical system based on the corner reflector is high in resolution, does not need reference laser and can meet the requirement of high-speed spectral imaging detection.
Description
Technical field
The invention belongs to optical field, relate to a kind of Fourier transform optical system, relate in particular to a kind of Fourier transform optical system based on corner reflector.
Technical field
Michaelson Fourier Transform Spectroscopy based on the straight line index glass has the spectral resolution advantages of higher, therefore all receives for many years maximum concerns of people always.But inclination and the velocity perturbation at the volley of its cathetus index glass all has considerable influence to system, is difficult to simultaneously realization to the high-speed inspection of target.Adopt the straight line index glass interference spectrum imager of corner reflector, have spectral resolution, anti-inclination etc. advantage is arranged.But, be limited to the requirement of translational velocity stationarity, be difficult to realize high speed spectrum imaging detection.In order to guarantee the stationarity in the index glass motion, the multiple drive forms such as sheet spring, magnetic levitation have been arranged in succession.But generally there are the deficiencies such as the low or complex structure of frame frequency in these forms.Simultaneously, also invent the high-resolution transmission rotary mirror type of high speed optical spectrum imagers, but also existed dispersion or volume large etc. not enough.
Summary of the invention
In order to solve the above-mentioned technical matters that exists in the background technology, the invention provides the Fourier transform optical system based on corner reflector that a kind of resolution is high, need not reference laser and can satisfy high speed spectrum imaging detection demand.
Technical solution of the present invention is: the invention provides a kind of Fourier transform optical system based on the angle of rotation catoptron, comprise corner reflector, its special character is: described Fourier transform optical system based on corner reflector also comprises turntable, and described corner reflector is arranged on the turntable.
Above-mentioned corner reflector is one or more.
Above-mentioned corner reflector is two.
Above-mentioned turntable is the one dimension turntable.
Advantage of the present invention is:
The Fourier trasform spectroscopy optical system of the corner reflector that the present invention proposes is installed a plurality of corner reflectors at same rotatable platform, realizes Fast Process is surveyed.Adopt the corner reflector that rotates to realize the rapid scanning of interferogram in Michaelson interference spectrum imager, the advantage of doing like this is: the one, kept Michelson interference spectrum imager spectral resolution advantages of higher; The 2nd, do not need reference laser, structure is compact comparatively speaking; The 3rd, each rotation period of rotatable platform can be realized twice sweep, realizes easily the high-velocity scanning of interferogram, satisfies the demand of high speed spectrum imaging detection.
Description of drawings
Fig. 1 is the structural representation of optical system provided by the present invention;
Wherein:
The 1-collimating mirror; The 2-beam splitter; The 3-detector; The 4-tilting mirror.
Embodiment
Referring to Fig. 1, the invention provides a kind of Fourier transform optical system based on corner reflector, identical with the Fourier transform optical system of transmission, all comprise collimating mirror 1, beam splitter 2, detector 3 and tilting mirror 4, collimating mirror 1 is arranged on the input path; Beam splitter 2 is arranged on the collimated light path through collimating mirror 1; Detector 3 is arranged in the reflection or transmitted light path of beam splitter 2; Tilting mirror 4 is arranged on the transmitted light path of beam splitter 2; Different from tradition is that the present invention is arranged at tilting mirror on the turntable, and at same rotatable platform one or more corner reflectors is installed, and realizes Fast Process is surveyed.In Michaelson interference spectrum imager, adopt the corner reflector that rotates to realize the rapid scanning of interferogram,
The present invention when turntable rotates, drives corner reflector and rotates together when work, uses corner reflector to rotate and forms optical path difference; When turntable rotated in the week, two or more corner reflectors can be arranged, finish twice or the repeatedly collection of interferogram; Certainly, fixed mirror also adopts same corner reflector.
Use the one dimension turntable among the present invention, generally this turntable has three characteristics: 1) axle is that rotation process rolling momentum general control is 2 " in, to guarantee the optical path difference in the sampling process; 2) this turntable rotating speed is adjustable, to adapt to different sample frequency demands; 3) speed stability in this turntable rotation process is high, and general control is sampled according to the timeline sexual intercourse guaranteeing in 0.3%, avoids using reference laser.
Claims (4)
1. the Fourier transform optical system based on corner reflector comprises corner reflector, it is characterized in that: described Fourier transform optical system based on corner reflector also comprises turntable, and described corner reflector is arranged on the turntable.
2. the Fourier transform optical system based on corner reflector according to claim 1, it is characterized in that: described corner reflector is one or more.
3. the Fourier transform optical system based on corner reflector according to claim 2, it is characterized in that: described corner reflector is two.
4. according to claim 1 and 2 or 3 described Fourier transform optical systems based on corner reflector, it is characterized in that: described turntable is the one dimension turntable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102464825A CN102955248A (en) | 2011-08-25 | 2011-08-25 | Fourier transform optical system based on corner reflector |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011102464825A CN102955248A (en) | 2011-08-25 | 2011-08-25 | Fourier transform optical system based on corner reflector |
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| Publication Number | Publication Date |
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| CN102955248A true CN102955248A (en) | 2013-03-06 |
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| CN2011102464825A Pending CN102955248A (en) | 2011-08-25 | 2011-08-25 | Fourier transform optical system based on corner reflector |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4383762A (en) * | 1980-02-14 | 1983-05-17 | Kayser-Threde Gmbh | Two-beam interferometer for Fourier spectroscopy with rigid pendulum |
| US6124929A (en) * | 1998-08-18 | 2000-09-26 | Weibel; Stephen C. | Michelson interferometer with orbiting retroreflector |
| US6229614B1 (en) * | 1996-07-12 | 2001-05-08 | Foss Electric A/S | Interferometer |
| CN1397794A (en) * | 2002-08-21 | 2003-02-19 | 北京大学 | Method and instrument for detecting infrared spectrum of biological tissue |
| CN202230247U (en) * | 2011-08-25 | 2012-05-23 | 中国科学院西安光学精密机械研究所 | Fourier transform optical system based on corner reflector |
-
2011
- 2011-08-25 CN CN2011102464825A patent/CN102955248A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4383762A (en) * | 1980-02-14 | 1983-05-17 | Kayser-Threde Gmbh | Two-beam interferometer for Fourier spectroscopy with rigid pendulum |
| US6229614B1 (en) * | 1996-07-12 | 2001-05-08 | Foss Electric A/S | Interferometer |
| US6124929A (en) * | 1998-08-18 | 2000-09-26 | Weibel; Stephen C. | Michelson interferometer with orbiting retroreflector |
| CN1397794A (en) * | 2002-08-21 | 2003-02-19 | 北京大学 | Method and instrument for detecting infrared spectrum of biological tissue |
| CN202230247U (en) * | 2011-08-25 | 2012-05-23 | 中国科学院西安光学精密机械研究所 | Fourier transform optical system based on corner reflector |
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Application publication date: 20130306 |