Imaging method for high stablility interference imaging spectral instrument and spetral instrument for realizing said method

A technology of interference imaging and high stability, which is applied in the field of spectrometers, can solve the problems of complex system structure, low work efficiency, and low scanning speed, and achieve the effect of high scanning efficiency, simple structure, and low driving power

Inactive Publication Date: 2008-07-09
XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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Problems solved by technology

[0005] The object of the present invention is to provide an imaging method of a high-stability interference imaging spectrometer and a spectrometer for realizing the method, which solves the problem of only single-pixel sampling, low work efficiency, complex system structure, and low scanning speed in the background technology. , technical problems of poor stability

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  • Imaging method for high stablility interference imaging spectral instrument and spetral instrument for realizing said method
  • Imaging method for high stablility interference imaging spectral instrument and spetral instrument for realizing said method
  • Imaging method for high stablility interference imaging spectral instrument and spetral instrument for realizing said method

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Embodiment Construction

[0050] See attached figure 1 , the optical system of the present invention mainly consists of a collimating lens 1, a beam splitter 2, a rotating mirror 3, a first corner reflector 5, a second corner reflector 6, a third corner reflector 7, a front optical system 11 and a Fourier lens 8; the interference system is mainly composed of a collimator lens 1, a beam splitter 2, a rotating mirror 3, a first corner reflector 5, a second corner reflector 6, a third corner reflector 7 and a Fourier lens 8. Detection system is mainly made of detector 9, see attached figure 2 ; The computer processing system 12 is an information processing system.

[0051] Working principle of the present invention: when the rotating mirror 3 is stationary, the light beam on the main optical axis is divided into two beams by the beam splitter 2, and the optical paths of the two beams are equal. When the rotating mirror 3 rotates under the drive of the motor 4, the reflected beam I split by the beam spl...

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Abstract

Collimating lens of the disclosed spectrometer converts light from target into parallel beam, which is divided into folded light beam IF and transmitted light IT after beam splitter. After multiple reflections through tilting mirror and angle reflector, beam IF returns back to beam splitter, and is converged to detector by Fourier lens so as to form first optical path. After multiple reflections through angle reflector and beam splitter, light IT return back to beam splitter and is converged to detector by Fourier lens so as to form second optical path. When two beams reach to detector, optical path difference is generated so as to create interference spectrogram on detector. Through computer Fourier transform, image of target is obtained from recovered interference spectrogram. Comparing with prior art, the invention solves issues of only sampling single pixel, complex structure, and poor stability, providing features of real time and scanning large area of target.

Description

technical field [0001] The invention relates to a moving-mirror interference imaging method for quickly obtaining target interference spectrum and a spectrometer for realizing the method, in particular to an imaging method for a high-stability interference imaging spectrometer and a spectrometer for realizing the method. Background technique [0002] The earlier imaging spectrometer was the Michelson interferometric time-modulated space imaging Fourier transform spectrometer [D Simenoni. New concept for high-compact imaging Fourier transform spectrometer (IFTS)[ C]. SPIE, 1991, 1479: 127-138.], the Michelson interferometric time-modulated spatial imaging Fourier transform spectrometer developed by Lawrence Livermore Laboratory in the United States in 1995 [Michael R Carter, Charles L Bennett, DavidJ Fields, et al. Live more imaging Fourier transform spectrometer[C]. SPIE, 1995, 2480: 380-386.]. It adopts a linear reciprocating scanning method, and must turn at the end of ea...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01J3/26G01J3/45
Inventor 相里斌苏丽娟袁艳
Owner XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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