Imaging method of high stability high spectral resolution interference imaging spectrograph and spectrograph

A high-stability, interferometric imaging technology, applied in the field of spectrometers, can solve problems such as low spectral resolution, complex system structure, and low scanning speed, and achieve high resolution, high scanning efficiency, and weight reduction.

Inactive Publication Date: 2008-09-03
XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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Problems solved by technology

[0005] The purpose of the present invention is to provide a high-stability high-spectral resolution interference imaging spectrometer imaging method and spectrometer, which solves the problem of only single-pixel sampling, low work efficiency, complex system structure, low scanning speed, etc. in the background technology. Technical problems of poor stability and relatively low spectral resolution

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  • Imaging method of high stability high spectral resolution interference imaging spectrograph and spectrograph
  • Imaging method of high stability high spectral resolution interference imaging spectrograph and spectrograph

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Embodiment Construction

[0054] See attached figure 1 The optical system of the present invention is mainly composed of collimating lens 1, beam splitter 2, rotating mirror 3, A-angle reflector (5)-6, front optical system 11 and Fourier lens 8; the interference system is mainly composed of collimating lens 1. The beam splitter 2, the rotating mirror 3, the angle A reflector (5), the angle B reflector 6, the plane reflector 7, and the Fourier lens 8. The detection system is mainly composed of the detector 9, and the information processing system is mainly composed of the computer processing system 12. See attached figure 2 .

[0055] The working principle of the present invention: when the rotating mirror 3 is stationary, the light beam on the main optical axis is divided by the beam splitter 2 into two light beams, and the optical paths of the two light beams are equal. When the rotating mirror 3 rotates under the drive of the motor 4, the reflected light beam I split by the beam splitter 2 for the first...

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Abstract

The present invention is a high stability and high spectral resolution interference imaging spectrograph and its imaging process. The collimating lens converts the light from the target into a parallel beam and the beam splitter separates it into a reflected beam and a transmitted beam. The reflected beam is reflected in the rotating mirror and the corner reflector for several times, returned to the beam splitter and converged by the Fourier lens to the detector to form the first beam optical path. The transmitted beam is reflected in the plane reflector and the corner reflector for several times, returned to the beam splitter and converged by the Fourier lens to the detector to form the second beam optical path. These two beams have optical path difference to the detector so as to form interference spectrogram, which is Fourier transformed in the computer to obtain restored target image. The present invention has small instrument size and simple manufacture.

Description

Technical field [0001] The invention relates to a moving mirror interference imaging method for quickly obtaining target interference spectrum and a spectrometer for implementing the method, in particular to an imaging method for an interference imaging spectrometer with high stability and high spectral resolution and a spectrometer for implementing the method. Background technique [0002] The earlier imaging spectrometers include the Michelson interferometric temporal modulation spatial imaging Fourier transform spectrometer (1FTS) developed by the French Space and Strategic Systems Division in 1991 [D Simenoni.New concept for high-compact imaging Fourier transform spectrometer (1FTS) [C ), SPIE, 1991, 1479: 127-138.), Michelson interferometric time modulation spatial imaging Fourier transform spectrometer developed by Lawrence Livermore Laboratory in 1995 in the United States [MichaelRCarter, Charles LBennett, David J Fields, etal. Live moreimaging Fourier transformspectromete...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01J3/45G02B27/10
Inventor 相里斌苏丽娟袁艳黄旻张文喜陶然
Owner XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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