Assembling and aligning device and method for thermal infrared spectrum imaging system
A technology of thermal infrared spectroscopy and imaging system, which is applied in the field of optical instrument installation and calibration technology, can solve problems such as installation and calibration difficulties, and achieve the effect of shortening the installation and calibration cycle and strong repeatability
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[0039] According to figure 1 Give a better embodiment of the present invention and elaborate it in detail:
[0040] The focal length of the telescope objective, collimator and converging lens of the spectral imaging system to be installed and adjusted is 40mm, using a plane reflection blazed grating, and the grating incident angle θ of the center working wavelength 2 Is 41.8°, the diffraction angle (θ 1 -θ 2 ) Is 48.2°, and the optical path between the telescope lens and the rear converging lens forms θ 1 Is 90°. The collimator used is a self-developed instrument with a focal length of 4000mm. The detector is an area array detector with a pixel size of 0.03mm. The slit-to-slit width and interval are 4000×0.03 / 40=3mm. The black body model is HFY-300A made by Shanghai Fuyuan Company. The black body is on the collimator stage, with only a slit pair in the front, and the slit pair is at the focal plane of the collimator. According to the method of the present invention, the relative p...
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