Opto-Mechanical Assembly and Analysis of Imaging Spectrometer

The imaging spectrometer developed by ourselves was introduced. The design of the optical machine and the adjustment of the optical machine were discussed. The results of the spectral test were analyzed. The instrument's spectral range is 400-1050nm, and its optomechanical part is mainly composed of hood, instrument frame, imaging system, spectroscopic system and detection system. According to the design requirements, an off-axis three-reverse imaging system was adopted, and a single aspherical mirror system was selected through MTF test comparison analysis. The Offner spectroscopic system was chosen considering factors such as image quality and compactness. The detection system uses a surface array CCD camera. The assembly test of each component system of the optical machine part was carried out separately. Finally, the instrument was tested by mercury argon lamp. The test results show that the spectral resolution of the imaging spectrometer is less than 7nm, which is better than the design index of 10nm, which has achieved the expected goal. It also verifies the design of the optical machine and the adjustment of the optical machine.