An Interferometric Imaging Spectrometer with Active Focus

Abstract

The invention belongs to the optical field and especially relates to an active focusing interference imaging spectrometer. The spectrometer comprises a preposition telescopic assembly, a collimating mirror assembly, an interferometer assembly, a Fourier mirror assembly and a focal plane assembly. The preposition telescopic assembly is provided with a temperature control system. The temperature control system comprises a heating sheet arranged on an outer surface of a main lens cone of the preposition telescopic assembly and a thermistor. The heating sheet is connected to a power supply. The thermistor is connected to a temperature controller. Under the condition of guaranteeing interference imaging spectrometer loading performance, a moving component is not increased and system reliability improved. Control precision is high and a requirement of a high-resolution interference imaging spectrometer is satisfied. System mass is effectively mitigated and structural mechanics stability is good.

Description

technical field

[0001] The invention belongs to the field of optics, in particular to an interference imaging spectrometer capable of active focus adjustment. Background technique

[0002] In recent years, aerospace technology has developed very rapidly, and the application of spaceborne imaging spectrometers has become more and more extensive. Spectral imaging technology is a new imaging technology developed in the 1980s. It obtains material spectral information while obtaining image information, which can be used to classify and identify information. However, with the development of science and technology, the technical specifications of the imaging spectrometer are getting higher and higher. The imaging spectrometer has very strict requirements on the working environment, especially the working environment temperature. When the working environment temperature of the imaging spectrometer changes, it will bring great damage to the system. negative effect. In the space env...

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