STATIC FOURIER SPECTROMETER

摘要

The reported invention belongs to spectral interference devices and can be used for spectral research in various fields of technology. The objective of the present invention is to improve the optical characteristics of the spectrometer in which reduced loss of light from the radiation object on aberration is attained with a minimum number of optical elements produced at lower costs. The objective is achieved by the fact that the static Fourier spectrometer contains an input collimator optically coupled with the interferometric unit consisting of a beam splitter and at least two mirrors installed with the ability to create an interference image localized in the plane of the mirrors, and an image recording device optically coupled with the interferometric unit by means of the projective system with the ability to project the figure of the indicated interference image on the image recording device. Besides, the projective system includes a spherical mirror and an objective lens centered against the normal line to the optical surface of the mirror. The mirror and the objective lens are produced to enable optical radiation to pass through the objective lens from the interferometric unit to the spherical mirror, being reflected from it and passing through the same objective lens to the recording device.