Abstract: 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.