IMAGING FOURIER SPECTROMETER Russian patent published in 2013 - IPC G01J3/45 G01B9/02 

FIELD: physics.

SUBSTANCE: Fourier spectrometer is designed based on a double-beam interferometer with transverse shift of interfering beams and has on the beam path an input aperture, an input lens, a double-beam interferometer with transverse shift of interfering beams, a Fourier lens and a multi-element matrix photodetector. Between the input aperture and the input lens, as well as between the Fourier lens and the multi-element matrix photodetector there are flat rotating mirrors mounted at the same angles to the optical axis, said mirrors being provided with an integrated electric drive dynamic system. The axes of rotation of the mirrors lie in the plane of the flat mirrors themselves, pass through the optical axis and are perpendicular to the plane in which the transverse shift of interfering beams occurs.

EFFECT: high spectral resolution and simple scanning system.

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