STATIC FOURIER SPECTROMETRE Russian patent published in 2011 - IPC G01B9/00 

FIELD: physics.

SUBSTANCE: fourier spectrometre contains an input collimator optically connected to an interphotometric unit including a beam divider and at least two mirrors mounted so that to enable creation of an interference pattern localised within the mirrors plane as well as an image registration device optically connected to the interphotometric unit via a projective system. The projective system includes a spherical mirror and a lens objective centered relative to the normal to the mirror optical surface. The mirror and the lens objective are designed so that to enable passage of optical radiation through the lens objective from the interphotometric unit to the spherical mirror with reflection therefrom and passage through the same lens objective to the registration device.

EFFECT: improvement of optical characteristics of the spectrometre wherein reduction of light losses is achieved with minimum number of optical elements.

5 cl, 8 dwg