DISPLAYING SPECTROMETRE Russian patent published in 2009 - IPC G01J3/45 

FIELD: physics; optics.

SUBSTANCE: device relates to optical instrument making. The displaying spectrometre has an interferometre 1, formed by two parallel plates on which there is a reflecting coating, a lens 2, an input window 3, a band-pass filter 4, a matrix radiation detector 5 and a monitor of a thermal imaging device 6. Proposed is optimum calculation of the distance between plates of the interferometre d, focal distance of the lens F and angle of inclination of the interferometre to the optical axis of the lens θ when the interferometre is operating in the first, second and third interference order.

EFFECT: obtaining an optimum combination of values of relative operating spectral range and relative spectral resolution of the spectrometre.

2 cl, 4 dwg