Interferometer spectrometer having means for varying the optical

Details Interferometer spectrometer having means for varying the optical Interferometer spectrometer having means for varying the optical

1991-12-18

1996-07-16

Turner, Samuel A.

Optics: measuring and testing

By particle light scattering

With photocell detection

G01B 902

Patent

active

055372082

ABSTRACT:
An interferometer which may be used in a Fourier transform infra red spectrometer comprises a beam splitter (10), first and second fixed mirrors (18,26), path length variation means (20), and a folding mirror (16). The optical components are mounted on a casting (8) such that the beam splitter (10) and folding mirror (16) are arranged parallel to each other and the fixed mirrors (18,26) are attached to a single face of the casting in the same plane. The path length variation means (20) comprises two parallel opposed mirrors (22,24) which are rotatable to vary the length of the optical path between the beam splitter (10) and the fixed mirror (26).

REFERENCES:
patent: 4681445 (1987-07-01), Perkins
patent: 4684255 (1987-08-01), Ford
patent: 4717241 (1988-01-01), Aagano
patent: 4726657 (1988-02-01), Perkins et al.
patent: 4915502 (1990-04-01), Brierley
patent: 4991961 (1991-02-01), Strait

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