Interferometer compensation for displacement inaccuracies during

Details Interferometer compensation for displacement inaccuracies during Interferometer compensation for displacement inaccuracies during

1995-03-10

1997-07-22

Turner, Samuel A.

Optics: measuring and testing

By particle light scattering

With photocell detection

G01B 902

Patent

active

056508484

ABSTRACT:
An interferometer includes a beam splitter (BS) and two scanning mirrors (M1, M2), which are parallel and disposed on a common slide member that can be linearly displaced. The interferometer further comprises two compensating mirrors (M3, M4), which are disposed between the beam splitter (BS) and the scanning mirrors (M1, M2). The beam splitter (BS) and each of the compensating mirrors (M3, M4) are orthogonal. The interferometer has good tolerance for displacement inaccuracies of the scanning mirrors (M1, M2). The interferometer may be used for producing a compact and inexpensive Fourier transform spectrometer.

REFERENCES:
patent: 4165183 (1979-08-01), Hall et al.
patent: 4319843 (1982-03-01), Gornall
patent: 4383762 (1983-05-01), Burkert
patent: 4684255 (1987-08-01), Ford
patent: 5066990 (1991-11-01), Rippel
patent: 5150172 (1992-09-01), Brierley
patent: 5159405 (1992-10-01), Ukon

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