Optics: measuring and testing – Refraction testing – Prism engaging specimen
Patent
1975-06-11
1977-03-22
Corbin, John K.
Optics: measuring and testing
Refraction testing
Prism engaging specimen
331 945C, 350 96C, G01B 902
Patent
active
040133656
ABSTRACT:
An apparatus for determining rotation of an area including optical apparatus for optically circumscribing the area and to guide laser radiation counter-directionally around the circumscribed area. Differences that develop between the clockwise and counterclockwise laser radiation as a function of the rotation of the area are detected to determine the rotation of the area. The optical apparatus includes an optical fiber waveguide which may function as a laser cavity or a ring inferometer path. The ring inferometer may also be provided by at least three reflective surfaces.
REFERENCES:
patent: 3102953 (1963-09-01), Wallace
patent: 3395270 (1968-07-01), Speller
patent: 3484169 (1969-12-01), Skalski et al.
Goldstein Raymond
Krogstad Reuben S.
Shorthill Richard W.
Vali Victor
Clark Conrad
Corbin John K.
The University of Utah
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