Optics: measuring and testing – By dispersed light spectroscopy – Utilizing a spectrometer
Patent
1993-03-09
1995-07-11
Turner, Samuel A.
Optics: measuring and testing
By dispersed light spectroscopy
Utilizing a spectrometer
372 94, G01C 1966
Patent
active
054326044
ABSTRACT:
A ring laser gyroscope has an electrically insulating barrier ring placed between the grounded metal mounting device and the frame, which is formed of a lithium aluminosilicate material that contains mobile ions. The barrier ring prevents migration of the ions from the frame material to the mirrors that are used to direct the counterpropagating waves around the closed path in the ring laser gyroscope.
REFERENCES:
patent: 4733966 (1988-03-01), Butler
patent: 4779985 (1988-10-01), Wirt
patent: 4790657 (1988-12-01), Kozma
patent: 5098189 (1992-03-01), von Bieren
A. P. Voitovich et al., "Properties of ring lasers containing optical elements with magnetic circular dichroism", Sov. J. Quantum Electron, vol. 8, No. 5 May 1978, pp. 555-559.
Assendrup James D.
Canfield John M.
Geosling Christine E.
Nicol Ann T.
Volk Charles H.
Litton Systems Inc.
Turner Samuel A.
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