Apparatus for stabilizing a line of sight

Details Apparatus for stabilizing a line of sight Apparatus for stabilizing a line of sight

1974-10-22

1976-08-03

Wilbur, Maynard R.

Optics: measuring and testing

Angle measuring or angular axial alignment

With photodetection remote from measured angle

250203R, 351 7, G01B 1126

Patent

active

039726215

ABSTRACT:
Means for stabilizing the line of sight between an object and an optical viewing system which can move relative to each other, characterized in that electrical signals are derived with the aid of an optical grating (3',3") as a correlator, which signals correspond to the deviation from the line of sight (4) with respect to magnitude, direction, and arithmetic symbol; and that these signals are fed to a follower system (11,12) such as disclosed in L. M. Biberman: Reticles in Electro-Optical Devices, Pergamon Press, 1966, p. 45 which displaces the line of sight (4) until the original condition has been restored and the deviation has become zero again.

REFERENCES:
patent: 3244889 (1966-04-01), Preston et al.
patent: 3482107 (1969-12-01), Hock
patent: 3724932 (1973-04-01), Cornsweet
patent: 3768022 (1973-10-01), Lang
patent: 3806725 (1974-04-01), Leitz

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