Optical detector of remote movement including cyclic scanning of

Details Optical detector of remote movement including cyclic scanning of Optical detector of remote movement including cyclic scanning of

1975-08-26

1978-10-31

Buczinski, S. C.

Optics: measuring and testing

Angle measuring or angular axial alignment

With photodetection remote from measured angle

73657, 350269, 350603, 356 28, G01B 1126, G01N 2900

Patent

active

041231660

ABSTRACT:
A detector of remote movement in which light from a laser is directed at a target and, on reflection from the target, is mixed with reference light from the laser to produce a Doppler signal denoting the movement of the target. The beam of light from the laser is directed through an optical system which brings the light to a focus and thereafter projects the light from the focus at the target. The optical system includes a lens which is mounted in a ferromagnetic carrier which can be vibrated in two orthogonal directions each normal to the axis of the light beam and the axis of the lens. Coils disposed to produce these orthogonal movements are energized in quadrature so as to produce conical scanning of the beam of light on the target. Signals which denote the modulation of the amplitude of the Doppler signal produced by the conical scanning are compared with the driving signals for the coils processed to produce bias signals which are used to bias the mean direction of the beam in a sense to increase the amplitude of the Doppler signal and thereby to control the beam automatically to seek a point on the target which produces a maximum amplitude in the derived Doppler signal.

REFERENCES:
patent: 2911470 (1959-11-01), Greenleaf et al.
patent: 3409369 (1968-11-01), Bickel
patent: 3435656 (1969-04-01), Jordan et al.
patent: 3476483 (1969-11-01), Weeks
patent: 3482436 (1969-12-01), Neish et al.
patent: 3544221 (1970-12-01), Putnam
patent: 3563664 (1971-02-01), Campbell et al.
patent: 3644043 (1972-02-01), Jones et al.
patent: 3731103 (1973-05-01), O'Meara
patent: 3733129 (1973-05-01), Bridges

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