Hydraulic gimbal system for beam projection lamps

Details Hydraulic gimbal system for beam projection lamps Hydraulic gimbal system for beam projection lamps

1975-06-17

1978-09-05

McGraw, Vincent P.

Optics: measuring and testing

Sample, specimen, or standard holder or support

74 54, 74 56R, 356121, G01N 2116, G01J 100

Patent

active

041115627

ABSTRACT:
A gimbal system is disclosed in which low static friction hydraulic motors drive two concentric movable rings in orthogonal planes. For each ring, the drive shaft of the motor is part of one supporting axle. The other supporting axle is coupled to a shaft position encoder. The motor is mounted so that only rotational motion is imparted to the ring, and the encoder is mounted so that only rotational motion is read out.

REFERENCES:
patent: 2880557 (1959-04-01), Todd et al.
An Instrument for Automatically Recording Isocandela Diagrams of Beamed Light Sources, W. Bahler, Philips Technical Review, vol. 23, No. 8/9, pp. 278-292, 1961/1962.

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