Detection of angular deflection

Details Detection of angular deflection Detection of angular deflection

1975-03-24

1976-11-30

Farley, Richard A.

Optics: measuring and testing

Angle measuring or angular axial alignment

With photodetection remote from measured angle

73 1E, 250230, 250239, 324 97, G01B 1126, G01D 530

Patent

active

039945880

ABSTRACT:
A mirror is mounted on a torsion fiber and at right angles to the axis of a light emitting semi-conductor (diode) with front lens. Two silicon photo-detectors are symmetrically positioned to the axis, right next to the lens, but in spaced apart relation for leaving a gap between them through which passes the light. Detectors and diode are mounted in a metal block.

REFERENCES:
patent: 2640866 (1953-06-01), Powell
patent: 3026472 (1962-03-01), Greene et al.
patent: 3395287 (1968-07-01), Rajac
patent: 3486826 (1969-12-01), Colvin et al.
patent: 3533699 (1970-10-01), Hopkins et al.

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