Position detector by vibrating a light beam for averaging the re

Details Position detector by vibrating a light beam for averaging the re Position detector by vibrating a light beam for averaging the re

1987-01-23

1987-10-06

LaRoche, Eugene R.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

356 1, G01N 2186

Patent

active

046985131

ABSTRACT:
A device for measuring the position of an object has a light radiation mechanism for causing light to be obliquely incident on a surface of the object, a vibrating mechanism for vibrating the light incident on the surface of the object at a predetermined frequency, and a detecting mechanism for detecting light reflected by the surface of the object, generating a detection signal, and obtaining the position of the object in accordance with the detection signal.

REFERENCES:
patent: 3847485 (1974-11-01), Zanoni

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