Radiant energy – Photocells; circuits and apparatus – Photocell controls its own optical systems
Patent
1984-05-03
1987-01-06
Westin, Edward P.
Radiant energy
Photocells; circuits and apparatus
Photocell controls its own optical systems
356400, 250561, G01N 2186
Patent
active
046348760
ABSTRACT:
A device for detecting a position of an object including apparatus for producing a light beam, apparatus for scanningly deflecting the light beam with respect to the object, apparatus for sensing an image of the object resulting from the scan and accumulating information therefrom as an electric signal, apparatus for outputting the signal from the sensing and accumulating apparatus when the scan is complete, and apparatus for detecting the position of the object on the basis of the signal output from the sensing and accumulating apparatus.
REFERENCES:
patent: 4275306 (1981-06-01), Kato et al.
patent: 4311389 (1982-01-01), Fay et al.
patent: 4549084 (1985-10-01), Markle
Canon Kabushiki Kaisha
Westin Edward P.
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