Radiant energy – Photocells; circuits and apparatus – Photocell controls its own optical systems
Patent
1986-04-28
1988-01-19
Nelms, David C.
Radiant energy
Photocells; circuits and apparatus
Photocell controls its own optical systems
318577, G05B 100
Patent
active
047206292
ABSTRACT:
In an optical pattern follower, of the rotating scanning type, in which co-ordinated drive signals are produced by sampling two co-ordinate sinusoids, an adjustable kerf off-set is provided by selectably delaying the sampling pulse.
REFERENCES:
patent: Re30938 (1982-05-01), Kallen
patent: 4396832 (1983-08-01), Henderson
Nelms David C.
Oldham E. H.
Seo Chung
Westinghouse Canada Inc.
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