Radiant energy – Photocells; circuits and apparatus – Photocell controls its own optical systems
Patent
1982-12-16
1985-10-01
Nelms, David C.
Radiant energy
Photocells; circuits and apparatus
Photocell controls its own optical systems
219121LG, G01J 132
Patent
active
045448396
ABSTRACT:
Laser beam monitoring systems include laser-transparent plates set at an angle to the laser beam passing therethrough and light sensor for detecting light reflected from an object on which the laser beam impinges.
REFERENCES:
patent: 4000391 (1976-12-01), Yeo
patent: 4311389 (1982-01-01), Fay et al.
patent: 4317021 (1982-02-01), Walch et al.
patent: 4406530 (1983-09-01), Hasegawa et al.
patent: 4466739 (1984-08-01), Kasner et al.
Development of Design Support Information for Laser Cutting System-Program Extension, by United Technologies, Oct. 1980.
Laser Cutting System Assessment, Racki et al., Apr. 1981.
Development of Design Support Information for a Laser Cutting System, by United Technologies, Mar. 1980.
Weil Bradley S.
Wetherington, Jr. Grady R.
Gatto Jim
Grant Edwin D.
Hamel Stephen D.
Hightower Judson R.
Nelms David C.
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