System for marking moving objects by laser beams

Details System for marking moving objects by laser beams System for marking moving objects by laser beams

1990-06-07

1991-06-04

Albritton, C. L.

Electric heating

Metal heating

By arc

36447408, B23K 2600

Patent

active

050216317

ABSTRACT:
A system for marking moving objects by laser beams, in which there is inserted in a beam path extracavity optical deflector comprising a germanium crystal and a transducer which converts radio frequency signals into sound waves which excite the crystal. There is also a series of fixed, different frequency oscillators, an electronic switch and a control unit selecting at all times one of the switches to connect at any time of the oscillators to be transducer. It allows for high speed marking.

REFERENCES:
patent: 4307282 (1981-12-01), Gappa
patent: 4320542 (1983-01-01), Mills et al.
patent: 4323755 (1982-04-01), Nierenberg
patent: 4652722 (1987-03-01), Stone et al.
patent: 4740269 (1988-04-01), Berger et al.
patent: 4791267 (1988-12-01), Yokoyama et al.
patent: 4922077 (1990-05-01), Gordon
patent: 4945204 (1990-07-01), Nakamura et al.

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