Method and apparatus for marking a pattern on an article with a

Details Method and apparatus for marking a pattern on an article with a Method and apparatus for marking a pattern on an article with a

1986-11-25

1988-07-19

Goldberg, E. A.

Recorders

Printing, dotting, or punching marker

Ink transfer support or moving means

21912167, C01D 942

Patent

active

047588489

ABSTRACT:
In a method and apparatus for marking a pattern on an article with a laser, a device for producing a mask pattern in accordance with an electro-optical effect is utilized so that any reflection of laser energy off of the mask pattern is avoided. Further, laser energy not utilized for the marking of the pattern is fed back to a stage previous to the mask pattern stage. Accordingly, the energy efficiency of laser usage is increased and parts used therein is not damaged by undesirable reflection of laser beams.

REFERENCES:
patent: 4013466 (1977-03-01), Klaiber
patent: 4358659 (1982-11-01), Spohnheimer
patent: 4559546 (1985-12-01), Yip
patent: 4586053 (1986-04-01), Hughes
patent: 4609566 (1986-09-01), Hongo et al.

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