Electric heating – Metal heating – By arc
Reexamination Certificate
2007-11-06
2007-11-06
Evans, Geoffrey S. (Department: 1725)
Electric heating
Metal heating
By arc
C219S121850, C359S334000
Reexamination Certificate
active
10789557
ABSTRACT:
A system for applying a laser beam to work pieces, includes a laser system producing a high power output beam. Target delivery optics are arranged to deliver the output beam to a target work piece. A relay telescope having a telescope focal point is placed in the beam path between the laser system and the target delivery optics. The relay telescope relays an image between an image location near the output of the laser system and an image location near the target delivery optics. A baffle is placed at the telescope focal point between the target delivery optics and the laser system to block reflections from the target in the target delivery optics from returning to the laser system and causing damage.
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Dane C. Brent
Hackel Lloyd A.
Harris Fritz
Evans Geoffrey S.
Haynes Beffel & Wolfeld LLP
Metal Improvement Company, Inc.
The Regents of the University of California
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