High resolution laser beam delivery apparatus

Details High resolution laser beam delivery apparatus High resolution laser beam delivery apparatus

2006-06-13

2006-06-13

Evans, Geoffrey S. (Department: 1725)

Electric heating

Metal heating

By arc

C219S121780, C219S121800

Reexamination Certificate

active

07060934

ABSTRACT:
A laser material processing system and method focus a laser beam to a smaller spot size with a high power density using a movable beam expander to provide high resolution laser beam for engraving and/or cutting. A movable beam focusing assembly containing a beam expanding optics and a beam focusing optics is a part of a motion system providing a high power density focused beam within the material processing area minimizing size and weight of the laser beam positioning optics and avoiding the problems inherent in handling and positioning a larger diameter beam.

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patent: 6175096 (2001-01-01), Nielsen
patent: 6410882 (2002-06-01), Okada
patent: 62-84889 (1987-04-01), None
patent: 2-284787 (1990-11-01), None
patent: 3-32484 (1991-02-01), None
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