Craig J Birrittella

US Patent:

6713713, Mar 30, 2004

Filed:

Dec 18, 2002

Appl. No.:

10/323151

Inventors:

Scott Caldwell - Fairport NY
Craig Birrittella - Rochester NY

Assignee:

Branson Ultrasonics Corporation - Danbury CT

International Classification:

B23K 2600

US Classification:

21912163, 21912183

Abstract:

A laser welding lens assembly for welding a first article to a second article at a weld zone includes a laser source outputting a laser beam. An optical fiber is operably coupled to the laser source to receive and transmit the laser beam. A lens is then positioned to receive the laser beam from the optical fiber. The lens includes a contoured face that is shaped to refract the laser beam to produce a generally uniform temperature profile across the weld zone.