05925271 is referenced by 86 patents and cites 23 patents.

The invention relates to a device for laser beam shaping, and in particular to a device for laser beam surface machining. The device includes at least one stationary beam-shaping mirror and at least one rotary mirror that is rotatably supported about a rotational axis and can be selectively driven for rotation. As viewed in the direction of propagation of the laser beam, the at least one static beam shaping mirror is disposed first, followed by the at least one rotary mirror. A perpendicular to a beam deflecting surface of the rotary mirror is inclined at a particular angle relative to the rotational axis by a tapered disc. The tapered disc is fastened to the side of the rotary mirror remote from the laser beam to provide the desired angle of inclination, and the beam deflecting surface of the rotary mirror may be made smooth. One of the stationary and rotary mirrors is configured so that the resulting outline of the beam on the surface to be treated includes an ellipse.

Title
Laser beam shaping device and process including a rotating mirror
Application Number
8/687570
Publication Number
5925271
Application Date
August 9, 1996
Publication Date
July 20, 1999
Inventor
Rudiger Arnold Gnann
Ravensburg
DE
Lothar Morgenthal
Dresden
DE
Dieter Pollack
Dresden
DE
Agent
Greenblum & Bernstein
Assignee
Karl H Arnold
DE
Fraunhofer Gesellschaft zur Forderung der angewandten Forschung e V
DE
IPC
B23K 26/10
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