Optics for forming a sharp illuminating line of a laser beam

Details Optics for forming a sharp illuminating line of a laser beam Optics for forming a sharp illuminating line of a laser beam

1996-05-28

1998-02-24

Evans, Geoffrey S.

Electric heating

Metal heating

By arc

B23K 2606, G02B 1308, G02B 2709

Patent

active

057214166

ABSTRACT:
An optical device is described for generating a sharp illuminating line on an illuminating plane from a high-power laser beam. The sharp illuminating line includes long and short axes. The optical device comprises an anamorphic setup of imaging and homogenizing optical systems for the separate imaging and homogenizing of the laser beam in the directions of the long and short axes. For imaging and homogenizing the laser beam in the direction of the short axes, a slit is illuminated homogeneously and the slit is imaged on the illumination plane by reducing optics.

REFERENCES:
patent: 4744615 (1988-05-01), Fan et al.
patent: 4911711 (1990-03-01), Telfair et al.
patent: 5237149 (1993-08-01), Macken
patent: 5296673 (1994-03-01), Smith
patent: 5331466 (1994-07-01), Van Saarloos
patent: 5414559 (1995-05-01), Burghardt et al.
patent: 5601733 (1997-02-01), Partlo
patent: 5609780 (1997-03-01), Freedenberg et al.

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