Laser beam machining apparatus

Details Laser beam machining apparatus Laser beam machining apparatus

1996-11-05

1999-08-03

Metjahic, Safet

Photocopying

Projection printing and copying cameras

Illumination systems or details

372 19, G03B 2754, H01S 3098

Patent

active

059332182

ABSTRACT:
A laser beam machining apparatus including an image-transfer optical system having a mask inserted in an optical path between a laser oscillator and a workpiece, and a lens for reducing and forming an image of the mask on a processing surface; a focusing optical system; a drive unit for selecting one of the image-transfer optical system and the focusing optical system; and a numerical controller for controlling the image-transfer optical system, the focusing optical system, and the drive unit, wherein one of the image-transfer optical system and the focusing optical system is selected in correspondence with the diameter and depth of a hole to be processed.

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patent: 5698120 (1997-12-01), Kurosawa et al.
"Solid-State Laser Engineering" Springer-Verlag, 1992 pp. 174-180.
"Engineering Optics" Springer-Verlag, 1985, pp. 145-164.
J.W.Hardy, "Active Optics: A New Technology for the Control of Light" Proc. IEEE66, 651-697 Jun. 1978).

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