Laser apparatus and process for cutting paper

Details Laser apparatus and process for cutting paper Laser apparatus and process for cutting paper

1982-04-26

1984-02-07

Albritton, C. L.

Electric heating

Metal heating

By arc

219121LP, 219121LQ, 219121LR, 219121LW, B23K 900

Patent

active

044305486

ABSTRACT:
A non-contact laser engraving apparatus and process for producing laser paper cuts, the apparatus including optics for scanning the laser beam through a condensing optical system having its focus point at the position of a metal mask template, the non-reflected rays passing on to an optical device at a point where all rays of the scanning laser beam are superimposed and there is no apparent movement, the focal length of the optical device being selected so that the template configuration is reimaged on the paper on the other side of the optical device. The optical devices and components may be lenses or mirrors. The process and apparatus is usable with moving paper by motion of the template and paper at the same time at a speed proportional to the ratio of distance between the paper and optical device, and the distance between the optical device and template.

REFERENCES:
patent: 3549733 (1970-12-01), Caddell
patent: 4128752 (1978-12-01), Gravel
patent: 4156124 (1979-05-01), Macken et al.
patent: 4219721 (1980-08-01), Kamen et al.
M. A. Grimm, IBM Technical Disclosure Bulletin, "Optical System for Laser Machining of Narrow Slots", vol. 14, No. 9, Feb. 1972, pp. 2641-2642.

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