Electric heating – Metal heating – By arc
Patent
1983-09-06
1985-08-06
Albritton, C. L.
Electric heating
Metal heating
By arc
219121LT, 350403, B23K 2600
Patent
active
045338132
ABSTRACT:
An apparatus for applying optical energy to selectively remove material carried upon a substrate, preferably in substantially parallel lanes of material-free areas, which apparatus comprises an optical generator for generating optical energy in a primary beam, partitioning devices for dividing the primary beam into a plurality of derivative beams, reflective devices for reflecting each of the derivative beams to form a plurality of working beams which impact the substrate, focusing lenses for focusing each of the plurality of working beams upon the substrate, and transport means for transporting the substrate in a direction transverse of the plurality of working beams to effect continuous removal of material in substantially parallel lanes from the substrate by the working beams. In the preferred embodiment of the apparatus, phase retarders are utilized to shift the vector orientation of selected of the derivative beams in a manner whereby each of the working beams is of substantially equal intensity, a beam expander is used for diffusing the primary beam to reduce energy concentration upon optical elements of the apparatus. The lens assemblies are configured to focus the working beams upon the substrate in a substantially elliptical pattern, the major axis of which pattern is substantially aligned with the direction of transport of the substrate, and evacuating assemblies are associated with each working beam to evacuate removed material to preclude deposition of removed material upon the lens assemblies as well as to preclude impairment of focusing of the working beams upon the substrate.
REFERENCES:
patent: 2976764 (1961-03-01), Hyde et al.
patent: 3626141 (1971-12-01), Daly
patent: 3704997 (1972-12-01), Smith
patent: 3778585 (1973-12-01), Mallozzi et al.
patent: 3941973 (1976-03-01), Luck, Jr. et al.
patent: 4015221 (1977-03-01), Dalton
patent: 4081654 (1978-03-01), Mracek
patent: 4307282 (1981-12-01), Gappa
patent: 4322600 (1982-03-01), Crahay
A. W. Mueller, IBM Technical Disclosure Bulletin, "Laser Formation of Disks Using a Beamsplitter", vol. 22, No. 10, pp. 4723; 4724, Mar. 1980.
Flair Henry J.
Padgitt Howard R.
Rayburn Charles C.
Albritton C. L.
Buckman Thomas W.
Illinois Tool Works Inc.
Mondul Donald D.
LandOfFree
Optical selective demetallization apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Optical selective demetallization apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical selective demetallization apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-514145