Electric heating – Metal heating – By arc
Patent
1988-07-14
1989-11-07
Albritton, C. L.
Electric heating
Metal heating
By arc
21912171, B23K 2618
Patent
active
048794511
ABSTRACT:
A filter screen for a video display terminal is formed by ablating a sheet of plastic material with an excimer laser beam to produce desired apertures in the sheet spaced by webs of the sheet material. The filter screen formed in this manner can produce clean cut apertures in the sheet material and the retained material or webs between the apertures can be reduced to small dimensions because of the control of the laser beam. The sheet material can be coated for optical reflection control and for radiation control either before or after formation as the filter screen. The filter screen and the method for its formation is disclosed.
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Materials Processing with Excimer Lasers, by Darcy Poulin, et al., presented at ICALEO '87 Nov. 11, 1987.
Albritton C. L.
Sun-Flex Company, Inc.
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