8 Mar
2007
8 Mar
'07
8:02 p.m.
At 05:05 PM 3/8/2007 -0800, you wrote:
Somehow I got subscribed to an optics catalog. This
got me to thinking.
How hard would it be to cause a laser beam to sweep with the speed and
accuracy to be a substitute for a CRT? The upshot? Take an old terminal
with nasty screen burn. Cut off the gun end of the bottle, clean off the
old phosphor. Apply new phosphor of some kind, then mount the laser
rasteriser where the old gun was. Projecting raster images on the side of
a building would be fun too.
You'd have to make sure you can modulate the beam. After all, if you're
going to draw unconnected shapes with it, you have to be able to turn the
beam off. Now you're talking about a very low duty cycle. How do you get
enough brightness to see it? Sounds like a pretty powerful laser.
-----
619. [Alcohol] Why is American beer served cold? So you can tell it from
urine.
--David Moulton
--... ...-- -.. . -. ----. --.- --.- -...
tpeters at nospam.mixcom.com (remove "nospam") N9QQB (amateur radio)
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WAN/LAN/Telcom Analyst, Tech Writer, MCP, CCNA, Registered Linux User 385531