9 Mar
2007
9 Mar
'07
11:32 a.m.
At 12:01 PM 3/9/2007 -0500, you wrote:
And thusly were the wise words spake by David Griffith
It was somewhere about 1980 that I built the basic high-power car-audio
speaker laser deflector. Mine used plastic ball-socket pivots and aluminum
stock as levers, to pivot a speaker horizontally. The laser goes from that
mirror to another one driven vertically by a second speaker.
I have a Real Laser (plasma tube NeHe) to drive it. Still works.
Haven't we all built something like that at one time or another?
-----
481. [Humor] Shouldn't the Psychic Friends call you? --heard on the radio
--... ...-- -.. . -. ----. --.- --.- -...
tpeters at nospam.mixcom.com (remove "nospam") N9QQB (amateur radio)
"HEY YOU" (loud shouting) WEB: http://www.mixweb.com/tpeters
43? 7' 17.2" N by 88? 6' 28.9" W, Elevation 815', Grid Square
EN53wc
WAN/LAN/Telcom Analyst, Tech Writer, MCP, CCNA, Registered Linux User 385531
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.
I would rather do vector graphics.. :) I have seen plans on the where
you use the voice coils from two old hard drives with mirrors stuck to
them to bounce the laser onto a wall..