Date: Fri, 21 May 2004 18:02:29 -0700 (PDT)
Author: William Beaty
Subject: Re: IR Camera
On Fri, 21 May 2004, Steve Anderson wrote:
> I got one like this at a Big 5 sporting goods store for $150.
I have one of these below; the Weird Sci. Salon bought them during a big
christmas sale at Big-5:
Taking apart the FT-300 night vision IR scope
They supposedly have about 3000x optical gain in the visible range... or
cover the lens with a couple of layers of Congo Blue filter gel to convert
them into IR only. But in a totally dark room they see nothing. The tube
is like a one-stage photomultiplier, there's a focussed electron stream
going from emitter to phosphor (turning the image upside down as it
focuses through a point,) and if you wave a magnet near the thing, the
green image in the eyepiece goes crazy.
Harborfrieght Tools is having a Night Vision sale:
> This device is like those eye-things that SWAT guys wear for night raids on
> TV action shows.
Head mount stereo, fifty bucks off...
(((((((((((((((((( ( ( ( ( (O) ) ) ) ) )))))))))))))))))))
William J. Beaty SCIENCE HOBBYIST website
EE/programmer/sci-exhibits amateur science, hobby projects, sci fair
Seattle, WA 206-789-0775 unusual phenomena, tesla coils, weird sci
From email@example.com Fri May 21 21:08:57 2004