MEDELMA@CMS.CC.WAYNE.EDU (Michael Edelman) (02/07/91)
From: Michael Edelman <MEDELMA@CMS.CC.WAYNE.EDU>
As mentioned, many of the CCDs used in camcorders and other consumer
products have excellent infrared sensitivity. One that's cheap and
easy to modify is the Fisher-Price kiddy camcorder, often sold for
less than $100.
If you open up said camcorder and unscrew the lens assembly you'll notice
a small square filter; this is an IR blocking filter. Prying it off
makes the camera tremendously IR sensitive, although you've more-or-less
trashed the daytime usefulness. It's reverseable, though.
I've seen the same module used in the Fisher-Price in other products, such
as the Lionel Trains camera.
--mike edelman
muppet labs medelma@cms.cc.wayne.edu medelma@waynest1rats@ihlpm.att.com (David Woo) (02/08/91)
From: rats@ihlpm.att.com (David Woo) In <1991Feb7.014350.2587@cbnews.att.com> Mike Edelman states: |As mentioned, many of the CCDs used in camcorders and other consumer |products have excellent infrared sensitivity. One that's cheap and |easy to modify is the Fisher-Price kiddy camcorder, often sold for |less than $100. In the olden days of television, the photocathodes of the imaging tubes were S-1, just like the infrared image convertor tubes used. Due to the fact that some dyestuffs are transparent to IR radiation, it was claimed some embarassing details came out before the IR blocking filters were used in imaging clothed people. ------------- I noticed strike footage from an A-10 shown on the news yesterday. As this was a night strike, just what type of NV gear does an A-10 use? ------------- Stealth Aircraft: Yale Jay Lubkin showed many years ago that by setting up an array of microphones and processers, you could not only determine that aircraft were approaching, you could identify the type of aircraft via it's acoustical emissions! As a matter of fact, AT&T Bell Labs uses a phased array acoustical microphone at some locations. ------------- The latest Popular Science has a very interesting article on the armoring of civilian vehicles against terrorist attacks. It mentions a type of armor plating, 1/8" thick that can stop a .44MAG slug, among other things.
v059l49z@ubvmsb.cc.buffalo.edu (Paul C Stacy) (02/11/91)
From: v059l49z@ubvmsb.cc.buffalo.edu (Paul C Stacy) In article <1991Feb8.014547.18852@cbnews.att.com>, rats@ihlpm.att.com (David Woo) writes... >In <1991Feb7.014350.2587@cbnews.att.com> Mike Edelman states: > >I noticed strike footage from an A-10 shown on the news yesterday. As >this was a night strike, just what type of NV gear does an A-10 use? The A-10 uses the LANTIRN pod system as does the F-15 and F-16 (possibly others as well.) One pod contains a terrain-following radar and other navigational goodies while another carries an IR sensor, laser designator, and other aiming goodies. As I understand it, they were distributed to F-15's first, then F-16's, and finally A-10's (and not all have them). There might have been more aquisitions since my books were written. Paul "Joe Friday" Stacy