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Attn: Cat owned UFies by chrisP2004-05-11 01:31:51
  Laser Pointer by NoTimeToulouse2004-05-11 02:05:06
    Be carefull, you migth infringe(?) on a patent ! by cokish2006-11-19 12:55:59
      "A beam of invisible light" by TheCatMan 2004-05-11 06:31:01
Is that UV? IR? Presumably it would require some kind of fluorescent backdrop, in which case you'd need UV light since you can only go to lower frequencies with fluorescent materials (iirc - I'm not much of a physicist) and I don't think hand-held UV lasers were even possible in 1995.

Surely it would have been simpler to use an ordinary red laser pointer?
[ Reply ]
        we had a laser pointer at work in ?94 by DragonLady2004-05-11 07:02:09
          they were mostly red/green around then by TheCatMan2004-05-12 01:33:56

 

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