NetNews Usenet Archive 1992 #27/NN_1992_27.iso/spool/rec/autos/26917

Internet Message Format | 1992-11-16 | 1.7 KB

Path: sparky!uunet!lhdsy1!nntpserver.chevron.com!usho21.hou281.chevron.com!hhtra
From: [e-mail] (T.M.Haddock)
Newsgroups: rec.autos
Subject: Re: LIDAR Demo on TV
Message-ID: <[e-mail]>
Date: 16 Nov 92 18:23:03 GMT
References: <[e-mail]> <[e-mail]>
Sender: [e-mail] (USENET News System)
Organization: Chevron
Lines: 22

In article <[e-mail]>, [e-mail] (Wayne Smith) writes:
|> In article <[e-mail]> [e-mail] (T.M.Haddock) writes:
|> > The only disadvantage shown was the 2-3 second lock-up
|> > time and the difficulty keeping the sighting bullseye
|> > on the vechile.  Even at distances just over 300 feet,
|> > the dot was dancing all over the car.

|> Is the dot actually hitting the car?  Is the dot used for aiming, with
|> the real beam coming from a more powerful IR laser source?  So I guess they
|> shoot 2 beams at you?  How can they see the dot at 100 yards (a scope?)

 There is a military aircraft-style HUD (Head Up Display) on the top
 of that laser gun, the other has a rifle-style scope.  It may or may
 not provided any magnification.  Anyway, a little bullseye-type dot
 is projected up onto the HUD and when you look through the HUD, the
 dot "appears" to be on the target.  The laser beam is being sent to
 the same place the dot "appears" to be.  Therfore, if the dot is
 "dancing" then the laser beam is "dancing" too.  Go to a local gun
 shop and look at their laser aiming devices.  They use "dots" the
 same way.

 TRAVIS