Newsgroups: sci.electronics
Path: utzoo!henry
From: henry@utzoo.uucp (Henry Spencer)
Subject: Re: the laser speed measuring device
Message-ID: <1989Nov24.183214.2144@utzoo.uucp>
Organization: U of Toronto Zoology
References: <89325.164006BHB3@PSUVM.BITNET> <1517@nosc.NOSC.MIL> <1989Nov23.163650.27209@utzoo.uucp> <1254@marlin.NOSC.MIL>
Date: Fri, 24 Nov 89 18:32:14 GMT

In article <1254@marlin.NOSC.MIL> grabhorn@marlin.nosc.mil.UUCP (Steven W. Grabhorn) writes:
>Does anyone have any idea what type of damage this instrument might 
>inflict on the eyes of drivers approaching such a "speed trap"??

Probably none, either through using low enough power or through using an
"eye-safe" wavelength.  The idea that all lasers are dangerous to your
eyesight is a good rule of thumb for safety when working with them but
is not literally true.
-- 
That's not a joke, that's      |     Henry Spencer at U of Toronto Zoology
NASA.  -Nick Szabo             | uunet!attcan!utzoo!henry henry@zoo.toronto.edu