Newsgroups: sci.electronics Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!zaphod.mps.ohio-state.edu!magnus.acs.ohio-state.edu!usenet.ins.cwru.edu!cwsys3!dkazdan From: dkazdan@cwsys3.cwru.edu (David Kazdan) Subject: Re: Infra-Red Laser police radar guns... Message-ID: <1991Jun12.124225.10103@usenet.ins.cwru.edu> Sender: news@usenet.ins.cwru.edu Nntp-Posting-Host: cwsys3.esys.cwru.edu Organization: Dept of Systems Engineering, Case Western Reserve U., Cleveland, OH References: <3343@ria.ccs.uwo.ca> Date: Wed, 12 Jun 91 12:42:25 GMT Lines: 15 In article <3343@ria.ccs.uwo.ca> wlsmith@valve.heart.rri.uwo.ca (Wayne Smith) writes: >There's been some talk lately about these new police `radar' guns on rec.autos >(I'm not sure if the term radar applies here). Anyways, what I want >to know (from you laser experts) are: > >The reflectivity of cars (ie modern cars with lots of front and rear >reflective plastic lenses vs older cars without them) I notice that the new Ohio license plates are retro-reflective--I wonder if this is in preparation for laser speed traps? David Kazdan, AD8Y dkazdan@cwsys3.cwru.edu