Re: general laser babble... more on laser

[Todd Young <tyoung@wamnet.com>]

Andrei Talalaevskii wrote:

> Some companies may sell a "laser gun protector" but I would think that
> this is simply a piece of cheap plastic pre-cut to match the License
> Plate. I don't think $50 or even more is an adequate price for this. If
> the purpose is to make a car totally "invisible" one might need special
> measures like thicker plastic of some special brand or an  IR source
> mentioned in a previous messages. However, to allow enough time to adjust
> the speed after the detector goes off, a piece of any plastic cut by hand
> and put over the plate will be enough.

My understanding of the front license plate covers, they are clear plastic
(Lexan, whatever) that has cuts or grooves in it (maybe like a Fresnel lens)
to diffuse the laser beam so that the receiver doesn't get decent reception,
i.e. inaccurate speed readout.

--
Todd Young              WAM!NET Inc.
tyoung@wamnet.com       6100 West 110th Street
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