Re: Fog lights

["Bob D'Amato" <Bob.Damato@snetel.com>]

On Thu, 7 Sep 1995, Richard Funnell wrote:

> I would second this.  Amber lights were reportedly used because that color
> was supposed to penetrate the fog better.  Tests I read a long time ago
> determined that there was no real advantage, and that as Phil siad all
> you're doing is heating up the lens.
> 

Actually, this isnt true. (Speaking from many years of laser/optics 
experience) Red is the preferred color for fog, but is illegal on the 
front of cars, where amber is second best with yellow following. White 
reflects off the water too much, where red will not.

Theres a whole lot of math that goes along with it, but I didnt 
understand it then, and I doubt I would today either..  :)

Bob


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