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From: hrs@houxb.UUCP (H.SILBIGER)
Newsgroups: net.followup
Subject: Re: Dipped Headlights
Message-ID: <256@houxb.UUCP>
Date: Wed, 15-Feb-84 13:52:06 EST
Article-I.D.: houxb.256
Posted: Wed Feb 15 13:52:06 1984
Date-Received: Thu, 16-Feb-84 02:46:24 EST
References: fortune.2524
Lines: 12

In France, both high and low beams are yellow.
This is based on the assumption that the eye is more sensitive
to yellow, and also that there is less scattering in fog
with yellow.
For that reason fog lights are often yellow.
Studies have found that the loss of light output due to
the yellow filtering actually produces poorer vision
with the yellow light.
with the yellow light.
The French are continung to use yellow 1) to show they
are different, and 2) to identify non-French cars in
France, at which they can then flash their high beams.