Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10.2 9/3/84; site aluxe.UUCP Path: utzoo!watmath!clyde!burl!ulysses!mhuxj!aluxz!aluxp!aluxe!2141smh From: 2141smh@aluxe.UUCP (henning) Newsgroups: net.auto Subject: Re: re: Re: Three Questions Message-ID: <453@aluxe.UUCP> Date: Sat, 20-Oct-84 21:44:46 EDT Article-I.D.: aluxe.453 Posted: Sat Oct 20 21:44:46 1984 Date-Received: Sun, 21-Oct-84 15:35:02 EDT References: <3925@decwrl.UUCP> Organization: AT&T Bell Laboratories, Allentown, PA Lines: 18 **** **** From the keys of Steve Henning, AT&T Bell Labs, Reading, PA aluxe!2141smh > The color of the lens does not make it a fog light, the design of the lens > does. Fog lights spread the light instead of concentrating it in a single > beam as driving lights do. Just point your car at your garage door and turn > on your lights. You'll see that the fog lights throw a very wide and low > beam on the wall, regardless of their color. It is a fact that monochromatic light gives you better resolution. That's why that is what is used to make the chips in your computers. Second, the wide angle is because in fog you can't see very far, so you have to see more of what is close to you. Third, the lower the lights are placed on your car the better they work since the problem is not illumination but reflection of light by the fog between your eyes and where you are looking. That is why truckers have fog lights under their bumpers. Also if you have yellow fog lights, the white glare from you regular headlights hitting the fog won't interfere too much with the yellow image.