On 28/01/09 19:03, James Kanze wrote: > On Jan 26, 8:07 pm, "Gene Kwiecinski"<[email protected]> wrote: > > [...] >> That's why shooting glasses, driving glasses, etc., are yellow-tinted, >> to improve contrast (by blocking blue almost 100%). That's also why >> foglights tend to be tinted yellow (even regular headlights in France, >> iirr, are mandatorily yellow; someone correct me if that changed) >> because that improves contrast in fog, etc. > > The actual motivation for the yellow headlights is because the > French military requested it (in 1936), in order to easily > distinguish between French cars and others. The fact remains > that with modern headlights and filtering techniques, they blind > oncoming drivers significantly less, while not reducing what you > can see. > > The law was abrogated in 1992, in order to comply with EU > regulations; both white and yellow are legal now (and since all > other countries require white, all manufacturers deliver white > on new cars). > > -- > James Kanze (GABI Software) email:[email protected] > Conseils en informatique orientée objet/ > Beratung in objektorientierter Datenverarbeitung > 9 place Sémard, 78210 St.-Cyr-l'École, France, +33 (0)1 30 23 00 34
I'm not sure they all /require/ white: when I looked into the Belgian legislation on the subject (maybe 20 years ago), Belgian cars could have either white or yellow headlights, but they had to be the same tint on both sides. Most Belgian cars have always had white headlights, but in 1955 my father bought a Triumph TR3 which had yellow ones (and it wasn't a second-hand car). Best regards, Tony. -- Mistakes are often the stepping stones to utter failure. --~--~---------~--~----~------------~-------~--~----~ You received this message from the "vim_use" maillist. For more information, visit http://www.vim.org/maillist.php -~----------~----~----~----~------~----~------~--~---
