I was under the belief that the use of glass on hedlights was deemed to be a liability in accidents. It has since been discontinued by manufacturers on the recommendations of transport reports and legislations - I believe. The fact that a form of plastic has been substituted was probably decided to be the more prudent move. The early 90's headlights did suffer from yellowing and hazing and I believe that that sort of issue is not present in todays headlight covers. I can only imagine that it's due in part to the improvements made in the last 15 or so years in the plastic and composite industry. You as an engineer should know that. If glass is so much better, why is it no longer a common use in the auto industry? I believe glass to be a lot more durable than plastic in some regards but then again, plastics won't shatter like glass either. Like I mentioned before. Andy is offering an option that can improve our lighting situation. I would think there would have been more purposefull questions WRT the lighting aspect rather than getting hung up on the material used. As long as it does the job and is durable enough, who gives a ***** what it's made of or what it's called. The bottom line is lighting improvement. Why is that so difficult for people to grasp?
07:30:39 03/11/09
