Xref: utzoo rec.autos.tech:12457 sci.electronics:9041
Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!mailrus!hellgate.utah.edu!hoosier.utah.edu!mjb
From: mjb%hoosier.utah.edu@cs.utah.edu (Mark Bradakis)
Newsgroups: rec.autos.tech,sci.electronics
Subject: Re: Car headlights
Summary: Sigh
Keywords: lighting
Message-ID: <1989Dec14.204109.18224@hellgate.utah.edu>
Date: 15 Dec 89 03:41:08 GMT
References: <23418@gryphon.COM>
Distribution: usa
Organization: Fat Chance Garage and Brewery
Lines: 16

In article <23418@gryphon.COM> richard@gryphon.COM (Richard Sexton) writes:
 
>Whay are car headlights still crude tungstan filament (appx. 20
>lumens per watt) whenthey could be metal halide (> 100 lumens
>per watt)?

The simple answer is that vehicle lighting is covered by federal regulations.
It is getting better, though, but still...

mjb.



mjb@hoosier.utah.edu

"If I took a rollin' wheel, rolled it ten times 'round..."