** Reply to message from Gary Kovach <dearbo@EROLS.COM> on Thu, 12
Nov 1998 19:33:22 -0500

It's a shield to cutoff the direct light from the bulb so that only
the directed light from the reflector can be seen, hence less scatter
to the sides.  If they were going for max efficiency and damn the
expense it would be a fancy computer-calculated reflector itself, to
get the wasted light back into the main beam.

david

> apart and the light (bulb) sticks into a metal thimble which is gun
> metal blue - probably from the heat.   Can anyone shed some light
on how
> these work?  Does the bulb heat the metal thimble enough to give off
> light or is it just a reflector?  I plan on using them on my Vanagon

David Beierl <dbeierl@ibm.net>
401 274-5827 voice, -6349 fax
OS/2 V4, FP7, JVM 1.1.6, JSM 98.6.3