csshih Flashlight Enthusiast Joined Sep 21, 2008 Messages 3,950 Location San Jose, CA Mar 30, 2009 #1 I know that the usual composition of vapor deposited reflectors is a layer of aluminum, but what is underneath the aluminum? Just Curious.
I know that the usual composition of vapor deposited reflectors is a layer of aluminum, but what is underneath the aluminum? Just Curious.