View Single Post
Old 06-19-2020, 11:52 AM   #2 (permalink)
aerohead
Master EcoModder
 
aerohead's Avatar
 
Join Date: Jan 2008
Location: Sanger,Texas,U.S.A.
Posts: 13,032
Thanks: 20,880
Thanked 6,369 Times in 3,955 Posts
would a

optics and electromagnetism were some of my weakest subjects in physics. I'll be useless to you.
The 'bottom' of the parabolic reflector can be a source of light pollution though.
Some of the 'blackout' schemes for headlights in WW-II involved shielding all but the center of the lamp.
__________________
Photobucket album: http://s1271.photobucket.com/albums/jj622/aerohead2/
  Reply With Quote