View Full Version : Building my own parabolic reflector--technical questions.
Updated: See further down for design and construction details
Hebdizzle
09-25-2003, 4:26 PM
If you have AH supply reflectors and you are happy with them, I would try to make them as exact to them as you can! I have the same bulbs but I need to build a canopy before I utalize them, so if you could post your design and/or canopy please do so! I also know many other people are discovering and starting to use these bulbs.
They're great :)
Aaron
AH's reflector won't work as a direct copy due to major radial geometry differences between the PC linear lights and the spiral compact.
I'm working with some wireframes now with Rhino. When I get home, I can load up Flamingo and render the reflectivities. Don't know why I didn't think of doing that before! ;)
slipknottin
09-25-2003, 8:43 PM
I would attempt to copy a reflector for MH bulbs.
http://www.marinedepot.com/a_lt_mh_spider_info.asp?CartId=
ok, here is the schematic. As you can see, when modeling as a point source radiation, there is very very little restrike on a NON point source light.
(the missing top angle is also 157°)
http://members.dslextreme.com/users/louieg/reflector.jpg
http://members.dslextreme.com/users/louieg/reflection.jpg
Here are some pictures. Be sure to see my reflector comparison thread to see how it worked
(sorry for the blurr)
Just showing the reflectivity of the polished aluminum
http://members.dslextreme.com/users/louieg/reflector/6.jpg
here is my prototype reflector (made with scrap). The one I am using are a little longer
http://members.dslextreme.com/users/louieg/reflector/7.jpg