I need to make my own reflector for a 3200 lumen hid divelite I am creating but how do I determine the Degree of throw(as in 6degree or 12 degree) When I am making it in cad where is it that I measure from. Thanks for the help guys.
Maybe he dives in mud or just wants to do a lot of video work. Besides 35W-50W HID dive lights are very common so I don't think his idea is odd.
Utahdeepdiver, I'm not an optical engineer so I won't be able to answer your question. Typically designing then finding a company who makes reflectors to your specifications would be a costly and timely process. If you were going to undertake something like this you'd want to start with reflector cad software at ground level.