Reggie
Member
Specifically the Par64 Parcan. Was asked when they first came into use and can their invention be traced back to any one company or person. I probably could find an answer in one of my lighting books, but an internet reference (if one exists) would be preferred. This is what I've found so far: http://eshop.steinigke.de/out/pictu.../en/licht/History of the EUROLITE PAR-can.pdf