We are mfg of amusement games. We need to design a prize sensor that can detect small objects (.250x1.00") in a 15"x15" prize chute using IR emitter and detector LED's. Must be able to detect in various light conditions including sun light and fluorescent light. Supply voltage 5-12 vdc. We have some other mfg designs as a guild. We have also produced a prototype which has some issues(see attached) The light beam angle may need to be adjusted ??? Keywords: Game