I'm looking to design a game where players fire a gun at a target using LASERS or IR. The target only registers a hit when a certain amount of players (say 3) are hitting the target consistantly for 5 seconds. The target has got to be around 6" square. The range will be about 3 meters.
The problem i have with this project is that I'm not sure what I can use for a target? I have looked on this site and found solar panels don't seem to work that well.
Im considering an array of photodiodes/transistors to detect the lasers/IR. But as the target is big i'll need a lot of them!
Any ideas anyone?