Good idea, but if the photons go through red, there's nothing left when it gets to the blue glass. For instance, if you have a pair of 3D glasses (first thing with a red filter I thought of) and look at something blue through the red part, it doesn't look pink. It looks black (maybe dark red.) It subtracts, not adds. What would make more sense is to have cyan/magenta/yellow glass. That's the same way printers work. For instance, if you look at something yellow through the "blue" part of a pair of 3D glasses, which is really cyan, it looks green. [_GB] - [RG_] = [_G_]

Ark5
We can use Antb's neons for it

wikku9
why do you always ruin good stuff?
flarn2006
ya know, the light colors are the opposite of paint, so... Gree+Blue=Cyan with light, but with paint Cyan+Yellow=Green

wow that would be awesome becasuse in 43 with all the nwe photon tricks this will allow awesome things such as rgb displays and some PT artists would like it too! +1

duartel
Making new elements is pointless, because we can use ready elements