Okay, I saw this laser: well an arragment of 3 laser that form what I guess is called a seven color laser. I can't seem to find a simple explanation on how they work. I orginnaly thought that it was an arragment of red, green, and blue lasers that where joined by 2 beam splitters( I think that's they are called) and then the power of each laser was changed to create different colors, but after seeing a picture of one I'm not donates it's that simple......can somebody give me a simple explanation.....I'm sorry if this is a stupid question but this is the only place I think I can get an answer.