optical illusions can only work if the viewer is observing from a certain angle...such technology would be useless in wars because you can't expect the enemy to be in their designated area for your trick to werk
the tank's concept is kool though I'm skeptical of how well the "projector system" may actually perform in say Iraq. where sand clogging the air filters of tanks only the least of worries, how do you manage to set up a projector [if I'm reading this right] of a convoy thats moving?
if the tanks stationary, this might actually be worthwhile...
come to thinkof it...
this thread might not be such a bad idea
Invisibility Cloaking Technology Devised