It looks like the potential for visual pollution
from micro projectors just keeps on increasing by the day, with Nippon Signal now following up Mint's just-announced VGA projector
with an even smaller SVGA projector of its own. This one measures a mere 90 x 55 x 20 millimeters, and it makes use of lasers and a pair of MEMS scanners to project an image, unlike some other tiny projectors
that rely on a more conventional LED light source. Unfortunately, this particular projector still seems to be in the prototype stage, and it doesn't look like Nippon Signal is planning to bring it to market itself, although it does seem that the technology could be commercialized "soon."
[Via About Projectors