Sorry for replying to myself but I forgot to mention the most amazing detail about Schneider's design: the article was also talking about how you can keep the l

Sorry for replying to myself but I forgot to mention the most amazing detail about Schneider's design: the article was also talking about how you can keep the lasers, cooling, power adapters etc -- basically, everything big and noisy -- in a base unit that can be stashed away somewhere on the floor, maybe under the sofa kind of like you can do with subwoofers. The light from the lasers is piped to a projection unit through glass fibre. The projection unit then only consists of the mirrors and some control circuits and thus can be miniaturized down to almost nothing. So no need to hang a big apparatus from the ceiling like you have to do with the current generation of projectors. (I don't remember if this was actually implemented in their 95 prototype or if it was just on the roadmap -- probably the latter.)