3, umbriferous picture dimension
At present major projector can realize 300 inches or so exceed big picture, but because accept the restriction of umbriferous distance, interactive and umbriferous system exceeds big picture very hard through odd projector implementation, perhaps can use through joining together nevertheless short anxious umbriferous the projectile ability that will realize big picture.
Pass the analysis with brief above, believe everybody already the requirement of very clear and interactive umbriferous system to projector, face this kind of numerous projector on the market, the user returns the likelihood is not very clear how should do it, the author chooses a few projector that accord with this kind of requirement for everybody below, choose for everybody.