How Virtual Laser Keyboards Work

Fuller, John. "How Virtual Laser Keyboards Work" 05 February 2009. HowStuffWorks.com. <http://electronics.howstuffworks.com/gadgets/travel/virtual-laser-keyboards.htm> 08 June 2012.

I saw something about these years ago and at that time thought that I would have seen more of them around by now. In fact I have not hardly seen them at all. I thought that we would seem them used with cell phone and computers and even now they would be great for tablets, but they are not out there. Maybe because they require a specific type of surface to be projected onto. From the article I couldn't tell if they were cost effective or not, and that maybe a reason why I have not seen more of them out there.