Project HoloLens’ key achievement—realistic holograms—works by tricking your brain into seeing light as matter. “Ultimately, you know, you perceive the world because of light,” Kipman explains. “If I could magically turn the debugger on, we’d see photons bouncing throughout this world. Eventually they hit the back of your eyes, and through that, you reason about what the world is. You essentially hallucinate the world, or you see what your mind wants you to see.”
To create Project HoloLens’ images, light particles bounce around millions of times in the so-called light engine of the device. Then the photons enter the goggles’ two lenses, where they ricochet between layers of blue, green and red glass before they reach the back of your eye. “When you get the light to be at the exact angle,” Kipman tells me, “that’s where all the magic comes in.”
Thirty minutes later, after we’ve looked at another prototype and some more concept videos and talked about the importance of developers (you always have to talk about the importance of developers when launching a new product these days), I get to sample that magic. Kipman walks me across a courtyard and through the side door of a building that houses a secret basement lab. Each of the rooms has been outfitted as a scenario to test Project HoloLens.
http://www.wired.com/2015/01/microsoft-hands-on/
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