So I was walking to my tutor's house when this guy came up to me and asked if I could give him some feed back on a new product his company was testing. Being interested in all things new I agreed, he proceeded by saying that the product was a new kind of ski goggle with a heads up display. I could barely conceal my excitement as I told him that I had read something about this on the internet. As I put them on he then asked me how comfortable the goggles were (they fit very well), once he had written my comments down on his clipboard he pressed a button on the side and I saw a small image appear in my lower field of vision, when I looked straight at it my eyes were not strained at all, and the picture was very crisp and clear. The image itself was not directly projected on the goggles, it came from a small lens in a long thin white box at the bottom of the mask. The whole unit was very light weight and held together well, the HUD unit looked like it could be removed However I think it would be hard to mount it in something other then the goggles.
All in all I found the HUD looked and felt good, it was easy to quickly glance down and read the display while not getting distracted. The picture was crisp and the info easily readable, the best part being all colors were visible and any the picture wasn't really distorted by light. A surprising amount of information was put onto that screen without it looking crowded, (I know this was a functioning prototype because the internal clock was running the whole time).
I can see this technology being used for many many applications, halo armor being one of them (If someone can figure out a good way to mod the device for our purposes) with great reluctance I gave the goggles back to the surveyor and went on with my day normally, save my huge excitement!