If you are near sighted, I suppose you have glasses, to figure out what's happening just try to look at the reflexions on the convex (exterior) side of your glasses, and you'll see you will manage to see a clear image much nearer than usual.
2) If it were just the tiny rectangle, wouldn't they be very inconvenient? I mean, I would have to look up constantly, instead of having image projected on my field of view. Pretty tiresome in the longer run. Plus, the "screen" would be too tiny, even this close to the eye.
I know the demo video was just CG, but it did suggest that the image would be projected across the whole field of view. (Well, the "main" part at least - i.e. whatever your typical glasses cover.)
So I'm really hoping this tiny rectangle is just a reflector / prism that projects the picture on glass lenses or the eye itself. Otherwise it's just not good enough.
(And I disagree this would obstruct your normal vision. The projected image would be semi transparent and it would affect just one eye.)
It does seem like that lens/prism/screen is doing something clever though, as it appears to be too close to the eye to focus on - but who knows?
I think if we want them to demo the actual product and show us what it really does, we should start telling Brin and the rest that we don't believe there is a real product.
Why should we believe that anyway unless they demo what it can do? That marketing video doesn't prove anything. It probably isn't anything like that actually.
http://www.konicaminolta.com/about/research/core_technology/...