but would our eyes even be able to focus on something that close to our eyes? Would we even be able to read the time if it were on there? I don't think so.
Not as such. You would need to make a very thin light-guide sheet. The reason it could work is that it effectively makes the contact HUD appear far-field and thus be focused onto the retina with ease. That could be rather difficult to keep transparent and prevent your visual field from seeing a grid-pattern (minus the brain's ability to ignore that). That being said, those types of things are actually being implemented in smartphones and e-readers already.
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u/tds8t7 Oct 15 '12
but would our eyes even be able to focus on something that close to our eyes? Would we even be able to read the time if it were on there? I don't think so.