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In Eye Projection?

Joined
Jan 7, 2012
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Hey folks!
I thought about this topic for a long time now and want to hear other peoples opinions (and wisdom of course ;)).
companies like brother (the air scouter) have made different products that can project pictures right in to your eye. Brother stated that they use laser diodes to project an RGB image.
Now what I was asking myself is: where is the difference to a normal laser projector?
Scale of course and optics. but how could they probably have made this? what are the difficulties in producing a small projector that sits on your glasses and projects straight in to your eye? I find this topic to be really interesting so... any ideas or opinions? :)
 


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