Re: Virtual retinal display

[P3D Larry Berlin <lberlin@xxxxxxxxx>]

>>Date: Sun, 24 Nov 1996 01:54:11 -0600
>John R writes:
>
>I'd heard of that sort of thing being expected for the future, but no details.
>That's more than I'd ever heard - thanks for posting it. If it's just two
>pivoting mirrors and no fancy optics, I'd think that all the light would
>go to a single point on the retina if the focus is on the retina. I don't
>see how it could be made to work without sufficiently clever control to shift
>the apparent point of origin to the beam. Also, ideally the beam would always
>pass through the center of the pupil, so changes in pupil dilation wouldn't
>affect it. (Imagine washing a dog on the other side of a fence by spraying
>water through a knothole in the fence - you have to move the nozzle of the
>hose around to cover the entire dog.) Of course the excerpt doesn't specify
>just what motions will be attempted with the mirrors...
>
>That's not a very unique name - there are companies/products named
Date: Mon, 25 Nov 1996 11:34:25 -0600
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>microVision, Microvision, Micro Vision Software, Micro Vision Solutions,
>MicroVision, and so on.
>
>I hope they're successful - if you find out any more, please let us know.


I think I've read of this too. They must be using a minum of three imaging
mirrors for RGB color. They may be using a larger array of mirrors since
they have these things on a microscopic scale. As I remember it the image is
literally painted on the retina which is why it's independent of viewing
other things around you. The tiny laser beams are virtually unaffected by
the range of focal movements by the lens in the eye. The source would also
have to be close to the eye to be effective. (reconstructed from foggy memory)

Larry Berlin

Email: lberlin@xxxxxxxxx
http://www.sonic.net/~lberlin/
http://3dzine.simplenet.com/


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