SL3d, focusing of eye

[P3D Gabriel Jacob <jacob@xxxxxxxxxxxxxx>]

Peter Abrahams writes

>I once asked a friend who teaches at a school of optometry, 'what's some
>interesting work in your field lately?'  He told me that some research has
>shown that the eye uses chromatic aberration to cue the ocular muscles for
>increased or decreased accomodation.  I have no citation for this. There is
>other work I have heard of that details how the  eye has difficulty focusing
>in monochromatic light.
>How might this work? (Speculation:) Since blue refracts more than red, the
>blue fringes on the image would move or snap to focus more dramatically than
>the 'main' image.  Or: The near object would be more refracted in the eye &
>have more fringing.
>

Sounds to me like ChromaDepth 3d to me. I think its the same technology
and has been known for a while and is not new. What is relatively new is
the production of cheap to manufacture lenses or prisms to take advantage
of this chromatic aberration. It really works but even here you need two
eyes to see the 3d depth even thou it uses the principle of refraction
and in theory it would sound like it should work with one eye.
Check out the ChromaDepth site at
http://www.earthchannel.com/chromatk.htm#Border
I think Larry has some stuff on Chromadepth on his site also at
http://www.sonic.net/~lberlin/
There was some discussion about this technology awhile back here in P3D.

Gabriel 


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