Re: Chromo stereopsis

[P3D Larry Berlin <lberlin@xxxxxxxxx>]

>Date: Fri, 22 Aug 1997
>From: P3D  Dale Walsh writes:
>...............
>
>	A friend is looking for information on Chromo stereopsis.  Is it the right=
> term?  If so, what does it mean exactly?  Where does it come from?  Who us=
>ed it first?  Etc.
>

Chromagraphics seems to hold a patent on the method. Visit their website for
more information.

http://www.earthchannel.com

I've usually heard the term ChromaDepth applied to this method.

Essentially the glasses use a prism to bend the different colors of light at
different angles. Since that also changes the direction of the light path, a
second prism is added to correct the angle. In the process it doubles the
angle of separation for the colors. The special optical surface has been
created in a thin plastic lens using two types of plastic. The glasses I
have are for viewing computer monitors and have the special lens over the
left eye. The other eye looks through a perfectly clear non-distorting lens.
The result is that colors from the image appear to come from different
places due to the bending. Stereopsis is created by the colors themselves.
Since this is a lot like a diffraction grating, there is a small amount of
blurriness created as a result.

I have several images for that type of glasses on my web pages and a few
sample images that are for freeviewing that simulate the effect created by
the glasses. If you don't have the glasses yet, but want to see what they
do, visit

http://www.sonic.net/~lberlin/new/chromad.html

Larry Berlin

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


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