Re: Re: Chromatek glasses

[T3D Larry Berlin <lberlin@xxxxxxxxx>]

>Date: Fri, 27 Dec 1996 14:06:03 +0800
>From: T3D henry chung  Asks:
>............... snip .....................
>Does anybody know about these glasses and how they work? They are almost
>clear glasses and quite unlike polarised or red-and-blue glasses.
>
>Does anybody heard about ChromaDepth tm 3-D?
>
>Henry Chung
>http://www.pac.com.hk/world/henry/
>

I have a number of pages on my website that are intended for Chroma Depth
viewing and use these glasses. 

The optics are the equivalent of two very thick prisms intended to obtain a
maximum displacement/shift between red and blue. The second prism corrects
the general light path but both magnify the difference between red and blue.
This is directly opposite the strategy used in achromatic optics. The very
thin optics are made of two dissimilar platics which together provide the
equivalent of the much thicker prisms. The eye looking through the special
optics sees the colors displaced horizontally compared to the view from the
other lens which is just clear plastic. The result is that blue appears
behind the computer screen, white, yellow and green are at the depth of the
screen and red is in front of the screen. There is very little gradation
between them except for blue ranging to white (*back* to *screen*). Black
will *stick* to whatever color/depth surrounds it. Other colors separate
into available component colors, especially anything containing red.

There are several versions of these made. One is optimized for computer
displays and there is one available for the opposite color
scheme(Blue=front, red=back). Another is designed to work with printed
colors. Yet another has a different diffraction grating for the other eye
for enhanced laser show experiences.

Happy New Year!  : -)

Larry Berlin

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


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