P3D Re: active/passive viewers

[fj834@xxxxxxxxxxxxxxxxxxxxx (Dr. George A. Themelis)]

>>Did you decide on these word choices or is that an industry
>standard terminology?
>
>"The selection technique .. refers to the means for passing the
>appropriate image to the appropriate eye and blocking the inappropriate
>image from the inappropriate eye. Two techniques have been developed for
>doing this: passive means using polarizing glasses, and the active
>technique in which the viewer wears eyewear incorporating liquid crystal
>shutters."
>
>Lipton, Lenny: "The Crystal Eyes Handbook." (c) StereoGraphics Corp.,
>1991. p. 43


Lenny Lipton is a respected name but still don't like the terminology.
The mechanically passive polarizing glasses are active optically.

-- George Themelis


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