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P3D Imax Silver Screen

Andrew Woods wrote:
>As I mentioned in a previous message, I saw the new Panasonic IMAX 3D
>theatre when I was in Sydney recently.  They were showing Across the Sea
>of Time and Nutcracker.  This theatre uses the bulky Liquid Crystal Shutter
>Glasses with inbuilt PSE (Personal Sound Environment) speakers.  One thing
>that confused me was that the projection screen appeared to be a silvered
>screen - this isn't needed for the frame sequential systems.  

You are correct that the silvered screen wasn't necessary for the frame
sequential glasses; it was probably used to increase the brightness of
the picture, since the gain on a silver screen is usually at least twice
that of flat white screen material.

                                    Derek Gee


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