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P3D Re: IMAX glasses

Michael _ Kaplan says:
>Several years ago I questioned IMAX about the inclusion of polarizers in
>their viewers. (This is obvious as you look through one pair of viewers
>while slowly rotating another.) They said polarizers are used as a back-up
>system in case the LCD sequential viewing system failed. I don't recall,
>however, whether they said polarizers were *added* to the LCD viewers (as
>another layer) or whether the polarization was some kind of LCD default
>setting. 
>
>
>

In order to do LCD you need to polarize.  It is just a side effect..
Unless they were clever both lens are polarized the same way though.

It is how the whole LCD thing works.

Sandman


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