Welcome to European Tribune. It's gone a bit quiet around here these days, but it's still going.
And according to Wikipedia, the stereoscopy is either by having the light polarized by an LCD filter that can switch polarity faster than the frame rate, so that the left and right frames are displayed in alternation, or by displaying the left and right images display at the same time (stacked on top of each other) and having special lenses that split out and polarize the two images in parallel.

The alternation approach works in part because the digital projectors can display at very high frame rates, so that "half the frames for each eye" can still be at a frame rate faster than conventional film.

I've been accused of being a Marxist, yet while Harpo's my favourite, it's Groucho I'm always quoting. Odd, that.

by BruceMcF (agila61 at netscape dot net) on Sun Apr 25th, 2010 at 01:09:23 PM EST
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