Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!hydroplane.cis.ohio-state.edu!ray
From: ray@hydroplane.cis.ohio-state.edu (william c ray)
Newsgroups: comp.graphics
Subject: Re: polarized film?
Message-ID: <65904@tut.cis.ohio-state.edu>
Date: 9 Oct 89 23:32:16 GMT
References: <475@alias.UUCP> <65539@tut.cis.ohio-state.edu> <1989Oct9.200000.29188@sj.ate.slb.com>
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Reply-To: william c ray <ray@cis.ohio-state.edu>
Organization: Ohio State University Computer and Information Science
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someone writes (in regard to using amorphic lenses for 3d polarized
projection instead of synched projectors)

The optics are expensive, and the image is dimmer, but it eliminates the
hassle of keeping two projectors in perfect sync.


Whats so hard about syncing projectors?  link them MECHANICALLY...
either drive them from the same motor, or link the film
transport system...

(I've already done this with some super8 stuff...  My question is,
how do I place the polarizers for maximum effect, and are there sources of
polarizers that do a better job than the standard photographic variety.
I've had very poor luck getting good separation... do I need a special 
screen, polarizers on both lightsource and lens, or what?)

Will Ray