Large Rear Projection Questions

[P3D <BD3D@xxxxxxxxxx>]

Here's a topic that I don't recall being discussed, although I'm
sure that more than a few on this list may be interested. I'm
hoping that this vast repository of knowledge that is Photo-3d
holds the answers to my questions.

What is required for large rear-projection stereo?  I'm thinking of
60" x 60" or so.  The reason I ask is that I like to walk right up
to the screen to examine details in my slides or sometimes just to
experience the BIG image (some of those edge-of-the-gorge types
recently discussed, for instance) and of course many times I
interfere with the light. (This is at home of course.  It would be
a bit rude at a show, wouldn't it?)  What if I could rear-project
the image onto some sort of glass?  Then it would be like having
this really cool window that I could look into (or out of,
depending on your point of view).

Since devices such as the TDC Project-or-View exist, I know that
rear-projection stereo is possible, although I admit never having
seen any of these in use. Is this a polarized system? Can a regular
stereo projector be used with the right screen to rear-project?

If this were possible, what kind of improvements or compromises
might I face compared to the silver screen?  I suppose I would need
to use lower wattage bulbs due to the direct light?

It would seem that as the projectionist I may have to do a little
bit more walking to get around front to indulge my tastes, but that
would be a small sacrifice.  Besides, I could always use a mirror
like Shilo Teshima suggested and bounce the light back to a screen
right in front of me.  :-)

Any help would be greatly appreciated.

Best regards,
Bill Davis


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