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Author
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Topic: Screen frame idea
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John Walsh
Film God
![](http://www.film-tech.com/ubbmembers/168.jpg)
Posts: 2490
From: Connecticut, USA, Earth, Milky Way
Registered: Oct 1999
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posted 01-17-2004 08:42 AM
I think what everyone means is the screen would 'bow' probably in the lower center something like this:
![-](http://www.film-tech.com/cgi-bin/showpic.cgi?dir=uploads0503&file=screen7.jpg)
The Cinespheres is an IMAX screen, right? I wasn't thinking of something that big; only about 35-45 ft wide.
I'm guessing of course, but I was thinking that any 'bowing' problem would be more than offset by the overall reduced distortion. We did a theater recently where we followed the Schneider suggestions for curving the screen. The result was just what you'd expect; at one place a projected line looks straight, but above/below that point, the line curves up/down. So, I was trying to get rid of that, too. A CAD system would probably be useful to determine how to fit a rectangular screen on a curved frame.
EDIT: Sorry about the image size; I sampled it to 200 pixles and tried to reload a smaller one, but it's still big....
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