360 ring screen - AVS Forum
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post #1 of 13 Old 10-24-2012, 04:36 PM - Thread Starter
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Does anyone know of a DIY 360 ring screen with how to set up the projectors for such an application? Someone help. After contacting some companies it sounds crazy expensive and I think doing it myself would be cheaper. In fact I saw such a setup in Austin Texas at a bar and asked who did the work and they said an employee that use to work there. So I was thinking if a bar person did this why can't I. Help much appreciated .
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post #2 of 13 Old 10-25-2012, 07:06 AM
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Never done it. But typically projectors are mounted vertically about even with the very top of the screen image. So depending on the diameter of the circle and the throw ratio (Distance divided by screen width) of your projectors you would need to mount them on ceiling mounts at the appropriate locations. I do recall seeing a couple of setups (Maybe Disney) where the projectors were mounted in the walls around the circle but that would require some pricey gear with really long throw ratios. One issue is that the optics in consumer projectors are engineered for flat screens and if you shine it on a curved screen it will distort the image. I'm sure there are some lenses that could compensate for the amount of curvature.

Setting up the projectors and screen would be relatively easy. Then you need to deal with sourcing and processing the content for a 360 view.
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post #3 of 13 Old 10-25-2012, 08:37 AM
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What is the source for a 360° screen?
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post #4 of 13 Old 10-25-2012, 09:26 AM
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Quote:
Originally Posted by NickTheGreat View Post

What is the source for a 360° screen?

A 360 degree camera system, storage and playback system

360-degree-camera.jpg

Or if you mean the source of the SCREEN, you just put several curved screens adjacent to each other. Or one really long piece of screen fabric and plan for one seam.
Alternatively you could just build a round drywall room and paint the walls with a screen paint.
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post #5 of 13 Old 10-25-2012, 09:50 AM
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Well I kinda wondered what he'd be showing in the room. I mean, I haven't checked, but I don't recall seeing the 360° Blu Ray section at Best Buy biggrin.gif
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post #6 of 13 Old 10-25-2012, 10:24 AM
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I would imagine that the DIYer would be interested in showing more original content - maybe computer generated graphics to accompany dance music or an art installation.
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post #7 of 13 Old 10-25-2012, 11:56 AM
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Wouldn't two projectors back-to-back in center bottom of transparent screen(s) positioned vertically, each with 45 degree mirrors at top do the trick?
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post #8 of 13 Old 10-25-2012, 12:37 PM - Thread Starter
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this is what im trying to do....
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post #9 of 13 Old 10-25-2012, 12:49 PM
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Bendable displays will be avilable within the next ten years, are you in a hurry?

Under construction: the Larch theater
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post #10 of 13 Old 10-25-2012, 12:56 PM
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Originally Posted by Bluelightning3 View Post


this is what im trying to do....

Looks like they're just using 4 PJs (you can actually see 2 in that picture) projected albeit badly onto a circular screen. I don't see what would be difficult about that unless you actually wanted to avoid the image distortion - clearly the person who set that up didn't care about pincushioning etc.
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post #11 of 13 Old 10-25-2012, 01:02 PM
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check please, I'm going to watch at home.
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post #12 of 13 Old 10-25-2012, 01:13 PM - Thread Starter
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there are different companies that do this but are way beyond my budget
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post #13 of 13 Old 10-25-2012, 02:13 PM
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If that's the effect you're after, you might as well just build a square box instead and set up 4 projectors. That round effect just ruins the image.
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