Ultra-long projection media

Mxsmanic

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Mar 19, 2002, 10:17:21 AM3/19/02

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Is there a way to produce permanent, colorfast images that can be
projected continuously for hours or days without fading? I'm thinking
of something like front-projection screens for scenic backgrounds and
similar special effects situations, where a photograph must be
continuously projected for extremely long periods. Is there a way to
transfer an image to, say, colored glass or something that will not fade
even after months of exposure to high-intensity light? If not, how is
this thing done in practice?

It's kind of like attractions in amusement parks. For example, in the
Pirates of the Caribbean or Haunted Mansion in Disneyland, it is clear
that many special effects are looped films or something. But what kind
of films are they using that can run continuously in a short loop for
months or years at a time?

john walton

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Mar 19, 2002, 12:44:44 PM3/19/02

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You can buy transparent Iflochrome, Fuji and Kodak materials.

The windows at Chartres seem to have done OK in terms of color fastness.
Their only enemy is automotive exhaust (that's why you can't park close
anymore ;)

"Mxsmanic" <mxsm...@hotmail.com> wrote in message
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Gene A. Townsend

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Mar 19, 2002, 3:31:02 PM3/19/02

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On Tue, 19 Mar 2002 15:17:21 GMT, "Mxsmanic" <mxsm...@hotmail.com>
wrote:

By far the best way to do this would be with a digital image
projector. The lamps fade eventually, but can be replaced. The
images themselves do not change with time, since they digital in
nature, and therefore easily entered, archived, etc. Resolutions of
1200 by 1800 are becoming fairly economical.

Regards,

Gene A. Townsend
>

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Mxsmanic

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Mar 19, 2002, 3:35:12 PM3/19/02

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"john walton" <jdwa...@comcast.net> wrote in message
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> The windows at Chartres seem to have done OK
> in terms of color fastness.

Actually, they are being rebuilt, one by one. One of the rose windows
was finished just recently, after years of work, and it now looks like
it did originally; and it is amazing to see the effect of truly
transparent stained glass when the sun streams through it--no wonder
cathedral builders were so fond of it.

Anyway, stained glass windows don't contain continuous tone
representations of photographic reality, so they are easier to produce.
I was thinking, though, that maybe by selectively etching several layers
of nearly opaque colored glass, one could reproduce a photo in a way
that would never, ever fade, even after years of arc light shining
through it.

What is Duratrans, anyway?

Mike King

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Mar 21, 2002, 9:45:12 AM3/21/02

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I'm not sure that the LCD's wouldn't fade with time if continually exposed
to non varying high intensity light.

--
darkroommike
......................
"Gene A. Townsend" <wi...@dakotacom.net> wrote in message
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