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From: Jevan Pipitone on 30 May 2010 05:20
Can you use the concept of rewritable CDs to make a rewritable plate whose
surface is used to create 3d holograms thus 3d tv. Alternatively, having
tiny rows of colour LCD pixels at different distances from the viewer
(different rows and columns are at different distances) so it is possible to
pick not only the row and column of a pixel but also the distance from the
viewer hence a 3D look.

I'm not sure how good the resolution would be though...


--
http://www.jevan1.com/


From: Jan Panteltje on 30 May 2010 07:30
On a sunny day (Sun, 30 May 2010 19:20:47 +1000) it happened "Jevan Pipitone"
<jp(a)jevan1.com> wrote in <4c022e49$0$11950$c30e37c6(a)exi-reader.telstra.net>:

>Can you use the concept of rewritable CDs to make a rewritable plate whose
>surface is used to create 3d holograms thus 3d tv. Alternatively, having
>tiny rows of colour LCD pixels at different distances from the viewer
>(different rows and columns are at different distances) so it is possible to
>pick not only the row and column of a pixel but also the distance from the
>viewer hence a 3D look.
>
>I'm not sure how good the resolution would be though...

There once existed a TV projection system tha tworked by shooting an electron
beam in vacuum at an oil layer.
'Eidophor'
http://en.wikipedia.org/wiki/Eidophor

Perheps it would be possible to shine a laser (or use several colored
lasers for color) on such an oil plate to reconstruct a calculated hologram
written to the oiled plate.
But you would not want a big machine like that in your livingroom...


>
>--
>http://www.jevan1.com/
>
>
>
From: Paul Cardinale on 30 May 2010 09:56
On May 30, 2:20 am, "Jevan Pipitone" <j...(a)jevan1.com> wrote:
> Can you use the concept of rewritable CDs to make a rewritable plate whose
> surface is used to create 3d holograms thus 3d tv. Alternatively, having
> tiny rows of colour LCD pixels at different distances from the viewer
> (different rows and columns are at different distances) so it is possible to
> pick not only the row and column of a pixel but also the distance from the
> viewer hence a 3D look.
>
> I'm not sure how good the resolution would be though...
>
> --http://www.jevan1.com/

What you're describing is true 3D imaging as opposed to stereoscopic
3D (used in theaters & TV) which only gives the illusion of 3D.
One way to create true 3D is with an ordinary flat display spinning on
its vertical axis with the pixels being modulated in synchrony with
the rotation.
The problem with all true 3D imaging systems is that bandwidth an
complexity are much higher than ordinary TV. Such systems simply
aren't practical for a consumer item.

Paul Cardinale
From: Uncle Al on 30 May 2010 17:30
Jevan Pipitone wrote:
>
> Can you use the concept of rewritable CDs to make a rewritable plate whose
> surface is used to create 3d holograms thus 3d tv.
[snip]

No.

--
Uncle Al
http://www.mazepath.com/uncleal/
(Toxic URL! Unsafe for children and most mammals)
http://www.mazepath.com/uncleal/qz4.htm
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