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Subject : Re: [Anaglyphs] new yellow/blue glasse's
From : Claus Krarup
To : anaglyphs.yahoogroups.com
Date : Fri, 17 Mar 2006 19:23:51 +0100
I am not sure, but I think that the filter curves for both filters are
described in the patents. Jean-Marc descriebed perfect in his earlier
mail why the blue filter seems so dark. It is strange, because the
amber and the blue filter has the same transmission.
Cheers
Claus
Wojtek Rychlik skrev:
Jean-Marc,
It would be fun to experiment with new yellow/blue glasses.
It seems to be a difficult task though. The problem is how we
perceive blue: it is a cold color and it is less comfortable than
warm red (more people are comfortable with red/cyan light disparity).
Lighter blue would have been ideal, but unfortunately other colors
trickle down through light blue filters making ghosting inevitable.
So, a dark blue must be used. Combining this with yellow it makes
drastic light disparity and viewing discomfort (extreme, because
we're most sensitive to yellow). To offset this one must make the
yellow darker: add gray to it. So, we're ending up on ColorCode-type
set of filters. So I wonder whether just dimming the yellow filter is
the patent infringement? If it is, we can't improve anything in this
field for the next 15 years or so.
Cheers,
Wojtek
On Mar 17, 2006, at 8:13 AM, Jean-Marc Hénault wrote:
> On my side I will try also to found better filters. I have here
> "SpaceSpex" yellow/blue glasses made by my friend
> Michael Stark... the blue filter is more clear but show more
ghost
> and the yellow to replace amber color also.
> I received also from a China glasses fabric and orange/blue
plastic
> glasses.... not good.
> The best for moment are ColorCode but may be with help of all of
> you... could we found better filters...
>
> Sincerely,
>
> Jean-Marc Hénault
>
.
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