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» Film-Tech Forum   » Community   » Film-Yak   » D-150 Super Curvulon lens

   
Author Topic: D-150 Super Curvulon lens
Christian Appelt
Master Film Handler

Posts: 498
From: Frankfurt, Germany
Registered: Dec 2001


 - posted 02-12-2007 01:59 PM      Profile for Christian Appelt   Email Christian Appelt   Send New Private Message       Edit/Delete Post 
Is there anybody who knows the number of the U.S. patent for the Dimension-150 projection lens?
It has been years that I held such a lens in my hand, and if I remember it correctly, there was a small engraving with the patent number. I'm just checking all available patents regarding cinema widescreen processes, but couldn't find the D-150 lens construction basics.

I'd really appreciate your help.

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Mark Lensenmayer
Phenomenal Film Handler

Posts: 1535
From: Upper Arlington, OH
Registered: Sep 1999


 - posted 02-12-2007 07:39 PM      Profile for Mark Lensenmayer   Email Mark Lensenmayer   Send New Private Message       Edit/Delete Post 
D-150 Patent by Richard Vetter

D-150 Screen by Richard Vetter

I did not find a specific patent on the lens.

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Floyd Justin Newton
Jedi Master Film Handler

Posts: 559
From: Phoenix, Arizona, USA
Registered: Jun 2002


 - posted 02-12-2007 09:51 PM      Profile for Floyd Justin Newton   Email Floyd Justin Newton   Send New Private Message       Edit/Delete Post 
...it's on the first link. [Smile]

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Mark Gulbrandsen
Film God

Posts: 14413
From: Bountiful, Utah
Registered: Jun 99


 - posted 02-13-2007 07:42 PM      Profile for Mark Gulbrandsen   Email Mark Gulbrandsen   Send New Private Message       Edit/Delete Post 
I have a very nice Curvulon here if you want photos. Just let me know.

Mark

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Thomas Hauerslev
Master Film Handler

Posts: 357
From: Copenhagen, Denmark
Registered: Aug 2000


 - posted 02-14-2007 01:44 AM      Profile for Thomas Hauerslev   Author's Homepage   Email Thomas Hauerslev   Send New Private Message       Edit/Delete Post 
The lens

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Christian Appelt
Master Film Handler

Posts: 498
From: Frankfurt, Germany
Registered: Dec 2001


 - posted 02-14-2007 01:40 PM      Profile for Christian Appelt   Email Christian Appelt   Send New Private Message       Edit/Delete Post 
Thanks, the patent link was just what I was looking for. [Cool]
I was under the impression that there was an own patent for the D-150 projection lens, and strange enough, I couldn't locate this patent although I did a search on Dr. Vetter in the US patent office database.

That was really helpful! [thumbsup] [thumbsup] [thumbsup]

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