Film-Tech Forum ARCHIVE: D-150 Super Curvulon lens

This is topic D-150 Super Curvulon lens in forum Film-Yak at Film-Tech Forum ARCHIVE.

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Posted by Christian Appelt (Member # 1067) on 02-12-2007, 01:59 PM:

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.

Posted by Mark Lensenmayer (Member # 134) on 02-12-2007, 07:39 PM:

D-150 Patent by Richard Vetter

D-150 Screen by Richard Vetter

I did not find a specific patent on the lens.

Posted by Floyd Justin Newton (Member # 1316) on 02-12-2007, 09:51 PM:

...it's on the first link. [Smile]

Posted by Mark Gulbrandsen (Member # 72) on 02-13-2007, 07:42 PM:

I have a very nice Curvulon here if you want photos. Just let me know.

Mark

Posted by Thomas Hauerslev (Member # 566) on 02-14-2007, 01:44 AM:

The lens

Posted by Christian Appelt (Member # 1067) on 02-14-2007, 01:40 PM:

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]