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Author
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Topic: Sneak Preview
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Phil Hill
I love my cootie bug

Posts: 7595
From: Hollywood, CA USA
Registered: Mar 2000
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posted 04-11-2003 02:18 AM
Brad said: "You cannot take and distribute pictures of the IMAX projector mechanism itself."
Are you serious? I have many pics of IMAX booths, projectors, and details of the mechanisms.
The rolling-loop projector patents are public knowledge and are available on the patent websites. IMAX does have proprietary theatre specifications, sound, and show-control systems that there are many pics of, but I understand no details of the software code! HAhahahaha
I am very familiar with IMAX patents and have copies of them….and how their system works.
I hate to say how much time I spent in court and in making depositions regarding lawsuits filed against Ummmm...me and the "competition" by IMAX. All parties had to bare their "privates" in order to see if there was a basis for the suits. In the end, the courts threw out ALL the lawsuits as being "frivolous and without merit."
When I spec'd and designed "our" systems, I made sure it did not infringe on ANY IMAX proprietary technology.
I am dismayed at, and don't understand, your statement about posting the mechanism pics are not allowed…
I REALLY do not think someone would be able to manufacture a knock-off projector from pictures. Trust me, there is WAY much more to deal with in terms of "special" know-how and "tricks" to make it all work!
>>> Phil
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Brad Miller
Administrator

Posts: 17775
From: Plano, TX (36.2 miles NW of Rockwall)
Registered: May 99
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posted 04-11-2003 04:20 AM
No, there has been no harassment at all from IMAX. If a company doesn't want something particular shown and they are polite about it, I have no problem complying with their request fully. I know the front of the projectors are something IMAX doesn't want shown, so when I go into an IMAX booth, I don't even take the camera over there and like I said above, I delete any submissions that I feel "reveal" too much. (It's those people who automatically assume that they must get an army of attorneys to write a book of threats and be complete A-holes that deserve a little thrown back at them! )
Actually in the 4+ years the Picture Warehouse has been online, there have only been three requests to have a picture removed. One was understandable, but the other two were for really weird reasons that didn't make much sense, but hey, no problem...and away it went.
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John Pytlak
Film God

Posts: 9987
From: Rochester, NY 14650-1922
Registered: Jan 2000
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posted 04-11-2003 07:52 AM
Several SMPTE papers on the basic "rolling loop" concept, and Bill Shaw's work on developing it into the IMAX projector:
"The Rolling Loop -- A New Concept of Film Transport" by P. R. W. Jones, January 1968 SMPTE Journal, pages 21-23
"Film Dynamics of a Rolling-Loop Film-Transport System" by William C. Shaw, September 1970 SMPTE Journal, pages 778-782
"New Large-Screen and Multi-Image Motion-Picture System" by William C. Shaw, September 1970 SMPTE Journal, pages 782-787
Bill Shaw decided on the 15-perf pull-across after discussions with Kodak's Rollie Zavada, who noted that optimum steadiness would be achieved by using an integral multiple of the 5-perforation repeat used for perforating 65mm and 70mm film (principle of "cancellation").
As Phil Hill noted, while the concept is simple, the "Devil is in the Details" and these systems are a marvel of superb engineering.
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