Tag Archives: efficiency

New Pro Polaroid 3D Glasses [Updated]

We have asked Polaroid for answers to the following questions about their newly announced “Pro” line of 3D glasses. We’ll fill in the blanks when the answers arrive. We meet with them on Tuesday, 13 September at IBC. The Press Release closes this article.

What is the light transmission spec for these specs? 

What is the polarization efficiency?

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Optical Efficiency in Digital Cinema Projectors

Exhibition Logo

There is a thread in digital cinema marketing that claims it to be a green technology. This concept is largely based on the environmental savings of transporting a digitized movie via hard disk from the distributor to exhibitor, compared to what it takes to move several film reels the same distance. It is an even more striking comparison when one uses satellite and/or a fibre network, which companies like Aquiva and Smartjog can do for their customers.

The transport of the entertainment material is not the only environmental cost of the movie business nor is it the only positive result. Eliminating film, which utilizes many noxious chemicals and elements, is also a considerable benefit.

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4K; And Then There Were Two

4K DLP chips are shipping today, according to the Texas Instruments Press Release. The three authorized OEMs, Barco, Christie and NEC will now be able to ship the digital cinema products which their catalogs now call 4K ready.

There is some data missing from the PR. For example, Barco is advertising that there are two sizes of 4K chips expected, one to match the 0.98″ C range projectors, and one to retrofit the 1.2″ B range projectors that they offer in their product line. (Christie and NEC only mention retrofitting the 1.2″ chip versions.) We believe that what TI has just released is the 1.38″ 4K chip, which will retrofit into the three 1.2″ positions in the larger Christie (CP2220 and CP2230) and NEC projectors and the B Series Barco projectors. [This has been confirmed–Editor]

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