The poster is confusing Real D's system that uses passive eyewear with the IMAX 3D's system that uses active electronics glasses that are collected at the end of the show.

From what I can find on Infitec online, it looks like they use offset hues of each primary color -- and the eyewear is supposed to isolate one set from the other.

It's like drawing with Magenta-Navy-Lime for one eye, and Crimson-Sapphire-Malachite for the other eye - and the glasses keep each eye from seeing the other eye's color set.

From http://www.military-information-technology.com/print_article.cfm?DocID=990 :

Safety is another important issue in battery development. Most lithium-ion rechargeable batteries use carbon as the cathode and alternate layers of cobalt oxide and lithium as the anode. The exchange of lithium ions between the cathode and anode recharges the battery.

But cobalt oxide is sensitive to heat spikes under high processing demands. Heat spikes or a short inside a cobalt or metal-oxide battery can trigger thermal runaway, which, when caught on fire, feeds itself with its own oxygen.

“If your notebook battery pack had a thermal runaway event, you could throw it to the bottom of a swimming pool and it would still burn at 800 degrees Celsius. Now imagine yourself sitting in a vehicle that has 1,000 of those cobalt batteries with thermal runaway events, and you’d be sitting in the bottom of a crater,” said Joe Lamoreux, the chief operating officer of battery maker Valence Technology.

This is a very good idea. Very simple, yet very effective! It seems so obvious looking at the invention after the fact, but nobody have thought to do this!