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There's nothing to stop them from running digital and film projectors side-by-side, which is exactly what a lot of theaters are doing right now.
Digital projectors are convenient but good ones aren't cheap and the lamp life is not terribly good either. Considering that some luxury cars are now using high-power white LEDs for headlights instead of Halogen or discharge lamps, that might be the tech breakthrough the industry has been needing.
LEDS offer no heat, no UV, no IR, constant color temperature, instant control of brightness for superior blacks, long life, and with mass production, low cost. You could even have separate banks of red, green and blue LEDs to eliminate the first color splitter prism.
So how's that 4K RED Cinema projector coming Jim? :wink:
High power LED's may not radiate heat, but they sure do conduct heat.. which means you need a big ass heatsink to dissipate that heat... as Heat, as many people do not realize, is like kryptonite to LED's... they will fail extremely fast if exposed to it for too long.