AMC Dolby Cinema PWM Test

It would appear the laser projectors at Dolby Cinema use PWM to control brightness. See the flashing that occurs with a camera at 240FPS slow motion recording on my iPhone 11.

[@Beamber]

Did you get headaches

[@jvonengeln]

I don’t get headaches from PWM, I get severe eye strain. My eyes feel sunburnt the days after I use a display with PWM including iPhone 13 - and I feel a bit dizzy when watching the PWM display.