I like to take videos and picture of laser show effects, I have done that for years without any problem.
However I got my brand new LG G2 took one 2 minutes video and ended up with about 30 scattered group of dead pixels on the CCD sensor... never happened with my galaxy S2 or galaxy S3. I was about 10meters from the laser projector, it was not very powerful (only 500mw RGB projector with 30kpps galvos, wide beam (~1cm diameter at 10meters)), there was a lot of fog, there was no direct still laser beam on the ccd, only fast moving patterns, the laser could have been on the ccd no more than a few milliseconds.
Maybe higher megapixel sensors are more sensitive? this is quite worrying, I know many discos that have much stronger lasers than that and I see people take pictures/movies all the time. Also, would direct sunlight burn the sensor as well?
Anyway, I got it exchanged under warranty no question asked...