4 ms·Apple patented a way to keep people from filming at concerts and movie theaters6 points by taylorbuley 10y agokentbrew 10y agoInfrared cut-off filter to the rescue: https://en.wikipedia.org/wiki/Infrared_cut-off_filter https://en.wikipedia.org/wiki/Infrared_cut-off_filterbrudgers 10y agoDiscussion of news: https://news.ycombinator.com/item?id=12000574 https://news.ycombinator.com/item?id=12000574