Sony patent discloses new on sensor phase detection AF technique.

Fast and Reliable AF is one of the key features for the success of the mirrorless NEX cameras. And Egami spotted a new Sony patent that describes an innovative technique where every pixel has on top a polarizer. The patent is in Japanese so let me know if I do a mistake here. But from what I understood the main advantage would be that every pixel would have phase detection ability and that will dramatically improve the quality and speed of the Autofocus. Smart idea if it works!

P.S.: April fools patent ;)