Canon Patent for new Auto-Focus System for Mirrorless Cameras and DSLR with Translucent Mirror

Egami (translated) spotted a patent filed by Canon that appears to refer to a new auto-focus technology to implement in mirrorless cameras and in cameras with a translucent mirror (like the Sony A99).

• Patent Publication No. 2015-22264
  • Published 2015.2.2
  • Filing date 2013.7.23
• Canon patent
  • Phase difference detection method to be received by the AF sensor can be reflected incident light from the imaging lens
  • The phase difference detection by the image plane phase difference AF
  • The phase difference detection by external light AF sensor