Canon Patents

Patent: Improved Sensor Based AF

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A patent showing what appears to be improved sensor based AF has appeared, this one uses some kind of “light field” processing.

Patent Publication No. 2015-161785 (Google Translated)

  • Published 2015.9.7
  • Filing date 2014.2.27
  • The image plane phase difference AF, the light field I comprises a
  • First, it is focusing on the image plane phase difference AF
  • Then, detect the focus from refocus image
  • To determine the driving range from the re-focus information in the case of out-of-focus

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