Canon Patents

Patent: Multi Layer AF Sensor

This site contains affiliate links to products and services. We may receive a commission for purchases made through these links.

Another autofocus related patent has appeared from Canon. This time in the form of a foveon style multilayer AF sensor.

Patent Publication No. 2015-37217

  • Published 2015.2.23
  • Filing date 2013.8.12

Canon patent

  • AF sensor
  • In the depth direction, I comprises a first layer, the second layer, the photoelectric conversion portion of the third layer
  • The second layer is for monitoring, detecting the amount of light that is received in real-time, to control the accumulation time
  • The third layer in a bright environment, the dark environment so that the use of the first layer, sensitivity can be switched
  • Furthermore, in a dark environment is used by adding the first and third layers

Source: [Egami]

Comments are closed.