Patent ID: 11968446
Assignee: CANON KABUSHIKI KAISHA
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 5:
6. A method executed by an apparatus including a sensor capable of generating a signal pair used in focus detection, the method comprising:
detecting a first defocus amount and a second defocus amount, wherein the first defocus amount is detected based on a phase difference between a pair of light fluxes that pass through different exit pupils of a first optical system including a first focus lens, and wherein the second defocus amount is detected based on a phase difference between a pair of light fluxes that pass through different exit pupils of a second optical system including a second focus lens; and
automatically adjusting a drive amount of the first focus lens or the second focus lens based on a difference between the first defocus amount and the second defocus amount.