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

Claim 15:
16. A multi-scopic lens unit comprising:
a first optical system including a first focus lens;
a second optical system including a second focus lens; and
a driving circuit that moves the first optical system and/or the second optical system in an optical axis direction,
wherein the multi-scopic lens unit is capable of adjusting a difference between focus distances of the first optical system and the second optical system, by moving the first optical system or the second optical system via the driving circuit based on a difference between a first defocus amount of the first optical system and a second defocus amount of the second optical system, and
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 the first optical system, 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 the second optical system.