US 11,812,144 B2
Focus adjustment apparatus and method, and image capturing apparatus
Hideyasu Hongu, Kanagawa (JP); Toshihiko Tomosada, Kanagawa (JP); Motoyuki Asano, Tokyo (JP); and Makoto Yokozeki, Kanagawa (JP)
Assigned to CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed by CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed on Sep. 14, 2021, as Appl. No. 17/475,291.
Claims priority of application No. 2020-157676 (JP), filed on Sep. 18, 2020.
Prior Publication US 2022/0094840 A1, Mar. 24, 2022
Int. Cl. H04N 23/67 (2023.01); G02B 7/28 (2021.01); G03B 13/36 (2021.01); H04N 23/62 (2023.01); H04N 23/611 (2023.01)
CPC H04N 23/67 (2023.01) [G02B 7/282 (2013.01); G03B 13/36 (2013.01); H04N 23/62 (2023.01); H04N 23/611 (2023.01)] 19 Claims
OG exemplary drawing
 
1. A focus adjustment apparatus comprising:
a detection unit that detects one or more main subject candidates which are candidates for a main subject from image signals repeatedly output from an image sensor that performs photoelectric conversion on light that is incident through an imaging optical system based on a predetermined first condition;
a selection unit that selects the main subject from the one or more main subject candidates;
an acquisition unit that acquires operation information of an operation unit for moving a position of a focus lens included in the imaging optical system; and
a focus adjustment unit that controls the focus lens so as to focus on the main subject selected by the selection unit in a case where an autofocus mode is set and the operation unit is not operated,
wherein the selection unit selects the main subject based on an in-focus position of the focus lens and fixes the selected main subject in a case where the operation unit is operated, and
wherein each unit is implemented by one or more processors, circuitry or a combination thereof.