US 12,443,004 B2
Optical apparatus and image pickup apparatus
Yuusuke Hirai, Saitama (JP); and Yuma Iwasaki, Tochigi (JP)
Assigned to CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed by CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed on Aug. 31, 2022, as Appl. No. 17/900,550.
Claims priority of application No. 2021-145089 (JP), filed on Sep. 7, 2021.
Prior Publication US 2023/0071481 A1, Mar. 9, 2023
Int. Cl. G02B 7/02 (2021.01); H04N 23/55 (2023.01)
CPC G02B 7/021 (2013.01) [G02B 7/022 (2013.01); H04N 23/55 (2023.01)] 11 Claims
OG exemplary drawing
 
1. An optical apparatus comprising:
a fixed barrel;
a movable barrel disposed inside the fixed barrel and holding an optical element;
a mechanism configured to move the movable barrel along an optical axis by rotation of the movable barrel around the optical axis; and
an operating member disposed through the fixed barrel and rotationally operated,
wherein the operating member comprises a rotating shaft and an engaging portion eccentric from the rotating shaft, the rotating shaft being rotated with the operating member being rotationally operated, the engaging portion being engaged with a guide formed in the movable barrel along the optical axis;
at least a part of the engaging portion is located outside the rotating shaft in a direction orthogonal to the rotating shaft;
rotation of the operating member causes the engaging portion to slide on the guide, the movable barrel to rotate around the optical axis, and the mechanism to move the movable barrel along the optical axis, and
at least a part of the engaging portion is located, in the direction orthogonal to the rotating shaft, outside a flange portion of the operating member which is disposed on an outer surface of the fixed barrel.