US 12,242,128 B2
Lens barrel and image pickup apparatus
Shinichiro Harada, Kanagawa (JP)
Assigned to CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed by CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed on Dec. 21, 2021, as Appl. No. 17/558,150.
Claims priority of application No. 2020-215210 (JP), filed on Dec. 24, 2020.
Prior Publication US 2022/0206241 A1, Jun. 30, 2022
Int. Cl. G02B 7/02 (2021.01); G02B 5/00 (2006.01)
CPC G02B 7/021 (2013.01) [G02B 5/005 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A lens barrel comprising:
a first lens holding portion that holds a first lens; and
a second lens holding portion that holds a second lens disposed further toward an image plane side than the first lens,
wherein the outer diameter of the first lens is larger than the outer diameter of the second lens,
wherein a plurality of through-holes along an optical axis direction of the first lens and the second lens is provided in the second lens holding portion, and
wherein the first lens holding portion includes a plurality of protrusions arranged so as to overlap the plurality of through-holes if viewed from an object side along the optical axis direction,
wherein a first light shielding member for covering the plurality of through-holes is attached to the second lens holding portion.