US 12,332,499 B2
Lens barrel and imaging device
Osamu Gomibuchi, Tokyo (JP); Makoto Horikoshi, Tokyo (JP); Mizuki Wayu, Tokyo (JP); Tsuneo Watanabe, Tokyo (JP); and Kenichi Kitano, Tokyo (JP)
Assigned to NIKON CORPORATION, Tokyo (JP)
Filed by NIKON CORPORATION, Tokyo (JP)
Filed on Apr. 9, 2024, as Appl. No. 18/630,026.
Application 18/630,026 is a continuation of application No. 17/430,486, granted, now 11,982,868, previously published as PCT/JP2019/049636, filed on Dec. 18, 2019.
Claims priority of application No. 2019-030092 (JP), filed on Feb. 22, 2019.
Prior Publication US 2024/0255727 A1, Aug. 1, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. G02B 7/10 (2021.01); G03B 17/12 (2021.01)
CPC G02B 7/10 (2013.01) [G03B 17/12 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A lens barrel, comprising:
a moving tube that moves along an optical axis when changing a focal length;
a first driving part provided to the moving tube;
a first lens that relatively moves along the optical axis with respect to the moving tube by the first driving part;
a second driving part provided to the moving tube; and
a second lens that relatively moves along the optical axis with respect to the moving tube by the second driving part, and that is arranged closer to an image surface side than the first lens, wherein
a moving distance of the second lens with respect to the moving tube, in a case of changing a focal length to a second focal length in a first state in which the second lens is arranged closest to the image surface side at a first focal length, is smaller than a moving distance of the second lens with respect to the moving tube, in a case of changing a focal length to the second focal length in a second state in which the second lens is arranged closer to a subject side at the first focal length than in the first state.