公开(公告)号：US12099253B2

公开(公告)日：2024-09-24

申请号：US17256471

申请日：2019-06-04

申请人： NIKON CORPORATION ,  TOCHIGI NIKON CORPORATION

发明人： Kunihiko Shimizu ,  Satoshi Waizumi ,  Takehiro Koizumi

IPC分类号： G02B7/10 ,  G02B7/02 ,  G02B15/14 ,  G03B17/14

CPC分类号： G02B7/10 ,  G02B7/026 ,  G02B15/14 ,  G03B17/14

摘要： A lens barrel capable of increasing the moving range of a lens includes: a lens retainer frame for holding a lens; a drive unit for driving the lens retainer frame along the optical axis direction; a first cylinder that holds the drive unit and has a cam follower; a second cylinder that has a cam groove for engaging the cam follower; and a bias part for biasing the first cylinder along the optical axis.

公开(公告)号：US11733478B2

公开(公告)日：2023-08-22

申请号：US17019556

申请日：2020-09-14

申请人： NIKON CORPORATION

发明人： Koji Nagaoka ,  Kunihiko Shimizu ,  Teppei Okuyama ,  Noriyasu Kotani ,  Hisanori Togawa

IPC分类号： G02B7/16 ,  G03B5/00 ,  G03B17/14 ,  G03B17/56 ,  G02B27/64 ,  G02B7/02 ,  H04N23/55 ,  H04N23/68 ,  G02B7/10

CPC分类号： G02B7/16 ,  G02B7/021 ,  G02B7/102 ,  G02B27/646 ,  G03B5/00 ,  G03B17/14 ,  G03B17/565 ,  H04N23/55 ,  H04N23/682 ,  H04N23/687 ,  G03B2205/0007 ,  G03B2206/00 ,  G03B2217/005

摘要： A lens barrel is removeably attachable to an image pickup unit, wherein a large amount of shake can be corrected. This lens barrel includes a mounting part that is removeably attachable to an image pickup unit, including: an image forming optical system that forms a subject image for the image pickup unit; a support unit that supports at least a portion of the image forming optical system; and a fixed unit that is disposed outside of the support unit and that is fixed to the mounting unit. The support part is relatively rotatable and moveable with respect to the fixed unit, about at least two axes which are substantially orthogonal to the light axis of the image forming optical system.

公开(公告)号：US10795117B2

公开(公告)日：2020-10-06

申请号：US15769081

申请日：2016-10-24

申请人： NIKON CORPORATION

发明人： Koji Nagaoka ,  Kunihiko Shimizu ,  Teppei Okuyama ,  Noriyasu Kotani ,  Hisanori Togawa

IPC分类号： G02B7/02 ,  G02B7/16 ,  G03B5/00 ,  G03B17/14 ,  G03B17/56 ,  G02B27/64 ,  H04N5/232 ,  G02B7/10 ,  H04N5/225

摘要： A lens barrel is removeably attachable to an image pickup unit, wherein a large amount of shake can be corrected. This lens barrel includes a mounting part that is removeably attachable to an image pickup unit, including: an image forming optical system that forms a subject image for the image pickup unit; a support unit that supports at least a portion of the image forming optical system; and a fixed unit that is disposed outside of the support unit and that is fixed to the mounting unit. The support part is relatively rotatable and moveable with respect to the fixed unit, about at least two axes which are substantially orthogonal to the light axis of the image forming optical system.

公开(公告)号：US10466453B2

公开(公告)日：2019-11-05

申请号：US14694911

申请日：2015-04-23

申请人： NIKON CORPORATION

发明人： Hiroyuki Ishigami ,  Kunihiko Shimizu ,  Akihiko Obama ,  Takuji Hamasaki

IPC分类号： G02B15/16 ,  G02B9/10 ,  G02B9/04 ,  G02B13/18 ,  G02B15/20 ,  G02B15/173 ,  G02B1/11 ,  G02B27/64

摘要： An optical system comprises a first lens group G1 disposed in a most object side and having positive refractive power, a stop member ST disposed at an image side of the first lens group G1, and a second lens group G2 disposed at an image side of the stop member ST. A predetermined conditional expression is satisfied, whereby light beyond the maximum angle of view collected on the focal point position of a most object side lens group having positive refractive power is reduced, so that heat generated by a member in the vicinity of the focal point position is reduced.