公开(公告)号：US20190025539A1

公开(公告)日：2019-01-24

申请号：US16038280

申请日：2018-07-18

申请人： CANON KABUSHIKI KAISHA

发明人： Takeru Yuri

IPC分类号： G02B7/08 ,  G02B7/10

CPC分类号： G02B7/08 ,  G02B7/021 ,  G02B7/04 ,  G02B7/10 ,  G03B3/00 ,  G03B5/00 ,  G03B17/12

摘要： Provided is a lens apparatus, including: a fixed barrel; a first optical element; a rotary barrel configured to be rotated relative to the fixed barrel about an optical axis of the first optical element and move the first optical element; a contact member including rolling members respectively arranged at positions about the optical axis, the rolling members being into contact with the rotary barrel, the contact member being restricted in rotation relative to the fixed barrel about the optical axis; a pressing member pressing the contact member toward the rotary barrel; a second optical element being different from the first optical element; and an operation member configured to be rotated relative to the fixed barrel about the optical axis and move the second optical element, wherein a space, through which the operation member passes, is formed between two of the rolling elements in a circumference of the contact member.

公开(公告)号：US10802241B2

公开(公告)日：2020-10-13

申请号：US16038280

申请日：2018-07-18

申请人： CANON KABUSHIKI KAISHA

发明人： Takeru Yuri

IPC分类号： G02B7/08 ,  G02B7/10 ,  G02B7/02 ,  G02B7/04 ,  G03B5/00 ,  G03B17/12 ,  G03B3/00

摘要： A lens apparatus includes a fixed barrel, a first optical element, a rotary barrel configured to be rotated relative to the fixed barrel about an optical axis of the first optical element and move the first optical element; a contact member including rolling members respectively arranged at positions about the optical axis. The rolling members are in contact with the rotary barrel. The contact member is restricted in rotation relative to the fixed barrel about the optical axis. A pressing member presses the contact member toward the rotary barrel. A second optical element is different from the first optical element. An operation member is configured to be rotated relative to the fixed barrel about the optical axis and move the second optical element. A space, through which the operation member passes, is formed between two of the rolling elements in a circumference of the contact member.