公开(公告)号：US20170176711A1

公开(公告)日：2017-06-22

申请号：US15451613

申请日：2017-03-07

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Keishi IWASAKI ,  Tetsuya UNO ,  Takumi KUWAHARA

IPC: G02B7/09 ,  G02B5/00 ,  G02B7/02

CPC classification number: G02B7/09 ,  G02B5/005 ,  G02B5/208 ,  G02B7/021 ,  G02B7/08 ,  G03B11/00 ,  G03B11/045 ,  G03B17/04 ,  H04N5/2254

Abstract: The lens barrel includes an imaging optical system comprising at least a first lens, a plate-shaped protection glass which is disposed closer to a subject side than the first lens and has light transmission, and an annular ring part provided on the outer circumferential edge of the surface of the protection glass facing the subject side.