公开(公告)号：US12216324B2

公开(公告)日：2025-02-04

申请号：US17334853

申请日：2021-05-31

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Takahiro Matsukawa ,  Taku Ichikawa

IPC: G02B7/02 ,  G02B7/04

Abstract: A lens barrel 10 comprises a substantially cylindrical first lens group unit 11 that holds a lens L1, and a substantially cylindrical front frame unit 12 that is disposed in a state of being close to the outer peripheral surface side of the substantially cylindrical first lens group unit 11. The first lens group unit 11 has a rectilinear key 11c that protrudes outward in the radial direction on the outer peripheral surface of the lens L1 on the image plane side in the optical axis direction. The front frame unit 12 has an inside diameter that is smaller than the outside diameter of the first lens group unit 11 in the portion where the rectilinear key 11c is provided. The first lens group unit 11 and the front frame unit 12 are formed so that a gap is formed between the outside diameter of the first lens group unit 11 and the inside diameter of the front frame unit 12 at a position opposite the rectilinear key 11c in the radial direction.

公开(公告)号：US10754118B2

公开(公告)日：2020-08-25

申请号：US16284654

申请日：2019-02-25

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Taku Ichikawa

IPC: G02B7/20 ,  G02B7/02

Abstract: A lens barrel 10 comprises a first lens group frame 29, a rotating shaft 30, a plurality of barrier vanes 23a to 26b, an annular barrier sliding frame 28, and an annular stationary frame 27. The plurality of barrier vanes 23a to 26b rotate around the rotating shaft 30, and switch between an open state of exposing the surface of a first lens L1 in an imaging state, and a closed state of covering the surface of the first lens L1 in a collapsed state. The annular barrier sliding frame 28 is disposed on the subject side of the first lens group frame 29, and rotates the plurality of barrier vanes 23a to 26b upon rotating relatively around the optical axis with respect to the first lens group frame 29. The stationary frame 27 is disposed between the plurality of barrier vanes 23a to 26b and the barrier sliding frame 28 and fixed with respect to the first lens group frame 29, and supports the plurality of barrier vanes 23 a to 26b from the opposite side from the subject.

公开(公告)号：US10474008B2

公开(公告)日：2019-11-12

申请号：US15785827

申请日：2017-10-17

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Taku Ichikawa ,  Atsushi Hasegawa ,  Takumi Kuwahara

IPC: G03B17/04 ,  G02B7/02 ,  G03B9/08 ,  G03B17/12

Abstract: A collapsible lens barrel includes: an opening/closing unit (shutter unit) that includes an opening/closing portion (shutter blade) openable and closable along a plane orthogonal to an optical axis to control a light amount, and a maintaining portion (projection) that maintains an opened state of the opening/closing portion; an inner lens disposed closer to an object than the opening/closing unit is; an inner frame that holds the inner lens; an outer lens disposed closer to the object than the inner lens is; an outer frame that holds the outer lens; and a restriction portion that restricts operation of the maintaining portion by restriction applied from the outer frame to the maintaining portion via the inner frame to maintain the opened state of the opening/closing portion when the outer frame and the inner frame are collapsed.