公开(公告)号：US11953820B2

公开(公告)日：2024-04-09

申请号：US16802472

申请日：2020-02-26

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Toshiyuki Nakada ,  Tetsuya Uno ,  Satoshi Fukuda

IPC: G03B9/06 ,  G02B7/02 ,  G03B17/42

CPC classification number: G03B9/06 ,  G02B7/021 ,  G02B7/026 ,  G03B17/425

Abstract: An aperture unit includes a base plate, a cover, a plurality of aperture blades, a drive ring, and protrusions. The aperture blades are disposed between the base plate and the cover, and adjust the amount of light passing through by varying the size of an opening. The drive ring is disposed between the base plate and the cover, and is rotationally driven when the aperture blades are opened and closed. The protrusions are provided to the drive ring and the cover, respectively, and support the aperture blades in the direction of suppressing upward warpage of the aperture blades in a state in which the aperture blades move in the direction of reducing the size of the opening.

公开(公告)号：US11561455B2

公开(公告)日：2023-01-24

申请号：US16770154

申请日：2018-12-13

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Tetsuya Uno ,  Satoshi Fukuda

IPC: G03B9/06 ,  H04N5/225

Abstract: An aperture unit (20) comprises an aperture cover (22), an aperture base (27), and a light shielding portion (24). The aperture cover (22) has an opening (22a) through which light passes. The aperture base (27) is disposed on the downstream side of the aperture cover (22) in the light incidence direction, and has an opening (27a) through which light passes. The light shielding portion (24) is disposed between the aperture cover (22) and the aperture base (27), and has an opening (24d) through which the light that passed through the opening (22a) passes, and a plurality of opaque aperture stop blades (24a, 24b, 24c) that are formed from a polyimide resin and vary the size of the opening (24d).