公开(公告)号：US20220163752A1

公开(公告)日：2022-05-26

申请号：US17421597

申请日：2019-12-23

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Takeshi SAKAKIBARA ,  Makoto UMEDA ,  Naoki YOSHIKAWA ,  Tatsuhiro ENOMOTO ,  Tetsuya MORITA

IPC: G02B7/04 ,  G02B7/02 ,  H02N2/10

Abstract: An optical device actuator comprises a movable frame (33) including a focus lens (L11); a main shaft guide (40); a piezoelectric element (36a); a weight (36b); a fixed frame (30); a guide holding frame (35); and a spring (36c). The piezoelectric element (36a) imparts vibration to a first end (40a) side of the main shaft guide (40). The fixed frame (30) supports the piezoelectric element (36a) and the weight (36b) disposed on the first end (40a) side of the main shaft guide (40). The guide holding frame (35) supports, in a fixed state, the main shaft guide (40) on a second end (40b) side on the opposite side from the first end (40a) side. The spring (36c) is provided on the first end (40a) side of the main shaft guide (40), and presses the piezoelectric element (36a) along the axial direction with respect to the first end (40a) of the main shaft guide (40) via the weight (36b).

公开(公告)号：US20210048682A1

公开(公告)日：2021-02-18

申请号：US16963492

申请日：2019-01-25

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Makoto UMEDA ,  Tetsuya UNO ,  Naoki YOSHIKAWA ,  Takeshi SAKAKIBARA ,  Kenichi MIYAMORI

IPC: G02B27/64 ,  G03B5/00

Abstract: A lens barrel (10) comprises a fixed frame (30), a main shaft guide (40) that is fixed to the fixed frame, a movable frame (33) that moves along the main shaft guide (40), a driver (magnet (32), drive coil (33c)) that moves the movable frame (33) relatively with respect to the fixed frame (30) along the main shaft guide (40), and a vibration imparting unit (36) that imparts vibration to the main shaft guide (40).

公开(公告)号：US20230350275A1

公开(公告)日：2023-11-02

申请号：US18098381

申请日：2023-01-18

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Shuhei AYUKAWA ,  Makoto UMEDA

IPC: G03B17/14 ,  G03B5/00 ,  H02K41/035 ,  H05K1/18

CPC classification number: G03B17/14 ,  G03B5/00 ,  H02K41/0354 ,  H05K1/189 ,  G03B2205/0069

Abstract: The lens drive device comprises a voice coil motor, a focus lens unit 13, a main shaft 15a, an insertion hole 13ba, and a screw 30. The main shaft 15a guides the focus lens unit 13 in its movement in the optical axis direction. The insertion hole 13ba is provided in the focus lens unit 13, and the main shaft 15a is inserted therein. The screw 30 is provided to the focus lens unit 13, and suppresses looseness that occurs between the insertion hole 13ba and the main shaft 15a by being attracted in a specific direction together with the focus lens unit 13 by the magnetic force of the magnet 22 of the voice coil motor 20. The voice coil motor 20 is disposed below the position where the screw 30 is provided in the focus lens unit 13 in the vertical direction.