公开(公告)号：US20240168253A1

公开(公告)日：2024-05-23

申请号：US18388477

申请日：2023-11-09

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Yuichiro KIMOTO ,  Tetsuya MORITA ,  Masayuki SHODAI ,  Naoki YOSHIKAWA ,  Takeshi SAKAKIBARA

IPC: G02B7/02

CPC classification number: G02B7/022

Abstract: A lens barrel 10 comprises a fourth lens group unit 20, cam pins 22a and 22b, a biasing pin 23, a cutout portion C1, a substantially cylindrical first lens group unit 13, and a plurality of rectilinear guide portions 25. The fourth lens group unit 20 has a substantially cylindrical main body portion 21 that holds a lens L4a, etc. The cam pins 22a and 22b are provided to the fourth lens group unit 20, protrude in the radial direction, and engage in the cam grooves 14b of the cam frame 14. The biasing pin 23 is provided to the fourth lens group unit 20, is supported so as to bias in the radial direction, and engages in the cam groove 14b. The cutout portion C1 is formed by cutting out the portion of the main body portion 21 of the fourth lens group unit 20 opposite the biasing pin 23 in the direction of the optical axis. The main body portion 21 of the fourth lens group unit 20 is provided continuously in the circumferential direction, from the biasing pin 23 to the cam pins 22a and 22b.

公开(公告)号：US20240241340A1

公开(公告)日：2024-07-18

申请号：US18534582

申请日：2023-12-09

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Yuichiro KIMOTO ,  Tetsuya MORITA ,  Masayuki SHODAI ,  Naoki YOSHIKAWA ,  Takeshi SAKAKIBARA

IPC: G02B7/02 ,  G02B1/11

CPC classification number: G02B7/025 ,  G02B1/11

Abstract: A first lens group unit 20 includes a lens L2, a blacked-out portion L2b, a lens frame 22, and an injection hole 21a. The lens L2 has a thrust surface L2d that intersects the direction of the optical axis AX, a thrust surface L2c on the opposite side from the thrust surface L2d, and an edge surface L2e that connects the thrust surface L2d and the thrust surface L2c. The blacked-out portion L2b is provided to an edge surface L2e of the lens L2, and suppresses the reflection of light incident on the lens L2 on the edge surface L2e. The lens frame 22 has a substantially cylindrical shape, and holds the lens L2, which is inserted from the thrust surface L2d side along the cylindrical inner peripheral surface 22a. The injection hole 21a is used to bond the lens L2 and the lens frame 22 with an adhesive applied to the thrust surface L2c.

公开(公告)号：US20240219812A1

公开(公告)日：2024-07-04

申请号：US17793677

申请日：2021-12-17

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Fumio SHINANO ,  Tetsuya MORITA ,  Yuichiro KIMOTO

IPC: G03B13/32

CPC classification number: G03B13/32

Abstract: A zoom ring drive device (10) comprises a guide unit (11), a guide unit (14), a drive gear (21), and a DC motor (23). The guide unit (11) slides in the optical axis direction of a lens (L1) included in the lens barrel (32). The guide unit (14) is provided to the guide unit (11) and slides in a direction perpendicular to the optical axis direction. The drive gear (21) is provided in the guide unit (14) at a position where the drive gear comes into contact with a ring gear (25) wound around a zoom ring (33), and rotates in a state of being in contact with the ring gear (25) to rotate the zoom ring (33). The DC motor (23) is provided to the guide unit (14) and rotationally drives the drive gear (21).