公开(公告)号：US20230251457A1

公开(公告)日：2023-08-10

申请号：US18166182

申请日：2023-02-08

Applicant: FUJIFILM Corporation

Inventor： Azuchi ENDO ,  Masahiko MIYATA ,  Masahiro HIDESHIMA

IPC: G02B7/10 ,  G02B7/28 ,  H02N2/02 ,  H02N2/14

CPC classification number: G02B7/102 ,  G02B7/282 ,  H02N2/026 ,  H02N2/142 ,  H04N23/672

Abstract: A drive device includes a piezoelectric element, a drive shaft that receives vibration of the piezoelectric element and vibrates along an optical axis direction of a first imaging optical system, an engagement member that is frictionally engaged with the drive shaft and is connected to the first imaging optical system, and a lens controller that controls vibration of the piezoelectric element, in which the first imaging optical system is provided to be movable in a range including at least a first position and a second position, and the lens controller performs control of moving the first imaging optical system from the first position to the second position in a case in which a signal for instructing a power of the drive device to be turned off is received.

公开(公告)号：US20150092283A1

公开(公告)日：2015-04-02

申请号：US14565529

申请日：2014-12-10

Applicant: FUJIFILM Corporation

Inventor： Masahiro HIDESHIMA ,  Tsuyoshi MITARAI ,  Atsushi MISAWA

IPC: G02B7/10 ,  G03B13/32

CPC classification number: G02B7/10 ,  G02B7/04 ,  G03B3/10 ,  G03B13/32 ,  G03B2205/0046

Abstract: An appropriate operation angle (actuation angle) corresponding to a use is obtained by a relatively simple structure.A focus ring 20 is mounted around a focus cam 10. When the focus ring 20 is moved to a front end side, a gear formed in the focus ring 20 meshes with a gear 17 of the focus cam 10 and the rotation of the focus ring 20 is directly transmitted to the focus cam 10. When the focus ring 20 is moved to a rear end side, the gear formed in the focus ring 20 meshes with pinions 15 mounted on the focus cam 10 and the rotation of the focus ring 20 is directly transmitted to the focus cam 10 through the pinions 15. A half of the rotation angle of the focus ring 20 is the same as the rotation angle of the focus cam 10.

Abstract translation: 通过相对简单的结构获得与使用相对应的适当的操作角度（致动角度）。 聚焦环20围绕聚焦凸轮10安装。当聚焦环20移动到前端侧时，形成在聚焦环20中的齿轮与聚焦凸轮10的齿轮17啮合，并且聚焦环的旋转 20直接传递到聚焦凸轮10.当聚焦环20移动到后端侧时，形成在聚焦环20中的齿轮与安装在聚焦凸轮10上的小齿轮15啮合，并且聚焦环20的旋转是 通过小齿轮15直接传递到聚焦凸轮10.聚焦环20的旋转角度的一半与聚焦凸轮10的旋转角度相同。

公开(公告)号：US20250085504A1

公开(公告)日：2025-03-13

申请号：US18815828

申请日：2024-08-26

Applicant: FUJIFILM Corporation

Inventor： Masahiro HIDESHIMA ,  Mitsuhiko OKA

IPC: G02B7/02

Abstract: The lens barrel includes a first frame, a second frame that holds a lens positioned closest to an object side, that is accommodated in the first frame, and of which a position and/or a degree of inclination is adjustable with respect to the first frame, and a third frame that is attached to the first frame and that is disposed between an inner periphery of the first frame and an outer periphery of the second frame as seen from the object side. In the lens barrel, a first portion of the second frame that is positioned closest to the object side in an optical axis direction is disposed between a second portion of the third frame that is positioned closest to the object side and a third portion of the third frame that is positioned closest to an image side.

公开(公告)号：US20230305364A1

公开(公告)日：2023-09-28

申请号：US18187551

申请日：2023-03-21

Applicant: FUJIFILM Corporation

Inventor： Masahiro HIDESHIMA ,  Masahiko MIYATA ,  Shinji OTSUKA ,  Takeya ABE

IPC: G03B13/36 ,  G03B5/02 ,  H02K11/02 ,  H02K11/21 ,  H02K41/035

CPC classification number: G03B13/36 ,  G03B5/02 ,  H02K11/02 ,  H02K11/21 ,  H02K41/0354 ,  G03B2205/0046 ,  G03B2205/0069

Abstract: A drive device includes a magnetic circuit unit including a first yoke, a second yoke, and a first magnet, a magnetic circuit unit including the first yoke, the second yoke, a second magnet, a first coil that is bonded to a focus lens, in which the magnetic circuit units drive the first coil and the focus lens by an electromagnetic force generated in the first coil, the first magnet corresponds to a first movement amount of movement of the focus lens, and the second magnet corresponds to a second movement amount of movement of the focus lens.

公开(公告)号：US20140211030A1

公开(公告)日：2014-07-31

申请号：US14229035

申请日：2014-03-28

Applicant: FUJIFILM Corporation

Inventor： Masahiro HIDESHIMA ,  Atsushi MISAWA ,  Akihiro SUZUKI

IPC: H04N5/232

CPC classification number: H04N5/23287 ,  G02B7/102 ,  G02B27/646 ,  G03B5/00 ,  G03B2205/0015 ,  G03B2205/0023 ,  G03B2205/0046 ,  H04N5/2258 ,  H04N5/23212 ,  H04N5/23219

Abstract: A lens apparatus includes: an optical system which includes a movable lens group, the optical system including a first correction lens group which adjusts an optical performance of the optical system and a second correction lens group which adjusts a center position of an image which is formed by the optical system; and a control unit which controls driving of the first correction lens group so as to correct the change of the optical performance due to movement of the movable lens group based on position information of the movable lens group and controls driving of the second correction lens group so as to correct displacement of the center of an image due to the movement of the movable lens group and the first correction lens group based on position information of the first correction lens group.

Abstract translation: 透镜装置包括：包括可移动透镜组的光学系统，所述光学系统包括调整光学系统的光学性能的第一校正透镜组和调节形成的图像的中心位置的第二校正透镜组 由光学系统; 以及控制单元，其控制第一校正透镜组的驱动，以便基于可移动透镜组的位置信息来校正由于可移动透镜组的移动引起的光学性能的变化，并且控制第二校正透镜组的驱动 以根据第一校正透镜组的位置信息校正由于可移动透镜组和第一校正透镜组的移动引起的图像中心位移。