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公开(公告)号：US20170153446A1
公开(公告)日：2017-06-01
申请号：US15430140
申请日：2017-02-10
Applicant: FUJIFILM Corporation
Inventor： Tsuyoshi MITARAI
CPC classification number: G02B27/0006 , G02B7/04 , G02B7/08 , G03B3/10 , G03B5/00 , G03B2205/0046 , G03B2205/0053 , G03B2217/18
Abstract: There is provided a lens device that prevents dust from entering a space in which a movable lens is moved. A movable lens is moved in the direction of an optical axis. A holding member, which extends in the direction of the optical axis, is formed at an end portion of the movable lens. A magnet is fixed to an end portion of the holding member. A hall IC is disposed in a closed storage space at a position facing the magnet. A signal, which corresponds to the position of the magnet in the direction of the optical axis, is output from the hall IC. Since the hall IC is disposed in the storage space closed by a storage box, the entry of dust, which is caused by the hall IC, into a space in which the movable lens is moved is prevented.
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公开(公告)号：US20190072760A1
公开(公告)日：2019-03-07
申请号：US16179381
申请日：2018-11-02
Applicant: FUJIFILM Corporation
Inventor： Tsuyoshi MITARAI
CPC classification number: G02B27/0006 , G02B7/04 , G02B7/08 , G03B3/10 , G03B5/00 , G03B2205/0046 , G03B2205/0053 , G03B2217/18
Abstract: There is provided a lens device that prevents dust from entering a space in which a movable lens is moved.A movable lens is moved in the direction of an optical axis. A holding member, which extends in the direction of the optical axis, is formed at an end portion of the movable lens. A magnet is fixed to an end portion of the holding member. A hall IC is disposed in a closed storage space at a position facing the magnet. A signal, which corresponds to the position of the magnet in the direction of the optical axis, is output from the hall IC. Since the hall IC is disposed in the storage space closed by a storage box, the entry of dust, which is caused by the hall IC, into a space in which the movable lens is moved is prevented.
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公开(公告)号：US20150109683A1
公开(公告)日：2015-04-23
申请号：US14580962
申请日：2014-12-23
Applicant: FUJIFILM Corporation
Inventor： Tsuyoshi MITARAI
IPC: G02B7/10
CPC classification number: G02B7/10 , G02B7/023 , G02B7/08 , G03B9/02 , G03B17/568 , G03B2205/0092
Abstract: An object is to provide a lens system that can change the magnitude of torque required to rotate an operation ring according to the attachment/detachment of a drive unit to/from a lens barrel, the lens barrel, and the drive unit. When the drive unit is not mounted on the lens barrel, a torque adjustment mechanism works and a friction member presses the operation ring by a biasing force of a biasing member. When the drive unit is mounted on the lens barrel, a release member provided on the drive unit releases a bias, which is performed by the biasing member, by acting on the torque adjustment mechanism through a passage formed in a fixed ring.
Abstract translation: 目的是提供一种透镜系统，其可以根据驱动单元与透镜镜筒，透镜镜筒和驱动单元的连接/拆卸来改变旋转操作环所需的扭矩的大小。 当驱动单元未安装在镜筒上时，扭矩调节机构起作用，摩擦构件通过偏置构件的作用力按压操作环。 当驱动单元安装在镜筒上时，设置在驱动单元上的释放构件通过形成在固定环中的通道作用在扭矩调节机构上而释放由偏置构件执行的偏压。
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公开(公告)号：US20180203213A1
公开(公告)日：2018-07-19
申请号：US15920459
申请日：2018-03-14
Applicant: FUJIFILM Corporation
Inventor： Nobuaki UEKI , Tsuyoshi MITARAI
CPC classification number: G02B13/18 , G02B3/06 , G02B7/02 , G02B7/021 , G02B7/14 , G02B13/00 , G02B15/20 , G02B27/0068 , G02B27/1013 , G03B17/14 , G03B17/565 , H04N5/217 , H04N5/2254 , H04N9/045 , H04N9/097
Abstract: The first and second optical elements are held so as to be rotatable relative to each other about an optical axis. An aberration, which can cancel an aberration caused by a color separation prism, is generated from a synthesis of aberrations generated by the first and second optical elements in a case in which the second optical element is positioned at a first position with respect to the first optical element. The aberration generated by the first optical element is cancelled by the aberration generated by the second optical element in a case in which the second optical element is positioned at a second position with respect to the first optical element. The second optical element is positioned at the first position in a case in which the lens device is to be used in a 3-CCD type first camera device, and the second optical element is positioned at the second position with respect to the first optical element in a case in which the lens device is to be used in a single-CCD type second camera device.
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Patent Agency Ranking
公开(公告)号：US20170153411A1
公开(公告)日：2017-06-01
申请号：US15430934
申请日：2017-02-13
Applicant: FUJIFILM Corporation
Inventor： Tsuyoshi MITARAI
IPC: G02B7/04
CPC classification number: G02B7/04 , G02B7/08 , G03B5/02 , G03B17/04 , G03B2205/0092
Abstract: A lens device includes a Hall IC detecting whether extender lenses are positioned on an optical axis or are retreated from the optical axis by rotating the extender lenses about a rotating shaft by a predetermined angle. An inner space of a lens barrel is divided into first to fourth spaces by a first plane passing through the rotating shaft and the optical axis and a second plane passing through the optical axis and perpendicular to the first plane. When the extender lenses are positioned on the optical axis, a magnet is fixed to a portion in the first space of an extender lens frame and the Hall IC is disposed in the first space on a side substantially opposite to a portion in which the rotating shaft is present, so that the Hall IC is not an obstacle even while the extender lenses rotate.
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公开(公告)号：US20230034081A1
公开(公告)日：2023-02-02
申请号：US17855803
申请日：2022-07-01
Applicant: FUJIFILM Corporation
Inventor： Tsuyoshi MITARAI
Abstract: An optical system is disposed on an opposite side to an object side with respect to an objective lens, and includes: a rotational movement member that is rotationally movably supported; and a plurality of light transmissive regions that are formed in the rotational movement member, are configured to be able to be disposed at a position intersecting an optical axis of the objective lens, and have different light transmission characteristics, and a rotational movement axis of the rotational movement member is configured to be non-parallel with the optical axis of the objective lens.
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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
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。
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公开(公告)号：US20240353533A1
公开(公告)日：2024-10-24
申请号：US18760113
申请日：2024-07-01
Applicant: FUJIFILM CORPORATION
Inventor： Kouhei AWAZU , Yoshitaka MORI , Tsuyoshi MITARAI
IPC: G01S7/481
CPC classification number: G01S7/4811 , G01S7/4817
Abstract: A distance measurement device includes a light source that emits scanning light, a light receiving sensor that receives returning light, an incidence and emission window that has an annular shape centered at a reference axis set in advance and that is capable of omnidirectionally emitting the scanning light about the reference axis and capable of receiving the incident returning light, a light deflector that includes a movable mirror portion which reflects the scanning light from the light source toward the incidence and emission window and which reflects the returning light from the incidence and emission window toward the light receiving sensor, and that changes a direction of the scanning light by changing a posture of a movable reflection surface, and a relay optical system that relays the scanning light and the returning light between the movable mirror portion and each of the light source and the light receiving sensor.
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公开(公告)号：US20140029121A1
公开(公告)日：2014-01-30
申请号：US14040794
申请日：2013-09-30
Applicant: FUJIFILM Corporation
Inventor： Tsuyoshi MITARAI
IPC: G02B7/09
CPC classification number: G02B7/09 , G02B7/102 , G03B3/10 , H04N5/23212
Abstract: A lens device comprising a barrel body which movably holds a focus lens in an optical axis direction; a focus ring provided on an outer circumferential part of the barrel body and having a regulated rotation range; a rotation position detecting unit which detects a rotation position in the rotation range of the focus ring; a touch sensor provided on the outer circumferential part of the barrel body so as to be adjacent to the focus ring; and a control device which perform absolute position control of moving the focus lens to an absolute position corresponding to the rotation position detected by the rotation position detecting unit and relative position control of moving the focus lens to a relative position corresponding to a sliding amount on the touch sensor on an outer circumferential surface in a circumferential direction.
Abstract translation: 一种透镜装置，包括：沿光轴方向可移动地保持聚焦透镜的筒体; 设置在所述筒体的外周部并具有调节旋转范围的聚焦环; 旋转位置检测单元，其检测聚焦环的旋转范围内的旋转位置; 触摸传感器，其设置在所述筒体的外周部上以与所述聚焦环相邻; 以及控制装置，其执行将聚焦透镜移动到与由旋转位置检测单元检测到的旋转位置相对应的绝对位置的绝对位置控制，以及将对焦透镜移动到对应于在该位置检测单元上的滑动量的相对位置的相对位置控制 触摸传感器在圆周方向的外周面上。
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