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公开(公告)号：US20170235090A1
公开(公告)日：2017-08-17
申请号：US15584858
申请日：2017-05-02
申请人： FUJIFILM Corporation
发明人： Yukitaka TAKESHITA , Mitsuhiko OKA , Yuichi KAWANABE , Yi PAN , Shinji OTSUKA , Kazuyoshi AZEGAMI
CPC分类号： G03B13/32 , G02B7/02 , G02B7/04 , G02B7/08 , G02B7/102 , G03B17/14 , H04N5/2254 , H04N5/23209 , H04N5/23212 , H04N5/23245 , H04N5/23296
摘要： There is provided a lens barrel that can easily and reliably prevent an erroneous operation at the time of switching of a manual focus mode.A lens barrel body houses an imaging optical system including a focus lens. A focus operation ring rotates integrally with a first connection ring about an optical axis of the imaging optical system. A second connection ring is movable between an engagement position at which the second connection ring is engaged with the first connection ring and a cam ring and a disengagement position at which the second connection ring is not engaged with both of the first connection ring and the cam ring. A switching-operation ring is movable between a rotation-restriction position at which the switching-operation ring moves the second connection ring to the engagement position and a rotation-allowable position at which the switching-operation ring moves the second connection ring to the disengagement position.
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公开(公告)号：US20180203202A1
公开(公告)日：2018-07-19
申请号：US15920670
申请日：2018-03-14
申请人： FUJIFILM Corporation
发明人： Yukitaka TAKESHITA , Mitsuhiko OKA
IPC分类号： G02B7/02
摘要： A lens barrel includes a lens barrel body, an imaging optical system, a focus ring, a diaphragm operation ring, and a sensor. The sensor includes a code board and first and second contact brushes. The code board is provided on the inner peripheral side of the diaphragm operation ring. The first and second contact brushes are provided on the outer peripheral side of the lens barrel body, and include a plurality of conductive contacts sliding on the code board in accordance with the rotation of the diaphragm operation ring. Signals are acquired from the conductive contacts of the first and second contact brushes and the rotational position of the diaphragm operation ring is detected.
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公开(公告)号：US20180203329A1
公开(公告)日：2018-07-19
申请号：US15920658
申请日：2018-03-14
申请人： FUJIFILM Corporation
CPC分类号： G03B7/01 , G02B7/14 , G03B13/32 , G03B17/14 , H04N5/2254 , H04N5/23216 , H04N5/374
摘要： A lens barrel includes an imaging optical system, a diaphragm operation ring, and click-stop mechanisms. The click-stop mechanism includes a first spherical body, first fitting portions, and a first biasing member. The click-stop mechanism includes a second spherical body, second fitting portions, and a second biasing member. The first spherical body is fitted to the first fitting portion in a case in which the diaphragm operation ring is set to a position corresponding to main series. The second spherical body is fitted to the second fitting portion in a case in which the diaphragm operation ring is set to a position corresponding to subordinate series.
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公开(公告)号：US20170199347A1
公开(公告)日：2017-07-13
申请号：US15469580
申请日：2017-03-27
申请人： FUJIFILM Corporation
发明人： Yukitaka TAKESHITA , Mitsuhiko OKA , Yuichi KAWANABE , Yi PAN , Shinji OTSUKA , Kazuyoshi AZEGAMI
CPC分类号： G02B7/04 , G03B3/10 , G03B13/34 , G03B2205/0046 , H04N5/2254 , H04N5/23209 , H04N5/23212 , H04N5/23245 , H04N5/23293
摘要： An object of the invention is to provide a camera body of which a manual focus mode can be easily switched.A lens barrel includes an imaging optical system, a first operation ring, a second operation ring, and first and second sensors. The first sensor detects the rotation of the first operation ring and the rotation angle and the rotational direction of the first operation ring. The second sensor detects the angular position of the second operation ring. The imaging optical system includes a focus lens. A camera body includes a body control unit. The body control unit selectively executes a first manual focus mode in which the focus lens is moved according to the rotational direction and the rotation angle detected by the first sensor and a second manual focus mode in which the focus lens is moved according to the angular position detected by the second sensor.
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