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    • 1. 发明授权
    • Focal-plane shutter for camera
    • 摄像机的焦平面快门
    • US06350069B1
    • 2002-02-26
    • US09583309
    • 2000-05-30
    • Osamu MiyauchiChiaki NemotoMakoto Mikami
    • Osamu MiyauchiChiaki NemotoMakoto Mikami
    • G03B940
    • G03B9/40
    • To prevent a front end of a slit forming sector of one of an open shutter sector group and a close shutter sector group from colliding with an upper edge portion of a partition opening of a partition plate and preventing leakage of light, a partition plate is provided with a partition plate opening and a projection is formed on the partition plate for preventing sector collision. The projection is formed slightly lower than the level of the upper edge portion of the partition plate opening so that immediately before a slit forming sector of the close shutter sector group comes into contact with the upper edge portion of the partition plate opening, a front end of the slit forming sector rides over the projection and is displaced from the upper edge portion of the partition plate opening. When the slit forming sector is fully closed, a lower face of the front end of the slit forming sector is separated from the projected portion and is brought into close contact with the partition plate by its own elastic force.
    • 为了防止打开的快门扇区组和闭门扇扇组之一的狭缝形成扇区的前端与分隔板的分隔开口的上边缘部分碰撞并防止光的泄漏,设置有隔板 隔板开口形成在隔板上,用于防止扇区碰撞。 突起形成得比分隔板开口的上边缘部分的高度略低,使得在紧闭开闭扇扇形组的狭缝形成扇区与隔板开口的上边缘部分接触之前, 狭缝形成区域跨越突起并从分隔板开口的上边缘部分移位。 当狭缝形成区段完全关闭时,狭缝形成区段的前端的下表面与突出部分分离,并通过其自身的弹力与隔板紧密接触。
    • 2. 发明授权
    • Focal plane shutter and optical apparatus
    • 焦平面快门和光学仪器
    • US08485742B2
    • 2013-07-16
    • US13291215
    • 2011-11-08
    • Yoichi NakanoMakoto MikamiChiaki Nemoto
    • Yoichi NakanoMakoto MikamiChiaki Nemoto
    • G03B9/08G03B9/32
    • G03B9/36
    • A focal plane shutter includes: a board including an opening; blades capable of opening and closing the opening; a drive lever swingably supported, holding a movable iron piece and driving the blades; a self-holding type solenoid capable of adsorbing to the movable iron piece by a given attraction force in a non-energized state, and reducing the given attraction force in an energized state; a biasing member biasing the drive lever to move the drive lever away from the self-holding type solenoid; and a set member moving the drive lever to abut the drive lever with the self-holding type solenoid, wherein the self-holding type solenoid is energized to reduce the given attraction force when the drive lever is swung by the set member to abut the movable iron piece with the self-holding type solenoid.
    • 焦平面快门包括:包括开口的板; 能够打开和关闭开口的叶片; 驱动杆可摆动地支撑,保持活动铁件并驱动叶片; 能够以非通电状态通过给定的吸引力吸附到可动铁片并且在通电状态下减小给定的吸引力的自保持型电磁铁; 偏置构件,其偏压所述驱动杆以使所述驱动杆远离所述自保持型螺线管; 以及组件,其使所述驱动杆移动以利用所述自保持型螺线管抵靠所述驱动杆,其中,所述自保持型螺线管被通电,以在所述驱动杆被所述固定构件摆动以抵靠所述可移动的位置时减小所述给定的吸引力 铁片带自动保持型电磁铁。
    • 3. 发明申请
    • FOCAL PLANE SHUTTER AND OPTICAL APPARATUS
    • FOCAL PLANE SHUTTER和OPTICAL APPARATUS
    • US20120134660A1
    • 2012-05-31
    • US13291215
    • 2011-11-08
    • Yoichi NAKANOMakoto MikamiChiaki Nemoto
    • Yoichi NAKANOMakoto MikamiChiaki Nemoto
    • G03B9/10
    • G03B9/36
    • A focal plane shutter includes: a board including an opening; blades capable of opening and closing the opening; a drive lever swingably supported, holding a movable iron piece and driving the blades; a self-holding type solenoid capable of adsorbing to the movable iron piece by a given attraction force in a non-energized state, and reducing the given attraction force in an energized state; a biasing member biasing the drive lever to move the drive lever away from the self-holding type solenoid; and a set member moving the drive lever to abut the drive lever with the self-holding type solenoid, wherein the self-holding type solenoid is energized to reduce the given attraction force when the drive lever is swung by the set member to abut the movable iron piece with the self-holding type solenoid.
    • 焦平面快门包括:包括开口的板; 能够打开和关闭开口的叶片; 驱动杆可摆动地支撑,保持活动铁件并驱动叶片; 能够以非通电状态通过给定的吸引力吸附到可动铁片并且在通电状态下减小给定的吸引力的自保持型电磁铁; 偏置构件,其偏压所述驱动杆以使所述驱动杆远离所述自保持型螺线管; 以及组件,其使所述驱动杆移动以利用所述自保持型螺线管抵靠所述驱动杆,其中,所述自保持型螺线管通电,以当所述驱动杆由所述固定构件摆动以抵靠所述可动件时,减小所述给定的吸引力 铁片带自动保持型电磁铁。
    • 5. 发明授权
    • Light quantity control device
    • 光量控制装置
    • US07965432B2
    • 2011-06-21
    • US12368552
    • 2009-02-10
    • Phichet NumnualTakashi NakanoMakoto Mikami
    • Phichet NumnualTakashi NakanoMakoto Mikami
    • G02B26/02
    • G03B9/02
    • A light quantity control device includes: a bottom board having an opening; a first blade and second blade linearly moving in opposing directions and changing in an opening area of the opening; a supporting blade overlapping the first blade and closing the opening in cooperation with the first blade and second blade; and a driving lever connected to the first blade, the second blade, and supporting blade, and driving the first blade, second blade, and the supporting blade by rotation of the driving lever. The first blade and supporting blade are engaged with an identical pin provided in the driving lever. The first blade and supporting blade are misaligned in such a way to reduce an overlapping degree of the first blade and supporting blade. The first blade and supporting blade bring the opening to the fully closed state in cooperation with the second blade.
    • 光量控制装置包括:具有开口的底板; 第一叶片和第二叶片在相反方向上线性移动并改变开口的开口面积; 支撑刀片与第一刀片重叠并且与第一刀片和第二刀片协作关闭开口; 以及连接到第一叶片,第二叶片和支撑叶片的驱动杆,并且通过驱动杆的旋转来驱动第一叶片,第二叶片和支撑叶片。 第一刀片和支撑刀片与设置在驱动杆中的相同的销接合。 第一刀片和支撑刀片不对准,以减少第一刀片和支撑刀片的重叠程度。 第一刀片和支撑刀片与第二刀片协同工作使开口处于完全关闭状态。
    • 6. 发明申请
    • LIGHT QUANTITY CONTROL DEVICE
    • 光数量控制装置
    • US20090153937A1
    • 2009-06-18
    • US12368552
    • 2009-02-10
    • Phichet NumnualTakashi NakanoMakoto Mikami
    • Phichet NumnualTakashi NakanoMakoto Mikami
    • G02B26/02
    • G03B9/02
    • A light quantity control device includes: a bottom board having an opening; a first blade and a second blade linearly moving in opposing directions and changing in an opening area of the opening; a supporting blade overlapping the first blade and closing the opening in cooperation with the first blade and the second blade; and a driving lever connected to the first blade, the second blade, and the supporting blade, and driving the first blade, the second blade, and the supporting blade by rotation of the driving lever. The first blade and the supporting blade are engaged with an identical pin provided in the driving lever. The first blade and the supporting blade are misaligned in such a way to reduce an overlapping degree of the first blade and the supporting blade. The first blade and the supporting blade bring the opening to the fully closed state in cooperation with the second blade.
    • 光量控制装置包括:具有开口的底板; 第一叶片和第二叶片沿相反方向线性移动并且在开口的开口区域中改变; 支撑刀片与第一刀片重叠并且与第一刀片和第二刀片协作关闭开口; 以及连接到第一叶片,第二叶片和支撑叶片的驱动杆,并且通过驱动杆的旋转来驱动第一叶片,第二叶片和支撑叶片。 第一刀片和支撑刀片与设置在驱动杆中的相同的销接合。 第一刀片和支撑刀片以这样的方式不对准,以减少第一刀片和支撑刀片的重叠程度。 第一刀片和支撑刀片与第二刀片协同工作使开口处于完全关闭状态。
    • 8. 发明授权
    • Plane shutter
    • 平面快门
    • US5997188A
    • 1999-12-07
    • US903505
    • 1997-07-30
    • Kunioki TakahashiToshiaki HiraiMakoto Mikami
    • Kunioki TakahashiToshiaki HiraiMakoto Mikami
    • G03B9/36G03B9/08G03B17/24
    • G03B9/08
    • A focal plane shutter has a base plate provided with a shutter opening, opening and closing sector groups each having a plurality of sectors, and a plurality of arms each having one end pivotally supported on the base plate so as to pivotally connect and support the sectors through connecting pins to form a parallel link mechanism. Each of the connecting pins has a tapered portion or a flange having a diameter small enough to prevent the action of each sector from being hindered when any of the sectors becomes interposed between any of the remaining sectors or an arm supporting the sector and any of the other sectors. Each of the arms may also have a reduced thickness portion proximate the connecting pin corresponding thereto to thereby prevent movement of the interposed sector from being hindered.
    • 焦平面快门具有设置有快门开口,开闭扇区组的基板,每个具有多个扇区,多个臂各自具有可枢转地支撑在基板上,以便枢转地连接和支撑扇区 通过连接销形成并联连杆机构。 每个连接销具有锥形部分或凸缘,其具有足够小的直径,以防止当任何扇区变成插入在任何剩余扇区之间时阻碍每个扇区的动作,或者支撑扇区和任何一个 其他部门。 每个臂还可以具有靠近与其对应的连接销的减小的厚度部分,从而防止插入的扇区的移动受到阻碍。