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    • 11. 发明授权
    • Focal-plane shutter device
    • 焦平面快门装置
    • US5371565A
    • 1994-12-06
    • US196789
    • 1994-02-15
    • Takashi MatsubaraMasayuki KanamuroMasanori Hasuda
    • Takashi MatsubaraMasayuki KanamuroMasanori Hasuda
    • G03B9/18G03B9/40
    • G03B9/18
    • The present invention aims at improving the durability of a very high-speed shutter exceeding 1/8000 sec and further attaining a very high shutter speed even with sectors composed of a material exhibiting a low rigidity. For this purpose, a focal plane shutter device comprises: first and second blinds each constructed of a plurality of sectors; and a light shielding plate having an opening and an intermediate plate disposed between the first blind and the second blind. The first and second blinds are run in the facial direction of the light shielding plate so as to cover and expose the opening. The light shielding plate and the intermediate plate are bonded, or a shock absorbing member is interposed between these two plates.
    • 本发明的目的在于提高非常高速百叶窗的耐久性,超过1/8000秒,即使由表现出低刚性的材料构成的扇区,进一步获得非常高的快门速度。 为此,焦平面快门装置包括:由多个扇区构成的第一和第二百叶窗; 以及遮光板,其具有开口和设置在所述第一盲孔和所述第二盲孔之间的中间板。 第一和第二百叶窗在遮光板的面向上运行以覆盖和暴露开口。 遮光板和中间板被接合,或者在这两个板之间插入减震构件。
    • 13. 发明申请
    • Camera
    • 相机
    • US20090154915A1
    • 2009-06-18
    • US12314524
    • 2008-12-11
    • Masanori Hasuda
    • Masanori Hasuda
    • G03B17/02
    • G03B17/02
    • A camera capable of closing a barrier in accordance with need, even an interchangeable lens is mounted. The camera is provided with a connection portion, a barrier member and a barrier control section. The connection portion is detachably connected with the interchangeable lens and is provided with an aperture portion, which allows object light to pass therethrough. The barrier member is movably provided, in the state the interchangeable lens is connected with the connection portion, between a closed position, the barrier member closes off the aperture portion of the connection portion, and an open position, the barrier member is withdrawn from the light path. The barrier control section judges a state of mounting of the interchangeable lens to the connection portion, controls the barrier member to the closed position if the interchangeable lens is not mounted, and to the open position if mounted and a predetermined first condition is satisfied.
    • 安装了能够根据需要关闭屏障的照相机,即使是可互换的透镜。 相机设置有连接部分,屏障部件和屏障控制部分。 连接部分与可互换镜头可拆卸地连接并且设置有允许物体光通过的开口部分。 阻挡构件可移动地设置在可互换透镜与连接部分连接的状态下,在关闭位置之间,阻挡构件封闭连接部分的开口部分和打开位置,阻挡构件从 光路。 障碍物控制部分判断可更换镜头安装到连接部分的状态,如果未安装可更换镜头,则将屏障部件控制到关闭位置,如果安装则将其限制到打开位置,并且满足预定的第一条件。
    • 17. 发明授权
    • Camera accessory, mount of camera accessory, camera body and mount of camera body
    • 相机附件,相机配件的安装,相机机身和相机机身的安装
    • US08430582B2
    • 2013-04-30
    • US13029621
    • 2011-02-17
    • Masanori HasudaNoriyasu KotaniHideaki Hoshikawa
    • Masanori HasudaNoriyasu KotaniHideaki Hoshikawa
    • G03B17/00
    • G03B17/565G03B17/14G03B17/566
    • A camera accessory is equipped with an accessory mount assuming a bayonet structure with first through third tabs set over intervals along a circumference and projecting from inside of the accessory toward the outside. The mount is structured so that insertion of the mount is allowed when the mount is inserted at a correct interlock phase without any of the first through third tabs contacting any of three camera body-side tabs, and that insertion of the mount is disallowed if the accessory mount is positioned at an incorrect interlock phase with at least two tabs contacting at least two of the camera body-side tabs. The first through the third tabs extend along varying lengths along the circumference. When the first tab and either other tab contacts two of the camera body-side tabs at a total of two contact locations, the first tab contacts near the second side end.
    • 相机附件配备有附件安装件,其假定为卡口结构,其中第一至第三突出部沿着圆周设置间隔并且从附件的内部朝向外部突出。 安装件的构造使得当安装件以正确的互锁相位插入时,允许安装座的插入,而没有任何第一至第三突出部接触三个相机主体侧翼片中的任何一个,并且如果 附件安装座位于不正确的互锁相位,至少两个接片与相机主体侧翼片中的至少两个相接触。 第一至第三突片沿着圆周沿不同长度延伸。 当第一突片和任何另一个突片在总共两个接触位置接触两个相机主体侧突片时,第一突出部接触第二侧端附近。