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    • 48. 发明专利
    • Focal plane shutter and optical equipment
    • FOCAL PLANE SHUTTER和OPTICAL EQUIPMENT
    • JP2011170227A
    • 2011-09-01
    • JP2010035697
    • 2010-02-22
    • Seiko Precision Incセイコープレシジョン株式会社
    • TAKAHASHI YUJIOISHI SEIICHI
    • G03B9/36
    • G03B9/22G03B19/18
    • PROBLEM TO BE SOLVED: To provide a focal plane shutter maintaining posture of an iron piece to be constant, and also to provide optical equipment. SOLUTION: The focal plane shutter 1 has: an electromagnet 70B; a substrate 10 which has an opening 11; blades 21b to 24b which can move between a position where they are retracted from the opening 11 and a position where they are superposed on at least a part of the opening 11; and a driving lever 40B which has a shaft part 45b provided with a flange part 45b1 at one end, an iron piece 46b disposed at the other end of the shaft part 45b and attracted to the electromagnet 70B, supporting part 42b having a through-hole 42b5 pierced by the shaft part 45b with play, and a guide part 44b disposed along the iron piece 46b, and which drives the blades 21b to 24b. The driving lever 40B has: a first energizing member 47b energizing the iron piece 46b in a shaft center direction of the shaft part 45b; and a second energizing member 49b energizing the iron piece 46b in a direction crossing with the shaft center direction so that the iron piece 46b is pressed against the guide part 44b. COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:提供铁片的焦平面快门维持姿势恒定,并且还提供光学设备。 解决方案:焦平面快门1具有:电磁体70B; 具有开口11的基板10; 刀片21b至24b可在其从开口11缩回的位置与它们叠置在开口11的至少一部分上的位置之间移动; 以及驱动杆40B,其具有在一端设置有凸缘部45b1的轴部45b,设置在轴部45b的另一端并被吸引到电磁体70B的铁片46b,具有贯通孔的支撑部42b 42b5由具有游隙的轴部45b穿过,并且沿着铁片46b布置的引导部44b,并且驱动刀片21b至24b。 驱动杆40B具有:在轴部45b的轴心方向上对铁片46b通电的第一施力部件47b; 以及第二通电构件49b,其在与轴中心方向交叉的方向上对铁片46b通电,使得铁片46b被压靠在引导部44b上。 版权所有(C)2011,JPO&INPIT