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    • 7. 发明专利
    • Barrier device, lens barrel, and imaging apparatus including the same
    • 障碍装置,镜头条和成像装置,包括它们
    • JP2014145820A
    • 2014-08-14
    • JP2013012999
    • 2013-01-28
    • Canon Incキヤノン株式会社
    • ISHIMASA TORU
    • G03B11/04
    • G03B9/14G03B11/043
    • PROBLEM TO BE SOLVED: To provide a barrier device which is capable of reducing the number of components and performing the opening/closing operation of a barrier with a simple configuration.SOLUTION: A lens barrel includes the barrier device including a barrier main-blade 154 and a barrier sub-blade 155. In the operation ranges 154h and 155e of the barrier main-blade 154 and the barrier sub-blade 155, a part of a contact surface 155b with the barrier main-blade 154, provided in the barrier sub-blade 155 is located in the operation range 154h of a contact surface 154b with the barrier sub-blade 155, provided in the barrier main-blade 154.
    • 要解决的问题:提供一种阻挡装置,其能够以简单的构造减少部件的数量和执行障碍物的打开/关闭操作。解决方案:镜筒包括阻挡装置,其包括阻挡主刀片154 和屏障副叶片155.在屏障主片154和屏障副叶片155的操作范围154h和155e中,设置在屏障子片154中的与屏障主片154的接触表面155b的一部分 刀片155位于与阻挡副刀片155的接触面154b的操作范围154h中,阻挡副刀片155设置在阻挡主刀片154中。