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发明名称
羽根駆動装置及び光学装置
摘要
【課題】開放状態から小絞り径まで、円形な光通過開口を形成し、且つ、小型な羽根駆動装置及び光学装置を提供する。【解決手段】光が通過する光通過開口内に進退して口径が異なる複数の絞り開口を形成する複数の絞り羽根群と、前記複数の絞り羽根群を駆動する駆動手段とを備え、前記光通過開口内に各絞り羽根群を進入させて複数の絞り開口を順次形成する過程において、前記駆動手段が各絞り羽根群により受ける負荷のピークが分散されていることを特徴とする。【選択図】図1
申请公布号
JP2017058680(A)
申请公布日期
2017.03.23
申请号
JP20160181467
申请日期
2016.09.16
申请人
キヤノン電子株式会社
发明人
柴田 光夫;吉澤 隆仁
分类号
G03B9/02;G03B9/06
主分类号
G03B9/02
代理机构
代理人
主权项
地址
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