Fully closing iris diaphragm
    1.
    发明授权
    Fully closing iris diaphragm 失效
    完全关闭IRIS DIAPHRAGM

    公开(公告)号:US3836234A

    公开(公告)日:1974-09-17

    申请号:US34011773

    申请日:1973-03-12

    发明人: FARNSWORTH J

    IPC分类号: G03B9/08 G02F1/30 G03B9/02

    CPC分类号: G03B9/08

    摘要: A fully-closing iris diaphragm is disclosed which consists of a substantially conventional iris diaphragm with the addition of a capping section to one leaf, which is positioned to obscure the minimum aperture obtainable without ''''scissoring'''' distortion of the leaves.

    摘要翻译: 公开了一种完全闭合的虹膜光阑,其由基本上常规的虹膜光阑组成,在一个叶片上添加了封盖部分,其被定位成遮蔽可获得的最小孔径,而不会“叶片”的叶片变形。