专利名称：Iris device发明人：久保田 晋,棚瀬 順紀申请号：JP実願平4-33申请日：19920218
公开号：JP実開平5-69740U公开日：19930921
专利附图：
摘要：(57)< Abstract > < Objective >Application being possible even in the small-sized camera, at the same time the luminous intensity balunOffer the iris device where sucomes off. < Constitution > One only ND hui of multiple iris feathersInstalling ruta, in theiris device which becomes, the irisThe opening center which is formed with the feather on
ND filter side the se ruIn the iris feather which opposes with the ND filter optical centralsideTo the overhang was provided.
申请人：リズム時計工業株式会社
地址：東京都台東区台東2丁目27番7号
国籍：JP
代理人：森 正澄
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