发明名称 LENS HOOD
摘要 PROBLEM TO BE SOLVED: To provide a lens hood which is good in operability of clamping in attachment and detachment and can tightly be held on a front lens barrel. SOLUTION: As for a taking lens characterized in that the hood for removing entry of a harmful light beam is mounted on the front lens barrel, a recessed part is provided to a hood external edge part nearby at least a fixing operation member. Here, the recessed part is shaped to block no optically effective light beam. COPYRIGHT: (C)2004,JPO&NCIPI
申请公布号 JP2004264744(A) 申请公布日期 2004.09.24
申请号 JP20030057110 申请日期 2003.03.04
申请人 CANON INC 发明人 SHIBAZAKI TAKESHI;IZUMI YASUHIRO
分类号 G03B11/04;(IPC1-7):G03B11/04 主分类号 G03B11/04
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