发明名称 LENS BARREL
摘要 <P>PROBLEM TO BE SOLVED: To improve space efficiency to reduce the size of a lens barrel by eliminating, in a lens caulking part, a structure for attaching a thin fixed diaphragm member for shielding unwanted light other than effective light beam by adhesion, welding or the like, and fixing the fixed diaphragm member while suppressing floating or wrinkling thereof as much as possible. Ž<P>SOLUTION: In the lens barrel, the outer shape of a ring sheet-like metallic light shielding member which is colored to prevent reflection of light is formed to conform to the lens holding diameter of a lens holding frame. When a lens is caulked and fixed, the light shielding member is put on the lens, and the light shielding member surface is thermally caulked, whereby the lens and the light shielding member are simultaneously fixed. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
申请公布号 JP2010145504(A) 申请公布日期 2010.07.01
申请号 JP20080319753 申请日期 2008.12.16
申请人 CANON INC 发明人 KANBE MUNEO
分类号 G02B7/02 主分类号 G02B7/02
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