发明名称 Lens control device
摘要 A lens control device which uses a zoom lens in which the state of marginal light quantity varies according to each focal length is arranged to compensate for a variation in marginal light quantity during zooming by detecting the focal length and controlling a maximum aperture diameter of an iris.
申请公布号 US6070016(A) 申请公布日期 2000.05.30
申请号 US19980209203 申请日期 1998.12.10
申请人 CANON KABUSHIKI KAISHA 发明人 KANEDA, NAOYA
分类号 G03B7/095;G02B7/08;G02B7/10;H04N5/232;H04N5/238;(IPC1-7):G03B7/00;G03B17/00 主分类号 G03B7/095
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