发明名称 Lens control apparatus
摘要 A video camera having a variator lens and focus lens which calculates in-focus positions varying with the drive of the variator lens based on previously stored in-focus position data, and performs the calculation a plurality of times during a period of a vertical-synchronizing signal in an image signal.
申请公布号 US6184932(B1) 申请公布日期 2001.02.06
申请号 US19960615815 申请日期 1996.03.14
申请人 CANON KABUSHIKI KAISHA 发明人 TANAKA TAEKO
分类号 G03B3/10;G02B7/08;G02B7/28;G02B7/32;G03B13/34;H04N5/232;(IPC1-7):H04N5/232 主分类号 G03B3/10
代理机构 代理人
主权项
地址