发明名称 Autofocusing system for a camera.
摘要 <p>An autofocusing system in the nacro zone of a photographic lens is arranged so that the photographic lens having a zooming zone and a macro zone is provioded with a first lens group driven by a first drive means and a second lens group driven by a second drive means, wherein the first lens group is driven for focusing in the zooming and macro zones, whereas the second lens group is driven for zooming in the zooming zone, the second lens group being driven for focusing in the macro zone before the first lens group is thus driven.</p>
申请公布号 EP0361523(A2) 申请公布日期 1990.04.04
申请号 EP19890118100 申请日期 1989.09.29
申请人 ASAHI KOGAKU KOGYO KABUSHIKI KAISHA 发明人 SUZUKI, NOBORU C/O ASAHI KOGAKU KOGYO K.K.;TOJI, SHIGEO;KAWASAKI, MASAHIRO C/O ASAHI KOGAKU KOGYO K.K.
分类号 G03B13/36;G02B7/105;G02B7/28 主分类号 G03B13/36
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