发明名称 Zoom lens of the retrofocus type having three lens groups
摘要 The zoom lens includes, in order from the object along the optical axis, a first lens group (G1) having negative power, a second lens group (G2) having positive power, and a third lens group (G3) having positive power. Upon zooming from wide-angle (W) to telephoto end (T), each distance between adjacent lens groups is varied.
申请公布号 EP2015123(A2) 申请公布日期 2009.01.14
申请号 EP20080252320 申请日期 2008.07.07
申请人 NIKON CORPORATION 发明人 SHIMADA, TOSHIYUKI
分类号 G02B15/177 主分类号 G02B15/177
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