发明名称 ZOOM LENS, OPTICAL APPARATUS AND METHOD OF MANUFACTURING ZOOM LENS
摘要 A zoom lens having, in order from an object, a first lens group G1 having negative refractive power, a second lens group G2 having positive refractive power, and a third lens group GH3 having positive refractive power, wherein the second lens group G2 is constituted only by three or more cemented lenses.
申请公布号 US2012050882(A1) 申请公布日期 2012.03.01
申请号 US201113215368 申请日期 2011.08.23
申请人 ARAI DAISAKU;NIKON CORPORATION 发明人 ARAI DAISAKU
分类号 G02B15/14 主分类号 G02B15/14
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