发明名称 ZOOM LENS, OPTICAL APPARATUS AND METHOD FOR MANUFACTURING ZOOM LENS
摘要 A zoom lens consisting of, in order from an object side: a first lens group G1 having negative refractive power; and a second lens group G2 having positive refractive power, the first lens group G1 including, in order from the object side, a first negative meniscus lens having a convex surface facing the object side, a negative lens, a second negative meniscus lens having a convex surface facing the object side, and a positive lens, a distance between the first lens group G1 and the second lens group G2 being varied thereby carrying out zooming, and given conditional expressions being satisfied, thereby providing a zoom lens having excellent optical performance and high resolution with being compact and lightweight, an optical apparatus, and a method for manufacturing the zoom lens.
申请公布号 US2012218646(A1) 申请公布日期 2012.08.30
申请号 US201213402956 申请日期 2012.02.23
申请人 KIMURA YOKO;NIKON CORPORATION 发明人 KIMURA YOKO
分类号 G02B15/14;B21D39/03 主分类号 G02B15/14
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