发明名称 Zoom lens system
摘要 Providing a zoom lens system that can excellently correct aberrations over entire range from a wide-angle end state W to a telephoto end state T in spite of having a high zoom ratio including, in order from an object, a first group G 1 having positive power, a second group G 2 having negative power, a third group G 3 having positive power, a fourth group G 4 having negative power, and a fifth group G 5 having positive power. When zooming from the wide-angle end state W to the telephoto end state T, a distance between the first group G 1 and the second group G 2 increases, a distance between the second group G 2 and the third group G 3 decreases, a distance between the third group G 3 and the fourth group G 4 increases, and a distance between the fourth group G 4 and the fifth group G 5 decreases. Given conditions are satisfied.
申请公布号 US2007070521(A1) 申请公布日期 2007.03.29
申请号 US20060513123 申请日期 2006.08.31
申请人 NIKON CORPORATION 发明人 HAYAKAWA SATOSHI
分类号 G02B15/14 主分类号 G02B15/14
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