发明名称 |
Electronic imaging system comprising a zoom lens |
摘要 |
The invention relates to an electronic imaging system comprising a zoom lens that has high optical performance specifications such as high zoom ratios, wide angles of view, reduced F-numbers and limited aberrations, and enables an optical path to be easily bent. The zoom lens comprises a moving lens group B(G2) that has positive refracting power and moves only toward the object side upon zooming from the wide-angle end to the telephoto end, and a lens group A(G1) remaining fixed during zooming, which is located on the object side of the zoom lens with respect to the moving lens group B and has negative refracting power. The moving lens group B is composed of, in order from its object side, a positive lens, a negative lens and a positive lens, three lenses in all.
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申请公布号 |
EP2450731(A2) |
申请公布日期 |
2012.05.09 |
申请号 |
EP20120153251 |
申请日期 |
2003.03.27 |
申请人 |
OLYMPUS CORPORATION |
发明人 |
MIHARA, SHINICHI;KONISHI, HIROKAZU;WATANABE, MASAHITO;ISHII, ATSUJIRO;TAKEYAMA, TETSUHIDE;IMAMURA, AYAMI;HANZAWA, TOYOHARU |
分类号 |
G02B15/177;G02B13/18;G02B15/167;G02B15/20 |
主分类号 |
G02B15/177 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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