发明名称 |
Zoom lens and image capture apparatus |
摘要 |
A zoom lens includes, in order from an object side, a first lens group having a positive refractive power and fixed in an optical axis direction, a second lens group having a negative refractive power and moving along an optical axis to zoom, a third lens group having a positive refractive power and fixed in the optical axis direction, and a fourth lens group having a positive refractive power and moving in a non straight line along the optical axis to compensate variations of an image formation position and compensate change of the image formation position caused by changes of an object distance.
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申请公布号 |
EP1936418(A1) |
申请公布日期 |
2008.06.25 |
申请号 |
EP20070254799 |
申请日期 |
2007.12.12 |
申请人 |
SONY CORPORATION |
发明人 |
SUZAKI, MITSUHIRO;NANJO, YUSUKE;ARITA, SHINICHI;TOYODA, KOJI |
分类号 |
G02B7/10;G02B13/18;G02B15/173 |
主分类号 |
G02B7/10 |
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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