发明名称 |
Zoom lens and image pickup apparatus equipped with same |
摘要 |
A zoom lens includes a negative first lens unit G1 and a positive second lens unit G2. The second lens unit G2 includes first and second cemented lens components that are arranged adjacent to each other. The first and second cemented lens components are each made up of a plurality of lens elements having different refractive indices and different Abbe constants. The image side surface of the first cemented lens component and the object side surface of the second cemented lens component are both concave surfaces. |
申请公布号 |
US8411378(B2) |
申请公布日期 |
2013.04.02 |
申请号 |
US20100807935 |
申请日期 |
2010.09.17 |
申请人 |
KANBAYASHI NOBUMASA;MIYATA MASATO;OLYMPUS IMAGING CORP. |
发明人 |
KANBAYASHI NOBUMASA;MIYATA MASATO |
分类号 |
G02B9/34 |
主分类号 |
G02B9/34 |
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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