发明名称 |
Image pickup lens, image pickup unit and mobile terminal |
摘要 |
An image pickup lens includes: an aperture stop; a first lens having a positive power and including a convex surface facing an object side; a second lens having a negative power and including a concave surface facing an image side; a third lens in a meniscus shape having a positive power and including a convex surface facing the image side; and a fourth lens in a meniscus shape having a negative power and including a convex surface facing the object side. The image pickup lens satisfies predetermined conditions relating to a composite focal length of the first through third lenses, a length of an air space between the third lens and the fourth lens along the optical axis, and a curvature radius of a surface of the second lens facing the image side.
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申请公布号 |
US8004777(B2) |
申请公布日期 |
2011.08.23 |
申请号 |
US20090419490 |
申请日期 |
2009.04.07 |
申请人 |
KONICA MINOLTA OPTO, INC. |
发明人 |
SANO EIGO;KAWASAKI TAKASHI;OZAKI YUICHI |
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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