发明名称 |
Imaging Lens Having Five Lens Elements, and Electronic Apparatus Having the Same |
摘要 |
An imaging lens includes: a first lens element having a positive refracting power, and having a convex object-side surface facing toward an object side; a second lens element having a negative refracting power, and having a concave image-side surface facing toward an image side; a third lens element having a negative refracting power; a fourth lens having a convex image-side surface facing toward the image side; and a fifth lens element having an image-side surface with concave and convex portions and facing toward the image side. Absolute value of a difference between Abbe numbers of the second and third lens elements is less than 10. A quotient of a thickness of the fourth lens element divided by a sum of widths of air gap among the lens elements ranges between 0.5 and 1.
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申请公布号 |
US2013258184(A1) |
申请公布日期 |
2013.10.03 |
申请号 |
US201213617304 |
申请日期 |
2012.09.14 |
申请人 |
CHANG KUO-WEN;LEE POCHE;HSU SHENG-WEI |
发明人 |
CHANG KUO-WEN;LEE POCHE;HSU SHENG-WEI |
分类号 |
G02B13/18;H04N5/225 |
主分类号 |
G02B13/18 |
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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