发明名称 |
OPTICAL LENS ASSEMBLY |
摘要 |
This invention provides an optical lens assembly comprising, in order from an object side to an image side: a first lens element with positive refractive power; a second lens element with positive refractive power; a third lens element with negative refractive power having a concave object-side surface and a convex image-side surface, at least one of the object-side and image-side surfaces thereof being aspheric; and a fourth lens element with positive refractive power having an aspheric object-side surface and an aspheric image-side surface; wherein the number of lens elements with refractive power is four. |
申请公布号 |
US2012099009(A1) |
申请公布日期 |
2012.04.26 |
申请号 |
US201113032682 |
申请日期 |
2011.02.23 |
申请人 |
HSU CHIH WEN;HUANG HSIN HSUAN;LARGAN PRECISION CO., LTD. |
发明人 |
HSU CHIH WEN;HUANG HSIN HSUAN |
分类号 |
H04N5/335;G02B9/34;G02B13/18 |
主分类号 |
H04N5/335 |
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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