发明名称 |
Optical image lens system |
摘要 |
This invention provides an optical image lens system comprising: a positive first lens element having a convex object-side surface; a second lens element; a positive third lens element; a fourth lens element; a positive plastic fifth lens element having a convex object-side surface and a concave image-side surface, at least one of the object-side and image-side surfaces is aspheric; and a negative plastic sixth lens element having a concave image-side surface, at least one of the object-side and image-side surfaces is aspheric, wherein the shape of the image-side surface changes from concave at the paraxial region thereof to convex while away from the paraxial region thereof. |
申请公布号 |
US8717685(B2) |
申请公布日期 |
2014.05.06 |
申请号 |
US201213597862 |
申请日期 |
2012.08.29 |
申请人 |
TSAI TSUNG-HAN;CHOU MING-TA;LARGAN PRECISION CO., LTD |
发明人 |
TSAI TSUNG-HAN;CHOU MING-TA |
分类号 |
G02B3/02 |
主分类号 |
G02B3/02 |
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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