发明名称 |
IMAGE CAPTURING OPTICAL LENS ASSEMBLY |
摘要 |
An image capturing optical lens assembly includes, in order from an object side to an image side, a first lens element, a second lens element, a third lens element, a fourth lens element, a fifth lens element, and a sixth lens element. The first lens element with positive refractive power has a convex object-side surface. The second lens element with negative refractive power has a concave object-side surface. The third lens element has negative refractive power. The fourth lens element has refractive power. The fifth lens element with positive refractive power has a convex image-side surface. The sixth lens element with refractive power has a concave image-side surface, wherein an object-side surface and the image-side surface of the sixth lens element are aspheric, and the sixth lens element has at least one inflection point on the image-side surface thereof. |
申请公布号 |
US2014153113(A1) |
申请公布日期 |
2014.06.05 |
申请号 |
US201313747484 |
申请日期 |
2013.01.23 |
申请人 |
LARGAN PRECISION CO., LTD. |
发明人 |
TSAI Tsung-Han;HUANG Hsin-Hsuan |
分类号 |
G02B13/18 |
主分类号 |
G02B13/18 |
代理机构 |
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代理人 |
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主权项 |
1. An image capturing optical lens assembly comprising, in order from an object side to an image side:
a first lens element with positive refractive power having a convex object-side surface; a second lens element with negative refractive power having a concave object-side surface; a third lens element having negative refractive power; a fourth lens element having refractive power; a fifth lens element with positive refractive power having a convex image-side surface; and a sixth lens element with refractive power having a concave image-side surface, wherein an object-side surface and the image-side surface of the sixth lens element are aspheric, and the sixth lens element has at least one inflection point on the image-side surface thereof; wherein a curvature of the object-side surface of the second lens element is C3, a curvature of an image-side surface of the second lens element is C4, the image capturing optical lens assembly further comprises a stop, an axial distance between the stop and a non-axial critical point on the image-side surface of the sixth lens element is Dsc, an axial distance between the object-side surface of the first lens element and an image plane is TL, and the following relationships are satisfied:
0<(C3−C4)/(C3+C4)<5.0; and0.5<Dsc/TL<1.0.
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地址 |
Taichung City TW |