| 发明名称 |
Optical imaging lens assembly |
| 摘要 |
An optical imaging 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 and the fourth lens element both have refractive power. The fifth lens element with refractive power has a concave object-side surface and a convex image-side surface, wherein at least one of the surfaces of the fifth lens element is aspheric. The sixth lens element with refractive power has a concave image-side surface, wherein the surfaces 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 |
US8743482(B1) |
申请公布日期 |
2014.06.03 |
| 申请号 |
US201313773645 |
申请日期 |
2013.02.22 |
| 申请人 |
Largan Precision Co., Ltd. |
发明人 |
Tsai Tsung-Han;Huang Hsin-Hsuan |
| 分类号 |
G02B9/62 |
主分类号 |
G02B9/62 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. An optical imaging 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 with refractive power; a fourth lens element with refractive power; a fifth lens element with refractive power having a concave object-side surface and a convex image-side surface, wherein at least one of the object-side surface and the image-side surface of the fifth lens element is aspheric; 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 radius of the object-side surface of the second lens element is R3, a curvature radius of an image-side surface of the second lens element is R4, a focal length of the optical imaging lens assembly is f, a focal length of the fifth lens element is f5, and the following relationships are satisfied:
−5.0<(R3+R4)/(R3−R4)<−0.4; and−1.5<f/f5<0.8.
|
| 地址 |
Taichung TW |
