| 发明名称 |
OPTICAL IMAGE LENS SYSTEM |
| 摘要 |
An optical image lens system 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 has positive refractive power. The second lens element has positive refractive power. The third lens element has refractive power. The fourth lens element has refractive power. The fifth lens element with refractive power has a convex object-side surface, wherein at least one of two surfaces of the fifth lens element is aspheric. The sixth lens element with negative refractive power has a concave image-side surface, wherein at least one of two surfaces of the sixth lens element is aspheric, and the sixth lens element has at least one inflection point on at least one of the surfaces thereof. |
| 申请公布号 |
US2014211327(A1) |
申请公布日期 |
2014.07.31 |
| 申请号 |
US201414243886 |
申请日期 |
2014.04.02 |
| 申请人 |
Largan Precision Co., Ltd. |
发明人 |
CHEN Chun-Shan;TSAI Tsung-Han;CHOU Ming-Ta |
| 分类号 |
G02B13/00 |
主分类号 |
G02B13/00 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. An optical image lens system comprising, in order from an object side to an image side:
a first lens element having positive refractive power; a second lens element having positive refractive power; a third lens element having refractive power; a fourth lens element having refractive power; a fifth lens element with refractive power having a convex object-side surface, wherein at least one of the object-side surface and an image-side surface of the fifth lens element is aspheric; and a sixth lens element with negative refractive power having a concave image-side surface, wherein at least one of an object-side surface and the image-side surface of the sixth lens element is aspheric, and the sixth lens element has at least one inflection point on at least one of the object-side surface and the image-side surface thereof; wherein the optical image lens system has a total of six lens elements with refractive power, and of the first lens element, the second lens element, the third lens element, the fourth lens element, the fifth lens element and the sixth lens element of the optical image lens system, there is a space in a paraxial region between every pair of lens elements that are adjacent to each other |
| 地址 |
Taichung City TW |
