发明名称 |
IMAGING LENS |
摘要 |
A compact high-resolution imaging lens which provides a wide field of view of 80 degrees or more and corrects various aberrations properly. Designed for a solid-state image sensor, the imaging lens includes constituent lenses arranged in the following order from an object side to an image side: a first positive (refractive power) lens having a convex object-side surface; a second negative lens having a concave image-side surface; a third positive lens as a double-sided aspheric lens having a convex object-side surface; a fourth positive lens having a convex image-side surface; a fifth lens as a double-sided aspheric lens having a concave image-side surface; and a sixth negative lens having a concave image-side surface. The image-side surface of the sixth lens has an aspheric shape with a pole-change point in a position off an optical axis. |
申请公布号 |
US2017108667(A1) |
申请公布日期 |
2017.04.20 |
申请号 |
US201615390212 |
申请日期 |
2016.12.23 |
申请人 |
KANTATSU CO., LTD. |
发明人 |
SEKINE Yukio |
分类号 |
G02B13/00;G02B27/00;G02B9/62 |
主分类号 |
G02B13/00 |
代理机构 |
|
代理人 |
|
主权项 |
1. An imaging lens for a solid-state image sensor, comprising in order from an object side to an image side of the imaging lens:
a first lens having positive refractive power and a convex surface facing the object side; a second lens; a third lens that is a double-sided aspheric lens having a convex surface facing the image side; a fourth lens that is a double-sided aspheric lens having positive refractive power; a fifth lens that is a double-sided aspheric lens having a concave surface facing the image side; and a sixth lens that is a double-sided aspheric lens, at least one of an object-side surface and an image-side surface of the sixth lens having a pole-change point separated from an optical axis of the imaging lens, wherein a maximum field of view of the imaging lens is 80 degrees or more. |
地址 |
Yaita-shi JP |