| 发明名称 |
FIVE-ASPHERIC-SURFACE WAFER-LEVEL LENS SYSTEMS HAVING WIDE VIEWING ANGLE |
| 摘要 |
A wafer-level lens system includes a first substrate, a first lens having a planar surface in contact with the first substrate and a concave aspheric surface, a second substrate, a second lens having a convex aspheric surface facing the first lens and a planar surface in contact with the second substrate, a third lens having a planar surface in contact with the second substrate and a concave aspheric surface, a third substrate, a fourth lens having a convex aspheric surface facing the third lens and a planar surface in contact with the third substrate, and a fifth lens having a planar surface in contact with the third substrate and a concave aspheric surface. |
| 申请公布号 |
US2014334016(A1) |
申请公布日期 |
2014.11.13 |
| 申请号 |
US201313889837 |
申请日期 |
2013.05.08 |
| 申请人 |
OMNIVISION TECHNOLOGIES, INC. |
发明人 |
Yin Chuen-Yi;Deng Jau-Jan |
| 分类号 |
G02B13/00 |
主分类号 |
G02B13/00 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A lens system, comprising:
a first substrate having an outside surface; a first lens having a concave aspheric surface and a focal length F1; a second lens having a convex aspheric surface facing the first lens and a focal length F2; and a third lens having a concave aspheric surface and a focal length F3; wherein the lens system satisfies the following conditions:
0.2<EFFL/TTL<0.5;−0.75<EFFL/F1<−0.35;1<EFFL/F2<1.4;−0.65<EFFL/F3<−0.15;V2>V3 and V3<35;wherein: (i) EFFL is an effective focal lens of the lens system; (ii) TTL is a distance from the outside surface of the first substrate to an image plane; and (iii) V2 is an Abbe number of the second lens, and V3 is an Abbe number of the third lens. |
| 地址 |
Santa Clara CA US |
