| 发明名称 |
IMAGING LENS AND IMAGING DEVICE USING SAME |
| 摘要 |
An imaging lens includes, arranged in sequence from the object side to the imaging surface side, a first lens having a positive power and convex surfaces on both sides; an aperture diaphragm; a second lens being a meniscus lens having a negative power and a convex surface on the object side; a third lens being a meniscus lens having a positive power and a concave surface on the object side; and a fourth lens having a negative power and concave surfaces on both sides. With this structure, the imaging lens is well corrected for various aberrations in spite of being compact in the lens radial direction and thin in the optical axis direction. |
| 申请公布号 |
US2014347515(A1) |
申请公布日期 |
2014.11.27 |
| 申请号 |
US201214345297 |
申请日期 |
2012.10.10 |
| 申请人 |
Panasonic Corporation |
发明人 |
Iba Takumi;Yamashita Masatoshi |
| 分类号 |
G02B13/00;G02B9/34;G03B17/56 |
主分类号 |
G02B13/00 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. An imaging lens comprising, arranged in sequence from an object side to an imaging surface side,
a first lens having a positive power and convex surfaces on both sides; an aperture diaphragm; a second lens being a meniscus lens having a negative power and a convex surface on the object side; a third lens being a meniscus lens having a positive power and a concave surface on the object side; and a fourth lens having a negative power and concave surfaces on both sides. |
| 地址 |
Kadoma-shi, Osaka JP |
