| 发明名称 |
IMAGING LENS AND IMAGING APPARATUS INCLUDING THE IMAGING |
| 摘要 |
An imaging lens substantially consists of, in order from an object side, five lenses of a first lens that has a positive refractive power and has a meniscus shape which is convex toward the object side, a second lens that has a biconcave shape, a third lens that has a meniscus shape which is convex toward an image side, a fourth lens that has a positive refractive power, and a fifth lens that has a negative refractive power and has at least one inflection point on an image side surface. Further, the imaging lens satisfies a predetermined conditional expression. |
| 申请公布号 |
US2014293459(A1) |
申请公布日期 |
2014.10.02 |
| 申请号 |
US201414221303 |
申请日期 |
2014.03.21 |
| 申请人 |
FUJIFILM CORPORATION |
发明人 |
NODA TAKAYUKI;CHO MICHIO |
| 分类号 |
G02B9/60 |
主分类号 |
G02B9/60 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. An imaging lens substantially consisting of, in order from an object side, five lenses of:
a first lens that has a positive refractive power and has a meniscus shape which is convex toward the object side; a second lens that has a biconcave shape; a third lens that has a meniscus shape which is convex toward an image side; a fourth lens that has a positive refractive power; and a fifth lens that has a negative refractive power and has at least one inflection point on an image side surface, wherein the following conditional expression (1) is satisfied:
−0.06<f1/f3<0.4 (1), where f1 is a focal length of the first lens, and f3 is a focal length of the third lens. |
| 地址 |
Tokyo JP |
