| 发明名称 |
IMAGING LENS AND IMAGING APPARATUS INCLUDING THE IMAGING LENS |
| 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 negative refractive power, a third lens that has a negative refractive power, a fourth lens that has a positive refractive power, and a fifth lens that has a negative refractive power and has an aspheric shape of which an image side surface has an extreme point. Further, the imaging lens satisfies a predetermined conditional expression. |
| 申请公布号 |
US2014293452(A1) |
申请公布日期 |
2014.10.02 |
| 申请号 |
US201414224088 |
申请日期 |
2014.03.25 |
| 申请人 |
FUJIFILM CORPORATION |
发明人 |
KANDA HIDEO;NODA TAKAYUKI;KOIZUMI NOBORU;OGINO TATSUYUKI;CHO MICHIO;KOIKE KAZUMI |
| 分类号 |
G02B13/18 |
主分类号 |
G02B13/18 |
| 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 negative refractive power; a third lens that has a negative refractive power; a fourth lens that has a positive refractive power; and a fifth lens that has a negative refractive power and has an aspheric shape of which an image side surface has an extreme point, wherein the following conditional expression (1) is satisfied:
−1<f/f45<−0.105 (1), where f is a focal length of a whole system, and f45 is a composite focal length of the fourth and fifth lenses. |
| 地址 |
Tokyo JP |
