| 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 and has a meniscus shape which is concave toward an image side, a third lens that has a meniscus shape which is convex toward the 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 predetermined conditional expressions. |
| 申请公布号 |
US2014293447(A1) |
申请公布日期 |
2014.10.02 |
| 申请号 |
US201414219697 |
申请日期 |
2014.03.19 |
| 申请人 |
FUJIFILM CORPORATION |
发明人 |
NODA Takayuki;CHO Michio |
| 分类号 |
G02B13/00 |
主分类号 |
G02B13/00 |
| 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 and has a meniscus shape which is concave toward an image side; a third lens that has a meniscus shape which is convex toward the 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 expressions (1) and (2) are satisfied:
−0.65<f1/f5<−0.05 (1), and−0.1<f/f3<1 (2), where f is a focal length of a whole system, f1 is a focal length of the first lens, f3 is a focal length of the third lens, and f5 is a focal length of the fifth lens. |
| 地址 |
TOKYO JP |
