| 发明名称 |
IMAGING LENS AND IMAGING APPARATUS |
| 摘要 |
An imaging lens is constituted by, in order from the object side to the image side: a first lens having a negative refractive power and a concave surface toward the image side; a second lens having a negative refractive power; a third lens having a positive refractive power and a convex surface toward the image side; a fourth lens having a negative refractive power and a concave surface toward the image side; a biconvex fifth lens which is cemented to the fourth lens; and a sixth lens having a negative refractive power and a concave surface toward the object side. Conditional Formula (1) below is satisfied:;−2.1<r3r/f<−1.2 (1). |
| 申请公布号 |
US2017059816(A1) |
申请公布日期 |
2017.03.02 |
| 申请号 |
US201615222193 |
申请日期 |
2016.07.28 |
| 申请人 |
FUJIFILM Corporation |
发明人 |
MORI Masao |
| 分类号 |
G02B9/60;B60R1/00;G02B27/00 |
主分类号 |
G02B9/60 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. An imaging lens consisting of, in order from the object side to the image side:
a first lens having a negative refractive power and a concave surface toward the image side; a second lens having a negative refractive power; a third lens having a positive refractive power and a convex surface toward the image side; a fourth lens having a negative refractive power and a concave surface toward the image side; a biconvex fifth lens which is cemented to the fourth lens; and a sixth lens having a negative refractive power and a concave surface toward the object side; and Conditional Formula (1) below being satisfied:
−2.1<r3r/f<−1.2 (1) wherein r3r is the radius of curvature of the surface toward the image side of the third lens, and f is the focal length of the entire lens system. |
| 地址 |
Tokyo JP |
