| 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 front group; an aperture stop; and a rear group having a positive refractive power. The front group is constituted by, in order from the object side to the image side: at least two negative lenses, and a cemented lens formed by cementing a negative lens and a positive lens having a smaller Abbe's number with respect to the d line than the negative lens, provided in this order from the object side to the image side, together. The rear group is constituted by, in order from the object side to the image side: at least one positive lens, and a cemented lens having a positive refractive power as a whole, formed by cementing a positive lens and a negative lens, provided in this order form the object side to the image side, together. |
| 申请公布号 |
US2017023778(A1) |
申请公布日期 |
2017.01.26 |
| 申请号 |
US201615206346 |
申请日期 |
2016.07.11 |
| 申请人 |
FUJIFILM Corporation |
发明人 |
INOUE Kazuki |
| 分类号 |
G02B13/04;G02B23/24;G02B27/00;G02B9/60;G02B9/62 |
主分类号 |
G02B13/04 |
| 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 front group; an aperture stop; and a rear group having a positive refractive power; the front group consisting of, in order from the object side to the image side: at least two negative lenses, and a cemented lens formed by cementing a negative lens and a positive lens having a smaller Abbe's number with respect to the d line than the negative lens, provided in this order from the object side to the image side, together; and the rear group consisting of, in order from the object side to the image side: at least one positive lens, and a cemented lens having a positive refractive power as a whole, formed by cementing a positive lens and a negative lens, provided in this order form the object side to the image side, together. |
| 地址 |
Tokyo JP |
