| 发明名称 | Imaging lens and imaging apparatus equipped with the imaging lens | ||
| 摘要 | An imaging lens is substantially constituted by five lenses, including: a first lens having a positive refractive power and a convex surface toward the object side; a second lens having a biconcave shape; a third lens having a positive refractive power and is of a meniscus shape having a concave surface toward the object side; a fourth lens having a concave surface toward the object side; and a fifth lens having a negative refractive power and is of a meniscus shape having a convex surface toward the object side, provided in this order from the object side. The imaging lens satisfies a predetermined conditional formula. | ||
| 申请公布号 | US9329363(B2) | 申请公布日期 | 2016.05.03 |
| 申请号 | US201414577021 | 申请日期 | 2014.12.19 |
| 申请人 | FUJIFILM Corporation | 发明人 | Kanda Hideo;Ota Motoari |
| 分类号 | G02B13/04;G02B9/60;G02B13/00 | 主分类号 | G02B13/04 |
| 代理机构 | Young & Thompson | 代理人 | Young & Thompson |
| 主权项 | 1. An imaging lens substantially consisting of five lenses, including: a first lens having a positive refractive power and a convex surface toward the object side; a second lens having a biconcave shape; a third lens having a positive refractive power and is of a meniscus shape having a concave surface toward the object side; a fourth lens having a concave surface toward the object side; and a fifth lens having a negative refractive power and is of a meniscus shape having a convex surface toward the object side, provided in this order from the object side; the imaging lens satisfying the following conditional formula: 0.75<f/f3<1.85 (1) wherein f is the focal length of the entire system, and f3 is the focal length of the third lens. | ||
| 地址 | Tokyo JP | ||