| 发明名称 | Zoom lens and imaging apparatus | ||
| 摘要 | A zoom lens includes: a first lens group having a positive refractive power which is fixed while changing magnification; two or more movable lens groups that move independently from each other while changing magnification; and a final lens group having a positive refractive power which is fixed while changing magnification, provided in this order from an object side. The zoom lens satisfying Conditional Formula (1) below: 1.30<h/(Yimg·tan θ)<2.37 (1). | ||
| 申请公布号 | US9606336(B2) | 申请公布日期 | 2017.03.28 |
| 申请号 | US201414328782 | 申请日期 | 2014.07.11 |
| 申请人 | FUJIFILM Corporation | 发明人 | Komatsu Daiki;Toyama Nobuaki |
| 分类号 | G02B15/17;G02B15/173;G02B15/167 | 主分类号 | G02B15/17 |
| 代理机构 | Young & Thompson | 代理人 | Young & Thompson |
| 主权项 | 1. A zoom lens, comprising: a first lens group having a positive refractive power which is fixed while changing magnification; two or more movable lens groups that move independently from each other while changing magnification; and a final lens group having a positive refractive power which is fixed while changing magnification, provided in this order from an object side; the zoom lens satisfying Conditional Formula (1) below: 1.30<h/(Yimg·tan θ)<2.37 (1) wherein h is the height at which a chief ray of light having a maximum image height enters a first surface at a wide angle end, Yimg is the maximum image height, and θ is the half angle of view at the wide angle end. | ||
| 地址 | Tokyo JP | ||