| 发明名称 | Zoom lens and photographing apparatus including the same | ||
| 摘要 | A zoom lens and a photographing apparatus including the same. The zoom lens includes, in an order from an object side to an image side: a front lens group having a negative refractive power; an aperture stop; and a rear lens group having a positive refractive power, wherein the front lens group includes a first lens group having a positive refractive power, a second lens group having a negative refractive power, and a third lens group having a negative refractive power, and the third lens group includes at least one positive lens and one negative lens and performs focusing, and the rear lens group includes at least two lens groups that are moved during zooming and have a positive refractive power, wherein at least one of the lenses of the two lens groups perform hand shake correction. | ||
| 申请公布号 | US9279968(B2) | 申请公布日期 | 2016.03.08 |
| 申请号 | US201213564156 | 申请日期 | 2012.08.01 |
| 申请人 | Samsung Electronics Co., Ltd. | 发明人 | Heu Min |
| 分类号 | G02B27/64;G02B15/177;G02B9/62 | 主分类号 | G02B27/64 |
| 代理机构 | Drinker Biddle & Reath LLP | 代理人 | Drinker Biddle & Reath LLP |
| 主权项 | 1. A zoom lens comprising, in an order from an object side to an image side: a front lens group having a negative refractive power; an aperture stop; and a rear lens group having a positive refractive power,wherein the front lens group comprises a first lens group having a positive refractive power, a second lens group having a negative refractive power, and a third lens group having a negative refractive power, and the third lens group comprises at least one positive lens and one negative lens and performs focusing, and the rear lens group comprises at least two lens groups that move during zooming and have a positive refractive power, wherein at least one of the two lens groups perform hand shake correction, and the zoom lens satisfies the following Equations: 1.5<|(1−ms2)·ms2|<61.0<f1/fT<3.0 where ms is a magnification of the third lens group at a telephoto position of the zoom lens, mR is a synthesis magnification of the rear lens group in the telephoto position of the zoom lens, fT is an overall focal length in the telephoto position of the zoom lens, and f1 is a focal length of the first lens group. | ||
| 地址 | Suwon-si KR | ||