| 发明名称 | Zoom lens system | ||
| 摘要 | A zoom lens system includes, in order from the object side to the image side, a first, a second, and a third lens groups. The first lens group includes, in order from the object side to the image side, a first and a second lenses. The second lens group is capable of floating to realize an image stabilizating function and includes, in order from the object side to the image side, a third to sixth lenses. The zoom lens system satisfies various formulas, including 0.3<d2a/D2<0.4, wherein d2a is the distance between image-side surfaces of the fifth lens and of the sixth lens, and D2 is a width of the second lens group along an optical axis of the zoom lens system. | ||
| 申请公布号 | US8908286(B2) | 申请公布日期 | 2014.12.09 |
| 申请号 | US201213436981 | 申请日期 | 2012.04.01 |
| 申请人 | Hong Fu Jin Precision Industry (ShenZhen) Co., Ltd.;Hon Hai Precision Industry Co., Ltd. | 发明人 | Peng Fang-Ying;Huang Hai-Jo;Wang Sheng-An;Lee An-Tze;Liu Xiao-Na |
| 分类号 | G02B15/14;G02B27/64;G02B9/12;G02B15/177 | 主分类号 | G02B15/14 |
| 代理机构 | Novak Druce Connolly Bove + Quigg LLP | 代理人 | Novak Druce Connolly Bove + Quigg LLP |
| 主权项 | 1. A zoom lens system, in this order from an object side to an image side thereof, comprising: a first lens group of negative refractive power, the first lens group comprising, in this order from the object side to the image side of the zoom lens system, a first lens of negative refractive power and a second lens of positive refractive power; a second lens group of positive refractive power, the second lens group being capable of floating to realize an image stabilization function and comprising, in this order from the object side to the image side of the zoom lens system, a third lens of positive refractive power, a fourth lens of positive refractive power, a fifth lens of negative refractive power, and a sixth lens of positive refractive power; and a third lens group of positive refractive power, the third lens group comprising a seventh lens of positive refractive power; wherein the zoom lens system satisfies the following condition formula: 0.3<d2a/D2<0.4, where d2a is a length of the optical axis of the zoom lens system between an image-side surface of the fifth lens and an image-side surface of the sixth lens, and D2 is a length of an orthogonal projection of a connection line on the optical axis of the zoom lens system, the connection line connects between a point of the second lens group closest to the object side of the zoom lens system and a point of the second lens group closest to the image side of the zoom lens system; wherein the zoom lens system satisfies the following condition formula: 0.27<ψ1/L<0.31, where ψ1 is an effective radius of the first lens, and L is the total length of the zoom lens system in the telephoto state. | ||
| 地址 | Shenzhen CN | ||