| 发明名称 |
ZOOM LENS SYSTEM |
| 摘要 |
A zoom lens system that includes a first lens group including at least one lens and having a negative refractive power, and a second lens group including at least one lens and having a positive refractive power in an order from an object side to an image side, wherein the zoom lens system is configured to perform zooming by changing a distance between the first lens group and the second lens group and satisfies: 2<|f1/fw|<2.5 and 0.60<|f1/f2|<0.85, wherein f1 indicates a synthetic focal length of the first lens group, fw indicates an overall focal length at a wide angle end, and f2 indicates a synthetic focal length of the second lens group. |
| 申请公布号 |
US2014198392(A1) |
申请公布日期 |
2014.07.17 |
| 申请号 |
US201313955666 |
申请日期 |
2013.07.31 |
| 申请人 |
SAMSUNG TECHWIN CO., LTD. |
发明人 |
HAN Hee-Joong |
| 分类号 |
G02B13/04 |
主分类号 |
G02B13/04 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A zoom lens system comprising, in an order from an object side to an image side:
a first lens group comprising at least one lens and having a negative refractive power; and a second lens group comprising at least one lens and having a positive refractive power, wherein the zoom lens system is configured to perform zooming by changing a distance between the first lens group and the second lens group and satisfies:
2<|f1/fw|<2.5, and0.60<|f1/f2|<0.85, wherein f1 indicates a synthetic focal length of the first lens group, fw indicates an overall focal length at a wide angle end, and f2 indicates a synthetic focal length of the second lens group. |
| 地址 |
Changwon-city KR |
