| 发明名称 | Zoom lens | ||
| 摘要 | A zoom lens includes an external frame, a rotary shaft, an internal frame, a lens group and a spring. The internal frame is connected to the external frame via the rotary shaft, so that the internal frame is rotatable relative to the external frame. The lens group is fixed in the internal frame. The spring comprises a deformation part and two extension parts extended from the deformation part, wherein one extension part is propped against the internal frame and inclined at an acute angle relative to the rotary shaft, and the other extension part is propped against the external frame. | ||
| 申请公布号 | US8988788(B2) | 申请公布日期 | 2015.03.24 |
| 申请号 | US201314071799 | 申请日期 | 2013.11.05 |
| 申请人 | Sintai Optical (Shenzhen) Co., Ltd.;Asia Optical International Ltd. | 发明人 | Huang Duen-Kwei;Chang Ming-Chih |
| 分类号 | G02B7/04;G02B15/14;G02B7/10;G02B7/02 | 主分类号 | G02B7/04 |
| 代理机构 | McClure, Qualey & Rodack, LLP | 代理人 | McClure, Qualey & Rodack, LLP |
| 主权项 | 1. A zoom lens, comprising: an external frame; a rotary shaft; an internal frame connected to the external frame via the rotary shaft so that the internal frame is rotatable relative to the external frame; a lens group fixed in the internal frame; and a spring comprising a deformation part and two extension parts extended from the deformation part, wherein one extension part is propped against the internal frame and inclined at an acute angle θ relative to the rotary shaft, and the other extension part is propped against the external frame. | ||
| 地址 | Shenzhen, Guandong Province CN | ||