发明授权
- 专利标题: Adjustment structure for fast locating zoom lens
- 专利标题(中): 快速定位变焦镜头的调整结构
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申请号: US395357申请日: 1999-09-14
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公开(公告)号: US6163418A公开(公告)日: 2000-12-19
- 发明人: Hajime Okamoto
- 申请人: Hajime Okamoto
- 申请人地址: TWX Taipei
- 专利权人: Toptronic Industrial Co., Ltd
- 当前专利权人: Toptronic Industrial Co., Ltd
- 当前专利权人地址: TWX Taipei
- 优先权: TWX88114009 19990813
- 主分类号: G02B7/10
- IPC分类号: G02B7/10 ; G02B7/02 ; G02B15/14
摘要:
A zoom lens comprises a fixed cylinder, an outer movable cylinder, and an inner movable cylinder which is provided in the interior thereof with a shutter and a front group lens. The front group lens is fixed by an outer frame which is fastened with the shutter. The outer frame retains a chain plate capable of being driven by a rotary plate of the shutter. The chain plate has an indicator portion. The inner movable cylinder is provided in the inner wall thereof with a reference indicium, which is level with and aligned with the indicator portion of the chain plate at such time when the zoom lens is located at various focusing positions.
公开/授权文献
- US5586864A Turbine nozzle diaphragm and method of assembly 公开/授权日:1996-12-24
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