发明授权
US5977878A Control switch apparatus operable by an object placed adjacent thereto
and spaced therefrom
失效
控制开关装置可由与其相邻放置的物体操作并与之隔开
- 专利标题： Control switch apparatus operable by an object placed adjacent thereto and spaced therefrom
- 专利标题（中）： 控制开关装置可由与其相邻放置的物体操作并与之隔开
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申请号： US944092申请日： 1997-10-02
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公开(公告)号： US5977878A公开(公告)日： 1999-11-02
- 发明人: Robert K. Lang
- 申请人： Robert K. Lang
- 专利权人： Lang; Robert K.
- 当前专利权人： Lang; Robert K.
- 主分类号： H03K17/94
- IPC分类号： H03K17/94 ; H03K17/96 ; G08B5/00
摘要：
A "no touch", two state switch is controlled by light emitted thereby which is reflected back to the switch to actuate or deactuate the switch when reflected by a hand or other object spaced from but adjacent to the switch.
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