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    • 8. 发明申请
    • Photoelectric switch
    • 光电开关
    • US20080173797A1
    • 2008-07-24
    • US11655632
    • 2007-01-19
    • William C. SanfordHenry V. FletcherTrevor M. Laib
    • William C. SanfordHenry V. FletcherTrevor M. Laib
    • H03K17/78
    • H03K17/968H03K17/78
    • A photoelectric switch is disclosed. An illustrative embodiment of the photoelectric switch includes at least one light source, a reflective surface provided in light-receiving relationship with respect to the at least one light source, a release button engaging the reflective surface and positional between first and second positions, a photocell provided in light-receiving relationship with respect to the reflective surface when the release button is disposed in the first position, a latch control circuit connected to the photocell and a latch connected to the latch control circuit. The light path incorporates a collimator to restrict operation of the system to the relationship of the light source and the retroreflector.
    • 公开了一种光电开关。 光电开关的说明性实施例包括至少一个光源,相对于至少一个光源以光接收关系提供的反射表面,接合反射表面的释放按钮以及位于第一和第二位置之间的光电元件 当释放按钮被布置在第一位置时,以相对于反射表面的光接收关系提供,与光电管连接的锁存控制电路和连接到锁存器控制电路的锁存器。 光路包括准直器,以限制系统的操作与光源和后向反射器的关系。