Momentary switch that only connects for a brief time?

I am looking for a momentary switch that starts in the open position, and when pressed brushes past the closed position before going back to the open position even if the button is still depressed. I am trying to set up a switch for a driver that when pressed sends the little bit of power needed to activate a LED... show more I am looking for a momentary switch that starts in the open position, and when pressed brushes past the closed position before going back to the open position even if the button is still depressed. I am trying to set up a switch for a driver that when pressed sends the little bit of power needed to activate a LED that activated a photo sensor and starts the driver's programed directions.
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