Ambient light sensor touch switch system and method

Details Ambient light sensor touch switch system and method Ambient light sensor touch switch system and method

H - Electricity

01

G

340/179, 340/124

H01G 9/20 (2006.01) H01G 9/00 (2006.01) H01J 40/14 (2006.01)

Patent

CA 1167946

9D-HR-14540 ABSTRACT OF THE DISCLOSURE An ambient light responsive touch switch system for producing a signal whenever ambient light impinging on a photoelectric detector at a switch location is altered relative to the ambient light sensed by a photoelectric detector at a non-switch location. The system includes means for comparing the intensity of light between the photoelectric detector at a switch location relative to the intensity of ambient light at a non-switch location and a logic system that will produce a signal when the intensity of ambient light at the switch location is altered relative to the ambient light at the non-switch location.

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