77517405
Jul 8, 2008
Jul 26, 2011
Contactless electrical switches, light sensors, sensors operable to convert incident light into an output frequency, sensors operable to convert incident light into an output voltage LED light closed loop controls for controlling the emitted light intensity of an LED, optical switches, and integrated circuits (ASIC) for detecting incident light consisting of at least one of a contactless switch, a light sensor, a light to frequency sensor, a light to voltage sensor, an LED light closed loop control, or an optical switch
Electrical and Scientific Apparatus