<Li> 1981 Thorn Lighting Group exhibits the ceramic discharge metal - halide lamp . </Li> <Li> 1985 Osram answers with the first electronic Energy Saving Lamps to be very successful </Li> <Li> 1987 Ching W. Tang and Steven Van Slyke at Eastman Kodak create the first practical organic light - emitting diode (OLED). </Li> <Li> 1990 Michael Ury, Charles Wood, and several colleagues develop the sulfur lamp . </Li>

Who invented fluorescent lighting and an induction motor