LED PUSH-BUTTON SWITCH LIGHTING: A SUCCESSOR TO INCANDESCENT

摘要

Because the aircraft industry seeks high reliability, it began a push in the late 1980s for light emitting diode (LED) lighting to replace the failure-prone incandescent lamps. Aircraft operators thought that by using long-life LEDs, the problem of replacing failed incandescent lamps could be minimized. So in the early 1990s, some lighted push-button switch manufacturers began using flange-based LEDs, inserted into their push-button caps in place of the flange-base incandescent lamps.