INDICATEUR D'ETAT LUMINESCENT

摘要

Luminescent indicators are disclosed employing at least two solid state light emitting devices packaged on a single header. The devices have one "state" at low currents or voltages and have another "state" at higher currents or voltages. A change of state of the devices may cause either the color of the status indicator to change or the light from the status indicator to change from continuous to flashing. The status indicator may provide a continuous change of state or a series of discrete levels or states. The light emitting devices are preferably semiconductor p-n junction devices with the logic or switching element of the devices packaged on the same header either as a separate circuit or incorporated into the light emitting semiconductor devices themselves. The status indicators have two or more terminals depending on the specific desired application.