Variable color light emitting diode

Details Variable color light emitting diode Variable color light emitting diode

1989-04-17

1991-02-12

Laroche, Eugene R.

Electric lamp and discharge devices: systems

Plural load device systems

315324, 315167, 362800, 313303, H05B 4136

Patent

active

049927043

ABSTRACT:
A light emitting diode (LED) or lamp is disclosed herein programmable to emit a variety of colors or hues at the selection of the user having a unitary housing of clear molded solid epoxy supporting three light dies characterized as producing color hues of red, green and blue respectively. A common cathode is supported in the housing and wire leads interconnect the anode of each light die with the common cathode. Control circuits are operably coupled to anode leads and a common cathode lead for selectively energizing the light die anodes so that their respective color outputs visually combine to produce a desired color or hue.

REFERENCES:
patent: 4367464 (1983-01-01), Kurahashi et al.
patent: 4420711 (1983-12-01), Takahashi et al.

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