Electroluminescent lamp for illuminating push-button devices

Details Electroluminescent lamp for illuminating push-button devices Electroluminescent lamp for illuminating push-button devices

1996-04-17

1999-05-04

Husar, Stephen

Illumination

Light source or light source support and luminescent material

362 85, 362109, F21V 916

Patent

active

058995536

ABSTRACT:
The present invention is an electroluminescent device which proves a means for illuminating push-button devices such as television remote controllers, keypads for security systems, computer keyboards, beepers, night lights, telephones, portable emergency lighting, calculators, and like devices. The invention comprises a power supply which includes an electrical voltage inverter and a power source, and which is connected to a thin and flexible electroluminescent planar sheet containing embedded circuitry and powered by alternating current. The individual components are connected together by electrical leads. The thin electroluminescent lamp portion of the invention provides an even area of template illumination when it is placed over push buttons of an underlying device, and that device can then be used under low-level illumination, or even in complete darkness. Additionally, the present invention allows augmentation of existing illumination. The invention can be added during the manufacturing process, or it can be retrofitted by the end-user to upgrade devices already in use. The planar sheet can be manufactured to glow in one or more of several colors, to suit the needs of the manufacturer or end-user.

REFERENCES:
patent: 5063484 (1991-11-01), Tanaka
patent: 5073843 (1991-12-01), Magee
patent: 5203622 (1993-04-01), Sottile

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