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US 5,899,553 AGranted
Electroluminescent lamp for illuminating push-button devices
OwnerMontgomery Brook Howellinventor
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OwnerMontgomery Brook Howellinventor
Estimating the term…
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.
An illumination source on an underlying device with push buttons, the illumination source comprising:
A method of electroillumination of an underlying device with push buttons, wherein an illumination source is added by:
A method of electroilluminating underlying devices comprising the steps of:
Dependencies are inferred from the claim text.