Lighted switch sheet and lighted switch unit using the same

Details Lighted switch sheet and lighted switch unit using the same Lighted switch sheet and lighted switch unit using the same

2005-11-01

2005-11-01

Luebke, Renee (Department: 2833)

Electricity: circuit makers and breakers

Electric switch details

Indicators

Reexamination Certificate

active

06960733

ABSTRACT:
A lighted switch sheet of the invention has a structure, which comprises a sheet having a plurality of movable contacts of a hemispherical shape disposed in a plurality of fixing holes, and an EL element affixed on an upper surface of the sheet. The EL element has an optically transmitting substrate provided with an optically transmitting electrode layer, light-emitting layer and back electrode layer formed in an overlapping manner on an underside surface thereof, and through holes of a size slightly smaller than an outer diameter of the movable contacts formed above their respective movable contacts. The invention provides for the lighted switch sheet with a small number of structural components and a simple structure at low cost.

REFERENCES:
patent: 4320268 (1982-03-01), Brown
patent: 6369801 (2002-04-01), Boireau et al.
patent: 6467924 (2002-10-01), Shipman
patent: 6590508 (2003-07-01), Howell et al.
patent: 6747402 (2004-06-01), Hato et al.
patent: 6764191 (2004-07-01), Douzono et al.

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