Switch with electroluminescent indicator

Details Switch with electroluminescent indicator Switch with electroluminescent indicator

1976-03-23

1978-02-21

Truhe, J. V.

Electricity: circuit makers and breakers

Electric switch details

Indicators

313509, 337 79, H01H 916

Patent

active

040754499

ABSTRACT:
Electroluminescent elements comprising a ferroelectric sintered ceramic body as a substrate, a luminescent layer applied on the body, a transparent electrode layer applied on the luminescent layer and an electrode layer applied on other side of the body and having improved withstand voltage properties. The electroluminescent elements are suitable for the indication of location of switch members or the like at the switching-off condition.

REFERENCES:
patent: 2015698 (1935-10-01), Tiffany
patent: 2251540 (1941-08-01), Buschbeck et al.
patent: 2702329 (1955-02-01), Dietz, Jr. et al.
patent: 3247414 (1966-04-01), Levetan
patent: 3283194 (1966-11-01), Rulon
patent: 3349240 (1967-10-01), Brown
patent: 3379915 (1968-04-01), Sentementes et al.
patent: 3573532 (1971-04-01), Boucher
patent: 3735077 (1973-05-01), Ohashi
patent: 3743805 (1973-07-01), Guinan

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