Signal element without a lamp

Details Signal element without a lamp Signal element without a lamp

1980-06-19

1982-07-20

Dixon, Harold A.

Radiant energy

Luminophor irradiation

250463, 250465, 250483, F21V 916, F21K 200

Patent

active

043408176

ABSTRACT:
A signal element without a lamp for use with signal buttons, toggle switches, control knobs, slide switches and the like which has a moveable member received in the housing member for movement between at least two positions to cause actuation of the part of the element characterized by a fluorescent member consisting of a body of material having an index of refraction >1 and containing fluorescent particles for fluorescently collecting and scattering incident light to create fluorescent light and means for uncoupling concentrated fluorescent light from the fluorescent member to a point of the element in response to a selected position of the moveable member in the housing member. The moveable member may be a push button, a pivotable rocking member or a slide and the fluorescent member may be carried by the moveable member or may be part of the housing, which receives the moveable member.

REFERENCES:
patent: 1420829 (1922-06-01), Frank
patent: 2032540 (1936-03-01), LaHodny
patent: 2428792 (1947-10-01), Evans
patent: 3037137 (1962-05-01), Motson
patent: 3237591 (1966-03-01), Pichel
patent: 3484607 (1969-12-01), McGuire et al.
patent: 3691985 (1972-09-01), Otterlei
patent: 3764200 (1973-10-01), Glattli

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