Illuminated keyboard

Details Illuminated keyboard Illuminated keyboard

1981-04-13

1982-12-21

Scott, J. R.

Electricity: circuit makers and breakers

Multiple circuit control

Multiple switch

200314, H01H 1370

Patent

active

043651208

ABSTRACT:
An apparatus for illuminating keyboard or individual switches in which a conventional plastic contact actuator member is fabricated of translucent material so that it may function additionally as a conductor and diffuser of light. A lamp source is positioned in the center of a conventional dome-printed circuit switch within holes provided in the metal contact domes and the substrate of the switch. The actuator includes a cylindrical lower hood portion having a recess in the center thereof permitting it to receive the lamp source upon switch actuation.

REFERENCES:
patent: 4056701 (1977-11-01), Weber
patent: 4088855 (1978-05-01), Emery
patent: 4163138 (1979-07-01), Harden
patent: 4262182 (1981-04-01), Basler et al.
patent: 4264799 (1981-04-01), Aspden
patent: 4302647 (1981-11-01), Kandler et al.
patent: 4320268 (1982-03-01), Brown

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