ILLUMINATED THUMBWHEEL SWITCH ASSEMBLY

ILLUMINATED THUMBWHEEL SWITCH ASSEMBLY

An electric switch assembly comprises a circuit board; a light source mounted on the circuit board; a thumbwheel knob rotatably mounted on the circuit board; a transparent surface that moves with the thumbwheel knob and on which a symbol is applied or formed; and a light guide for directing light fr...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: NEESE THOMAS A, ZINK DAVID E, EDWARDS CHARLES V
Format: Patent
Sprache:eng
Schlagworte:
BASIC ELECTRIC ELEMENTS
ELECTRIC SWITCHES
ELECTRICITY
EMERGENCY PROTECTIVE DEVICES
RELAYS
SELECTORS
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Beschreibung
Zusammenfassung:An electric switch assembly comprises a circuit board; a light source mounted on the circuit board; a thumbwheel knob rotatably mounted on the circuit board; a transparent surface that moves with the thumbwheel knob and on which a symbol is applied or formed; and a light guide for directing light from the light source to the transparent surface to illuminate the symbol.