Electricity: circuit makers and breakers – Electric switch details – Indicators
Patent
1998-03-30
1999-05-11
Friedhofer, Michael A.
Electricity: circuit makers and breakers
Electric switch details
Indicators
200314, H01H9/00
Patent
active
059018364
ABSTRACT:
A lighting-knob-switch comprises a first light conductor shaped in a cylinder or an oval-top pillar. The first light conductor has a light interceptor (22B) having a concave slope on its rear end and has a lighting face (22A) on its front end. The lighting knob switch further comprises a knob which houses the first light conductor axially, an opening (21C) under the light interceptor (22B) of the first light conductor (22), and a first light emitter (35) under the light interceptor (22B). The light from the first light emitter (35) reflects on the light interceptor (22B) through the opening (21C) and arrives at the lighting face (22A). This construction allows the lighting face (22A) to receive even light at anytime, realizes an easy assembly work, and achieves an inexpensive cost.
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Friedhofer Michael A.
Matsushita Electric - Industrial Co., Ltd.
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