Key pad and keypad assembly

Details Key pad and keypad assembly Key pad and keypad assembly

2007-06-18

2008-11-04

Friedhofer, Michael A (Department: 2832)

Electricity: circuit makers and breakers

Electric switch details

Indicators

C200S341000

Reexamination Certificate

active

07446275

ABSTRACT:
A keypad includes a light guide panel, the interior of which light propagates through; at least one key button positioned on the upper surface of the light guide panel; and at least one reflective pattern fixedly positioned with respect to the light guide panel to reflect a part of the light, which propagates through the interior of the light guide panel, towards the key button.

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