Self-lighting type push button input device

Details Self-lighting type push button input device Self-lighting type push button input device

2007-09-04

2007-09-04

Singh, Ramnandan (Department: 2614)

Telephonic communications

Supervisory or control line signaling

Substation originated

C379S433070

Reexamination Certificate

active

10960763

ABSTRACT:
A self-lighting type push-button input device according to the presently disclosed subject matter can include a button base portion formed of a transparent material. Holes can be formed in predetermined positions of the button base portion, and spring portions can be formed integrally with the holes by molding transparent silicone rubber with a light diffusing agent incorporated therein. The button base portion serves as a light conducting portion, and the spring portions can uniformly diffuse the light distributed thereto by the light conducting portion, whereby lighting can be effected by a reduced number of light sources, effecting a reduction of size and cost.

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European Search Report for European Appl. No. 04024198.6 (Mar. 1, 2005).

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