06918677 is referenced by 180 patents and cites 46 patents.

A keyboard is provided having illuminating keys. The keyboard includes a light channeling membrane and key members constructed at least partially of translucent material so that light produced from a light source is channeled upwardly to the upper surfaces of the key members. The light source may include LED or LEC systems in adjoining relationship to the light channeling membrane or light pipe. In a preferred embodiment, the light source is constructed of a substantially planar illuminescent sheet which underlies the light channeling membrane. In an alternative preferred embodiment, a light pipe is constructed to illuminate light laterally along a portion of its length to illuminate a plurality of key members.

Illuminated keyboard
Application Number
Publication Number
6918677 (B2)
Application Date
November 14, 2002
Publication Date
July 19, 2005
Michael Shipman
San Clemente, 92673
Drummond & Duckworth
G01D 011/28
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