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US 6,467,924 B2Granted
Keyboard having illuminated keys
OwnerMichael Shipmaninventor
Life of this patent
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Abstract
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. However, in a preferred embodiment, the light source is constructed of a substantially planar illuminescent sheet which underlies the light channeling membrane.
Claims5
A lighted computer keyboard comprising:
- a keyboard housing including an upper clamshell member, said upper clamshell member being at least partially translucent to channel light;
- a plurality of key members constructed of a substantially hard non-deformable material positioned within said keyboard housing;
- an elastic diaphragm underlying said key members for biasing said key members in an upward direction;
- a circuit board underlying said plurality of key members and said elastic diaphragm, said circuit board being operational to produce signals in response to depression of said key members;
- and
- a light source optically connected to said clamshell member for communicating light to said clamshell member, said clamshell member channeling light to at least some of said plurality of key members.
3 more elements
Dependencies are inferred from the claim text.