Apparatus for illuminating keyboards

Details Apparatus for illuminating keyboards Apparatus for illuminating keyboards

1997-03-17

1998-04-28

Walczak, David J.

Electricity: circuit makers and breakers

Electric switch details

Indicators

200DIG47, H01H 900

Patent

active

057433810

ABSTRACT:
An apparatus for illuminating the keys on keyboards includes a relatively thin transparent material having a plurality of through apertures providing clearance for each of the keys of the keyboard that are to be received therein for illuimination. The surfaces and external edges of the relatively thin transparent material is treated to prevent light from escaping therefrom, with the internal edges of the clearance through apertures being left clear for permitting the light to excape therefrom, thereby illuminating each of the keys. A bracket is adapted to removably retained a light source in the thin transparent material and permits the orientation of the light rays emanating from the light source to enter into an edge of the relatively thin transparent material. The light source is coupled to an electrical power source power and includes a fuse and an on/off switch.

REFERENCES:
patent: 3213269 (1965-10-01), Melvin et al.
patent: 3619591 (1971-11-01), Kerski
patent: 4343975 (1982-08-01), Sado

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