Illuminated keyboard
US4365120A · kind A · utility
38Cited by
7References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 13, 1981 |
| Grant date | Dec 21, 1982 |
| Priority date | — |
| Expiry date | Apr 13, 2001 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H13/83
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An apparatus for illuminating keyboard or individual switches in which a conventional plastic contact actuator member is fabricated of translucent material so that it may function additionally as a conductor and diffuser of light. A lamp source is positioned in the center of a conventional dome-printed circuit switch within holes provided in the metal contact domes and the substrate of the switch. The actuator includes a cylindrical lower hood portion having a recess in the center thereof permitting it to receive the lamp source upon switch actuation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.