Illuminated keyboard
US8581125B2 · kind B2 · utility
7Cited by
4References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 5, 2010 |
| Grant date | Nov 12, 2013 |
| Priority date | — |
| Expiry date | Sep 1, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2233/03
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An illuminated keyboard includes a supporting plate, a transparent frame plate, a key, a light source and a membrane switch circuit module. The light source is arranged between the key and the transparent frame plate. The transparent frame plate is disposed on said supporting plate for enhancing the structural strength of the illuminated keyboard. The light beam emitted by the light source is incident into the transparent frame plate, reflected by the supporting plate, and transmitted through the transparent frame plate, the membrane switch circuit module and the key. In such way, the key is illuminated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.