Luminous keyboard having translucent light diffusing rubber domes
US10600591B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 13, 2018 |
| Grant date | Mar 24, 2020 |
| Priority date | — |
| Expiry date | Nov 13, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2219/062
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
This application provides a luminous keyboard, including a plurality of keys, a plurality of keys, a light guide plate, and a reflector. Each of the keys includes a rubber dome, where the rubber dome is made of a translucent material doped with a plurality of light-diffusion particles, and when the rubber dome is irradiated by a light ray, a part of the light ray is diffused when traveling upward through the rubber dome, and the other part of the light ray is reflected downward by the rubber dome to the reflector, then, is reflected upward, and is diffused when passing by a plurality of light diffusion protrusions of the light guide plate, to be emitted outward through the keys.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.