Method and apparatus for directing light to a display and other features in a device
US7048401B2 · kind B2 · utility
16Cited by
5References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 17, 2003 |
| Grant date | May 23, 2006 |
| Priority date | — |
| Expiry date | Aug 24, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/0006
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A lighting system for a portable electronic device or handheld computer is disclosed. In one embodiment, the lighting system includes a light source coupled to a light distributing element. The light distributing element is coupled to a phosphorescent material. The phosphorescent material is coupled to a display and/or input device. The light source pulses on and off to maintain light at a display and/or input device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.