LED light source
US7246931B2 · kind B2 · utility
160Cited by
7References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 13, 2005 |
| Grant date | Jul 24, 2007 |
| Priority date | — |
| Expiry date | Dec 13, 2025 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21Y2115/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A tube type light emitting diode light source including a light source generator, a light guide and a diffuser is provided. The light source generator includes LEDs arranging in a line. The light guide has a grooved light incident surface and a grooved light-guiding surface. The grooved light incident surface encompasses the LEDs, and the grooved light-guiding surface is adapted for changing the propagating direction of an incident light. The diffuser covers the light guide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.