LED module having a double diffuser
US9057497B2 · kind B2 · utility
1Cited by
2References
21Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 5, 2011 |
| Grant date | Jun 16, 2015 |
| Priority date | — |
| Expiry date | Jul 22, 2031 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21Y2115/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention relates to a LED module (7) which comprises: at least one LED chip (20, 21) mounted on a substrate, a first diffuser element (10) which scatters the light from the at least one LED chip (20, 21) diffusely, and a second diffuser element (8) which when viewed in the light beam direction is outside the first diffuser element (10) and is separated therefrom, preferably forming an air gap.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.