Lighting device and lamp comprising said lighting device
US8992046B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Apr 1, 2010 |
| Grant date | Mar 31, 2015 |
| Priority date | — |
| Expiry date | Aug 19, 2031 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21Y2115/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A luminous means (1) comprising a multiplicity of light emitting diodes (10) arranged in a manner distributed three-dimensionally and a screen (11) formed from a radiation-opaque or translucent material, wherein the screen (11) encloses the light emitting diodes at least in places, wherein the screen (11) has a multiplicity of perforations disposed downstream of the light emitting diodes (10) in the emission direction, and wherein light emitted by the light emitting diodes (10) during operation of the luminous means passes through the perforations (12).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.