Light emitting device with cooling elements
US10310277B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 22, 2016 |
| Grant date | Jun 4, 2019 |
| Priority date | — |
| Expiry date | Apr 22, 2036 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21Y2115/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A light emitting device (1) comprising a first light source (21) and a second light source (22), a luminescent element (4) comprising a first light input surface (41), a second light input surface (42), a light exit surface (43), a first further surface (44) and a second further surface (45), a first cooling assembly (5) and a second cooling assembly (6), the first cooling assembly (5) comprising a first cooling element (52) and a first light source board (51) on which one of the light sources is mounted, and the second cooling assembly (6) comprising a second cooling element (62) and a second light source board (61), on which the other one of the light sources is mounted, and the second cooling assembly (6) being arranged with a surface (621) in mechanical and thermal contact with the first further surface (44) of the luminescent element thereby forming a first interface and the first cooling assembly (5) being arranged with a surface (521) in mechanical and thermal contact with the second further surface (45) of the luminescent element thereby forming a second interface, the first interface and the second interface comprising a flatness of less than 10 μm, and the root mean squar…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.