Lighting apparatus having improved light output uniformity and thermal dissipation
US9347624B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 16, 2015 |
| Grant date | May 24, 2016 |
| Priority date | — |
| Expiry date | Jan 16, 2035 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21Y2115/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present disclosure involves a lighting apparatus. The lighting apparatus includes a photonic device that generates light. The lighting apparatus includes a printed circuit board (PCB) on which the photonic device is located. The lighting apparatus includes a diffuser cap having a curved profile covering the PCB and the photonic device. The diffuser cap has a textured surface for scattering light generated by the photonic device. The lighting apparatus includes a thermally conductive cup that surrounds the diffuser cap and thermal conductively coupled to the PCB. The cup has a reflective inner surface that reflects light transmitting through the diffuser cap. The lighting apparatus includes a heat dissipation structure for dissipating heat generated by the photonic device. The heat dissipation structure is thermally coupled to the cup.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.