Light-emitting device, lighting device, light-emitting device assembly, and method for producing light-emitting device
US9172010B2 · kind B2 · utility
0Cited by
2References
7Claims
0Family size
Assignee
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Key dates
| Filing date | Feb 27, 2013 |
| Grant date | Oct 27, 2015 |
| Priority date | — |
| Expiry date | Apr 11, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10H20/856
- WIPO fieldSemiconductors
- WIPO sectorElectrical engineering
Abstract
A light-emitting device includes a substrate including a mirror surface region on its upper surface, a semiconductor light-emitting element disposed in the mirror surface region, and an encapsulating layer joined onto the upper surface of the substrate. The encapsulating layer includes a lower layer that is in contact with the upper surface of the substrate, covers the surrounding of the semiconductor light-emitting element, and contains phosphor; and an upper layer that is positioned on the lower layer, and has a larger phosphor content per unit area than that of the lower layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.