Ceramic wavelength-conversion plates and light sources including the same
US8931922B2 · kind B2 · utility
1Cited by
6References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 22, 2012 |
| Grant date | Jan 13, 2015 |
| Priority date | — |
| Expiry date | Jul 24, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10H20/8515
Abstract
A wavelength-conversion plate is described herein. The wavelength conversion plate may include a converter of a first ceramic material and a reflector of a second ceramic material. The first ceramic material converts the primary light emitted by a light source such as a light emitting diode (LED) into a secondary light and the second ceramic material reflects the secondary light emitted by said converter. Preferably, the converter is inlaid into the reflector so that the reflector surrounds an outer edge of the converter. Such a configuration has an advantage of reducing unwanted side emissions from the converter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.