Batwing LED with remote phosphor configuration
US8497519B2 · kind B2 · utility
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2References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 24, 2011 |
| Grant date | Jul 30, 2013 |
| Priority date | — |
| Expiry date | Dec 15, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10H20/851
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An LED emitter uses a molded lens with phosphor material embedded in a circumferential trench to generate a batwing beam pattern. After the lens is molded over a package substrate with connected LED dies thereon, the phosphor material is molded, injected, or dispensed into a circumferential trench. The molded lens is shaped such that a majority of the light emitted by the one or more LED dies is reflected by the top surface to the side surfaces through the phosphor material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.