High power white LED lamp structure using unique phosphor application for LED lighting products
US6635987B1 · kind B1 · utility
129Cited by
16References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 26, 2000 |
| Grant date | Oct 21, 2003 |
| Priority date | — |
| Expiry date | May 29, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10H20/855
- WIPO fieldSemiconductors
- WIPO sectorElectrical engineering
Abstract
Phosphor application for high power LED lamps for use in lighting products includes a lensing structure and a phosphor layer applied to at least one side of the lensing structure. The lensing structure is positioned in the LED lamp so that emitted light from the LED die excites the phosphor layer. The lensing structure ensures both uniform color and light output as it eliminates the necessity of applying the phosphor layer directly to the LED die surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.