Lighting device comprising a color conversion unit
US8044570B2 · kind B2 · utility
6Cited by
2References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 20, 2009 |
| Grant date | Oct 25, 2011 |
| Priority date | — |
| Expiry date | Oct 20, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10H20/854
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A lighting device includes a printed wiring board, a plurality of light-emitting elements, a sealing member, and a color conversion unit, and an adhesive layer. The sealing member has light transmitting properties and seals the light-emitting elements mounted on the printed wiring board. The color conversion unit includes a cover member of light transmitting properties, and a fluorescent substance layer provided on the inner surface of the cover member. The adhesive layer has light-transmitting properties, and adheres the sealing member to the fluorescent substance layer of the color conversion unit in an airtight manner.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.