LED device and preparation method thereof
US9784420B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 24, 2016 |
| Grant date | Oct 10, 2017 |
| Priority date | — |
| Expiry date | Apr 4, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10H20/882
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention provides a light-emitting diode (LED) device and a method for manufacturing the same. The LED device comprises: a substrate (1); a chip (2) disposed on the substrate (1); and a first lens (3) disposed on the substrate (1) and spaced from the chip (2); wherein the first lens (3) comprises luminescent powder (7) and at least one of light-diffusing particles (8) and light-reflecting particles (10). The LED device provided by the present invention has a high luminous efficiency, and solves the problem in the prior art that the LED device has a small angle of emergence and the emergent light emergence lacks of uniformity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.