High-power white LEDs
US9105816B2 · kind B2 · utility
5Cited by
91References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 4, 2014 |
| Grant date | Aug 11, 2015 |
| Priority date | — |
| Expiry date | Feb 4, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10H20/882
Abstract
A light emitting apparatus has a first radiation source without a dome, a substantially transparent and light transmissive optic device devoid of scattering particles and phosphor, a lens, a down conversion material containing phosphor that is disposed on the planar top surface of the optic device between the lens and the radiation source, and a heat sink, upon which the radiation source is mounted, having a recess formed therein in which the radiation source, the optic device and the down conversion material are positioned, wherein an air space is defined between a boundary of the recess and the optic device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.