Multiple encapsulation of phosphor-LED devices
US5959316A · kind A · utility
772Cited by
5References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 1, 1998 |
| Grant date | Sep 28, 1999 |
| Priority date | — |
| Expiry date | Sep 1, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L2924/181
Abstract
A semiconductor device has a light-emitting diode covered by a transparent spacer which separates the LED from a uniformly thick fluorescent material containing layer such that there is a more uniform lighting of the fluorescent material containing layer to provide a uniform white light.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.