Illumination apparatus confining light by total internal reflection and methods of forming the same
US9547114B2 · kind B2 · utility
4Cited by
0References
20Claims
0Family size
Assignee
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Key dates
| Filing date | Apr 21, 2015 |
| Grant date | Jan 17, 2017 |
| Priority date | — |
| Expiry date | Jul 27, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10H20/854
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In various embodiments, an illumination apparatus includes an air gap between a sub-assembly and a waveguide attached thereto at a plurality of discrete attachment points, as well as a bare-die light-emitting diode encapsulated by the waveguide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.