Patent · US Active

Illumination apparatus confining light by total internal reflection and methods of forming the same

US9039244B2 · kind B2 · utility

6Cited by
186References
20Claims
0Family size

Assignee

Inventors

Key dates

Filing dateAug 20, 2014
Grant dateMay 26, 2015
Priority date
Expiry dateAug 20, 2034

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.