Patent · US Active

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

US10534124B2 · kind B2 · utility

0Cited by
7References
20Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMar 28, 2018
Grant dateJan 14, 2020
Priority date
Expiry dateMar 28, 2038

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.