Patent · US Active

Slim waveguide coupling apparatus and method

US9470837B2 · kind B2 · utility

5Cited by
2References
22Claims
0Family size

Assignee

Inventors

Key dates

Filing dateSep 10, 2015
Grant dateOct 18, 2016
Priority date
Expiry dateSep 10, 2035

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG02B6/0076
  • WIPO fieldElectrical machinery, apparatus, energy
  • WIPO sectorElectrical engineering

Abstract

In various embodiments, an illumination structure includes a discrete light source disposed proximate a bottom surface of a waveguide and below a depression in a top surface thereof. A top mirror may be disposed above the discrete light source to convert modes of light emitted from the discrete light source into trapped modes, thereby increasing the coupling efficiency of the illumination structure.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.