Slim waveguide coupling apparatus and method
US9164218B2 · kind B2 · utility
6Cited by
228References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 5, 2014 |
| Grant date | Oct 20, 2015 |
| Priority date | — |
| Expiry date | Sep 5, 2034 |
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.