Light-emitting apparatus
US8304796B2 · kind B2 · utility
13Cited by
12References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 13, 2008 |
| Grant date | Nov 6, 2012 |
| Priority date | — |
| Expiry date | Apr 29, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K50/854
Abstract
Provided is a light-emitting apparatus in which light extraction efficiency of a light-emitting device is improved and viewing angle dependency of an emission color is reduced. The light-emitting apparatus includes a cavity structure and a periodic structure. When guided-wave light is diffracted by the periodic structure in a direction that forms an angle which is larger than 90° and smaller than 180° relative to a guided-wave direction of an optical waveguide in the cavity structure, a wavelength of the diffracted light becomes longer as the diffraction angle increases.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.