Light emitting element
US11728625B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 11, 2018 |
| Grant date | Aug 15, 2023 |
| Priority date | — |
| Expiry date | Jan 1, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/2063
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A light emitting element of the present disclosure includes a compound semiconductor substrate 11, a stacked structure 20 including a GaN-based compound semiconductor, a first light reflection layer 41, and a second light reflection layer 42. The stacked structure 20 includes, in a stacked state a first compound semiconductor layer 21, an active layer 23, and a second compound semiconductor layer 22. The first light reflection layer 41 is disposed on the compound semiconductor substrate 11 and has a concave mirror section 43. The second light reflection layer 42 is disposed on a second surface side of the second compound semiconductor layer 22 and has a flat shape. The compound semiconductor substrate 11 includes a low impurity concentration compound semiconductor substrate or a semi-insulating compound semiconductor substrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.