Light emitting device
US10910526B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 20, 2018 |
| Grant date | Feb 2, 2021 |
| Priority date | — |
| Expiry date | Apr 25, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10H20/825
- WIPO fieldSemiconductors
- WIPO sectorElectrical engineering
Abstract
Provided is a light emitting device including a first light emitting element having a light emission peak wavelength of 400 nm or more and 490 nm or less, a second light emitting element having a different light emission peak wavelength from the first light emitting element of 400 nm or more and 490 nm or less, a first fluorescent material that is a Ce-activated aluminate fluorescent material and excited by at least one of the first light emitting element and the second light emitting element and emits light having a light emission peak wavelength of 500 nm or more and 540 nm or less, and a second fluorescent material that is excited by at least one of the first light emitting element and the second light emitting element and emits light having a light emission peak wavelength of 600 nm or more and 680 nm or less.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.