Phosphor containing Ce
US10214429B2 · kind B2 · utility
7Cited by
1References
22Claims
0Family size
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Key dates
| Filing date | Jun 29, 2017 |
| Grant date | Feb 26, 2019 |
| Priority date | — |
| Expiry date | Aug 17, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/02251
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A phosphor contains a crystal phase having a chemical composition CexM3-x-yβ6γ11-z. M is one or more elements selected from the group consisting of Sc, Y, La, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, and Lu. β contains Si in an amount of 50 mol % or more of a total mol of β. γcontains N in an amount of 80 mol % or more N of a total mol of γ. x satisfies 0<x≤0.6. y satisfies 0≤y≤1.0. z satisfies 0≤z≤1.0. The phosphor shows a maximum peak of an emission spectrum in a wavelength range of 600 nm or more and 800 nm or less and a first peak of an excitation spectrum in a wavelength range of 500 nm or more and 600 nm or less.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.