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US 2021/0193880 A1Published application
Mining unexplored chemistries for phosphors for high-color-quality whitelight-emitting diodes
AssigneeThe Regents of the University of California
InventorsShyue Ping ONG, Jungmin HA, Zhenbin WANG, Joanna MCKITTRICK, Won Bin IM, Yoon Hwa KIM
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Abstract
A light emitting diode (LED) assembly includes an LED light source having a first light output with a characteristic spectrum and at least one phosphor through which the first light output passes. The phosphor includes the quaternary compound M-Li—Al—O, where M is Ba, Sr, or Ca, activated by Eu2+ or Ce3+.
Claims9
A light emitting diode (LED) assembly, comprising:
- an LED light source having a first light output with a characteristic spectrum;
- and
- at least one phosphor through which the first light output passes, the at least one phosphor including a quaternary compound M-Li—Al—O, where M is Ba, Sr, or Ca, activated by Eu2+ or Ce3+.
A light emitting diode (LED) assembly, comprising:
- an LED light source having a first light output with a characteristic spectrum with a peak emission at a blue or near ultraviolet wavelength;
- and
- at least one phosphor through which the first light output passes, the at least one phosphor including a quaternary compound Sr—Li—Al—O, activated by Eu2+ or Ce3+.
Dependencies are inferred from the claim text.