Narrow-band red photoluminescence materials for solid-state light emitting devices and filaments

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United States of America Patent

PATENT NO 11492550
APP PUB NO 20200270520A1
SERIAL NO

16628577

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Abstract

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Light emitting devices and LED-filaments comprise an excitation source (e.g. LED) and a photoluminescence material comprising a combination of a first narrow-band red photoluminescence material which generates light with a peak emission wavelength in a range 580 nm to 628 nm and a full width at half maximum emission intensity in a range 45 nm to 60 nm and a second narrow-band red photoluminescence material generates light with a peak emission wavelength in a range 628 nm to 640 nm and a full width at half maximum emission intensity in a range 5 nm to 20 nm. At least one of the first and second narrow-band red photoluminescence materials can comprise a narrow-band red phosphor or a quantum dot (QD) material.

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Patent Owner(s)

  • INTEMATIX CORPORATION

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Li, Yi-Qun Danville, US 228 5693

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