Fluorophore and light emitting device

荧光体及发光装置

Abstract

本发明提供一种荧光体及发光装置,所述荧光体具有高温特性和长期可靠性且为高亮度,所述发光装置是使用了该荧光体的白色发光装置。本发明的荧光体具有:峰值波长为590nm以上至604nm以下、荧光强度为185%以上至210%以下的氧氮化物荧光体(A);峰值波长为615nm以上至625nm以下的氮化物荧光体(B),荧光体(A)、(B)的配比分别为4质量%以上至12质量%以下,荧光体(A)、(B)的总混合量为10质量%以上至24质量%以下。
This fluorophore comprises an oxynitride fluorophore (A) having a peak wavelength of 590 nm to 604 nm inclusive and a fluorescence intensity of 185% to 210% inclusive, and a nitride fluorophore (B) having a peak wavelength of 615 nm to 625 nm inclusive, wherein the mixing proportion of each of the oxynitride fluorophore (A) and the nitride fluorophore (B) is from 4 mass% to 12 mass% inclusive, and the total mixing amount of the oxynitride fluorophore (A) and the nitride fluorophore (B) is from 10 mass% to 24 mass% inclusive. This fluorophore has high luminance, good high-temperature characteristics, and long-term reliability.

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Patent Citations (4)

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