LIGHT EMITTING DEVICE AND LIGHTING FIXTURE PROVIDED WITH THE SAME

LIGHT EMITTING DEVICE AND LIGHTING FIXTURE PROVIDED WITH THE SAME

Provide is a light emitting device, including: a light emitting element including a light emission peak wavelength in a range of 440 nm or more and 470 nm or less; a first fluorescent material having a light emission peak wavelength in a range of 480 nm or more and 518 nm or less; a second fluoresce...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: WAKUI, Sadakazu, FUJIO, Kazushige
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
ADHESIVES
BASIC ELECTRIC ELEMENTS
CHEMISTRY
DYES
ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE
METALLURGY
MISCELLANEOUS APPLICATIONS OF MATERIALS
MISCELLANEOUS COMPOSITIONS
NATURAL RESINS
PAINTS
POLISHES
SEMICONDUCTOR DEVICES
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Beschreibung
Zusammenfassung:Provide is a light emitting device, including: a light emitting element including a light emission peak wavelength in a range of 440 nm or more and 470 nm or less; a first fluorescent material having a light emission peak wavelength in a range of 480 nm or more and 518 nm or less; a second fluorescent material having a light emission peak wavelength in a range of 510 nm or more and less than 590 nm and having an x value of the chromaticity coordinate in CIE1931 in a range of 0.27 or more and 0.40 or less; and a third fluorescent material having a light emission peak wavelength in a range of 590 nm or more and 670 nm or less. The light emitting device is capable of reducing the human eye fatigue and having a light emission spectrum with excellent visual work.