LIGHT EMITTING DEVICE

A light emitting device according to embodiments includes a light emitting element emitting light with a peak wavelength of 420˜445 nm, a first phosphor emitting light with a peak wavelength of 485˜530 nm, a second phosphor emitting light with a peak wavelength of 530˜580 nm, and a third phosphor em...

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Bibliographic Details
Main Authors HATTORI YASUSHI, FUKUDA YUMI, ISHIDA KUNIO, KATO MASAHIRO, NUNOUE SHINYA
Format Patent
LanguageEnglish
Published 23.04.2015
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
SEMICONDUCTOR DEVICES
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Summary:A light emitting device according to embodiments includes a light emitting element emitting light with a peak wavelength of 420˜445 nm, a first phosphor emitting light with a peak wavelength of 485˜530 nm, a second phosphor emitting light with a peak wavelength of 530˜580 nm, and a third phosphor emitting light with a peak wavelength of 600˜650 nm. The device emits light having an emission spectrum that has a local minimum value of light intensity between a wavelength of 450˜470 nm or less, the local minimum value being 60% or less of a maximum value of light intensity at a longer wavelength side from the local minimum value, and the device emits light having a color temperature of 4600 K or higher and 5400 K or less.
Bibliography:Application Number: US201414471352