| 简介 |
Provided is a light emitting device having excellent color rendering properties. The light emitting device comprises a light emitting element having a light emitting peak wavelength in a range of 410 to 440 nm, and a fluorescent member. The fluorescent member includes : a first phosphor, as a phosphor, having a light emission peak wavelength in a range of 430 to 500 nm, and containing an alkaline earth phosphate having Cl in the composition thereof and activated with Eu; a second phosphor having a light emission peak wavelength in a range of 440 to 550 nm, and containing at least one of alkaline earth aluminate activated with Eu and a silicate having Ca, Mg, and Cl in the composition thereof and activated with Eu; a third phosphor having a light emission peak wavelength in a range of 500 to 600 nm, and containing a rare earth aluminate salt activated with Ce; a fourth phosphor having a light emission peak wavelength in a range of 610 to 650 nm, and containing at least one of Sr and Ca, and a silicon nitride having Al in the composition thereof and activated with Eu; and a fifth phosphor having a light emission peak wavelength in range of 650 to 670 nm, and containing a fluoro-germanate activated with Mn.COPYRIGHT KIPO 2017 |
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