| 简介 |
Provided is a light emitting device with superior color rendering. The light emitting device comprises a light emitting element having a peak emission wavelength in a range of from 440 to 460 nm, and a phosphor member. As a phosphor, the phosphor member contains : a first phosphor having a peak emission wavelength in a range of from 440 to 550 nm and comprising at least one selected from the group consisting of an Eu-activated alkaline earth aluminate and an Eu-activated silicate containing Ca, Mg, and Cl; a second phosphor having a peak emission wavelength in a range of from 500 to 600 nm and comprising a Ce-activated rare earth aluminate; a third phosphor having a peak emission wavelength in a range of from 610 to 650 nm and comprising an Eu-activated silicon nitride containing Al and at least one selected from the group consisting of Sr and Ca; and a fourth phosphor having a peak emission wavelength in a range of from 650 to 670 nm and comprising a Mn-activated fluorogermanate.COPYRIGHT KIPO 2019 |
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