WAVELENGTH CONVERSION MEMBER AND LIGHT EMITTING DEVICE USING SAME
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United States of America Patent
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Sep 5, 2024
app pub date -
Apr 25, 2024
filing date -
Apr 25, 2018
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Abstract
Provided is a wavelength conversion member which is made of a phosphor powder dispersed in a glass matrix and has an excellent luminous efficiency. A wavelength conversion member is comprising: a phosphor powder dispersed in a glass matrix, wherein the glass matrix has a refractive index (nd) of 1.6 or more and a liquidus temperature of 1070° C. or below.
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