| 简介 |
A plurality of metal layers, ultraviolet to be water resistant for by improving the also in prolonging the life of a fluorescent substance that can material and light emitting device purpose : is provided to. Said to solve the, the device, phosphor particles (11) and a, the phosphor particles (11) the entire surface of a acrylic coating layer (12) is provided with, coating layer (12) the, rare earth oxide, aluminum oxide, yttrium and aluminum composite oxide, magnesium oxide and aluminum composite oxide magnesium at least the group consisting of 1, comprises a metal oxide species. A plurality of metal layers, ultraviolet to be water resistant for the and also in prolonging the life of an improved is enabled. |
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