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US 2003/0146687 A1Published application
High-luminance phosphor layer
AssigneeSumitomo Chemical Company, Limited
InventorsKeiji Ono, Susumu Miyazaki
Life of this patent
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Abstract
A phosphor layer having a high luminance, and a vacuum ultra-violet radiation excited light emitting element are provided. A phosphor layer having a voidage of not less than 60 vol %, the phosphor layer in which a phosphor having a BET specific surface area of not less than 3 m2/g is used, and a vacuum ultra-violet radiation excited light emitting element are provided.
Claims3
A phosphor layer having a voidage of not less than 60 vol % and comprising a phosphor having a BET specific surface area of not less than 3 m2/g.
Dependencies are inferred from the claim text.