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    • 9. 发明公开
    • Phosphor particle, phosphor blend, and fluorescent lamp
    • 磷磷腈,荧光素和荧光灯。
    • EP0257554A2
    • 1988-03-02
    • EP87112055.6
    • 1987-08-19
    • GTE PRODUCTS CORPORATION
    • Chenot, Charles F.Minnier, Henry B.Taubner, Fred R.Sigai, A. Gary
    • C09K11/67C09K11/59H01J61/44H01J61/48C09K11/02
    • H01J61/44C09K11/025C09K11/595C09K11/676H01J61/48
    • A phosphor particle having a continuous aluminum oxide coating surrounding its outer surface is provided. The phosphor substrate of the coated particle of the present invention is a manganese-activated zinc orthosilicate phosophor having the empirical formula:

          Zn (2.00-x-y) Mn x SiO (4.00-y) (WO₃) z

      wherein:

      0.04 ≦ x ≦ 0.15;
      0 ≦ y ≦ 0.05; and
      0 ≦ z ≦ 0.002.

      Also provided is a fluorescent lamp including a glass envelope wherein the inner wall of the glass envelope is coated with a coating comprising one or more layers of phosphor, at least one of the phosphor layers including a phosphor component comprising particles of manganese-activated zinc orthosilicate phosphor having the empirical formula:

          Zn (2.00-x-y) Mn x SiO (4.00-y) (WO₃) z

      wherein:

      0.04 ≦ x ≦ 0.15;
      0 ≦ y ≦ 0.05; and
      0 ≦ z ≦ 0.002,

      the particles of the manganese-activated zinc orthosilicate phosphor being individually coated with a continuous coating of aluminum oxide. A white-emitting phosphor blend is further provided. The white-emitting phosphor blend comprises a green-emitting phosphor component. The green-emitting phosphor component comprising particles of manganese-activated zinc orthosilicate phosphor having the empirical formula:

          Zn (2.00-x-y) Mn x SiO (4.00-y) (WO₃) z

      wherein:

      0.04 ≦ x ≦ 0.15;
      0 ≦ y ≦ 0.05; and
      0 ≦ z ≦ 0.002,

      the particles of the manganese-activated zinc orthosilicate phosphor being individually coated with a continuous coating of aluminum oxide.
    • 提供具有围绕其外表面的连续氧化铝涂层的荧光体颗粒。 本发明的涂覆颗粒的磷光体基质是具有以下经验式的锰活化的原硅酸锌磷光体:Zn(2.00-xy)Mn xSiO(4.00-y)(WO 3)z其中:0.04