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    • 2. 发明公开
    • An oxide phosphorescent glass capable of exhibiting a long lasting afterglow and photostimulated luminescence
    • 氧化物磷光玻璃能够表现持久的余辉和光激发光
    • EP0957069A3
    • 1999-11-24
    • EP99303328.1
    • 1999-04-28
    • SUMITA OPTICAL GLASS Co., Ltd.
    • Yamamoto, YoshinoriYamazaki, MasaakiSawanobori, NaruhitoNagahama, Shinobu
    • C03C3/062C03C3/068C03C4/12C03C3/253C03C4/04
    • C03C3/253C03C3/062C03C3/12C03C4/04C03C4/12C09K11/662C09K11/775C09K11/7775
    • The present invention provides an oxide glass capable of exhibiting a long lasting afterglow and photostimulated phosphorescence, whereby energy can be accumulated by radiation excitation, for example, by γ-rays, X-rays and UV-rays, light emission can be continued for a long time even after stopping the excitation. Furthermore, the long lasting afterglow and photostimulated luminescence oxide glass capable of exhibiting photostimulated luminescence by irradiation of infrared rays or visible rays can be used not only as a material for confirming an infrared laser or controlling an optical axis, but also as a material for recording or reproducing of γ-ray, X-ray or UV-ray images and further can be used as an optical recording material of a type that can be read. This glass material is represented, in term of atoms making up the glass, by the following chemical composition (mol %):
      GeO 2 21 to 80 % ZnO 0 to 50 % Ga 2 O 3 0 to 55 % (ZnO + Ga 2 O 3 = 3 to 55 %) Tb 2 O 3 0 to 10 % MnO 0 to 2 % (Tb 2 O 3 + MnO = 0.01 to 10 %) R 2 O 0 to 45 % (R: at least one atom selected from Li, Na, K and Cs) R'O 0 to 40 % (R': at least one atom selected from Mg, Ca, Sr and Ba) R 2 O + R'O 0.5 to 45 % SiO 2 0 to 50 % B 2 O 3 0 to 20 % Al 2 O 3 0 to 20 % Yb 2 O 3 0 to 7 % and Ln 2 O 3 0 to 5 % (Ln: at least one atom selected from Sm, Dy, Tm, Pr, Y, La, Gd, Lu and Nd)
    • 本发明提供一种氧化物玻璃,该氧化物玻璃能够表现出持续的余辉和光刺激的磷光,由此能量可以通过辐射激发例如γ射线,X射线和紫外线而累积,发光可以持续 即使在停止激励之后仍然很长时间。 此外,能够通过红外线或可见光的照射显示光刺激发光的持久余辉和光激发的氧化物玻璃不仅可以用作用于确认红外激光或控制光轴的材料,而且还可以用作记录材料 或再现γ射线,X射线或紫外线图像,并且还可以用作可读取类型的光学记录材料。 就构成玻璃的原子而言,该玻璃材料由以下化学组成(摩尔%)表示:GeO2 21至80%ZnO 0至50%Ga 2 O 3至55%(ZnO + Ga 2 O 3 = 3至55%)Tb 2 O 3至10 %MnO 2至2%(Tb 2 O 3 + MnO = 0.01至10%)R 2 O 0至45%(R:选自Li,Na,K和Cs中的至少一个原子)R'O 0至40% 选自Mg,Ca,Sr和Ba)R2O + R'O0.5至45%SiO20至50%B2O3 30至20%Al2O30至20%Yb2O30至7%和In2O330至5%(Ln:选自Sm ,Dy,Tm,Pr,Y,La,Gd,Lu和Nd)