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    • 10. 发明专利
    • Ultraviolet light-transmitting glass
    • 超紫外线发光玻璃
    • JP2013091593A
    • 2013-05-16
    • JP2012002267
    • 2012-01-10
    • Omg Co Ltdオーエムジー株式会社
    • TSUTSUMI TAKASHITAKESHITA HIROMI
    • C03C3/064C03C3/068C03C3/091C03C3/093C03C3/095
    • C03C3/064C03C3/066C03C3/068C03C4/0085
    • PROBLEM TO BE SOLVED: To provide ultraviolet light-transmitting glass which has excellent transmittance in the ultraviolet region of 300 nm or less.SOLUTION: Ultraviolet light-transmitting glass includes, in wt.% in terms of oxides, 10-40% of SiO, 10-40% of BO, 2-7.0% of AlO, 0-5% of LiO, 0-8% of NaO, 0-8.0% of KO (provided that LiO+NaO+KO=0-10%), 0-40% of CaO, 0-40% of BaO, 0-10% of ZnO (provided that CaO+BaO+MgO+SrO+ZnO=1-40%), 0-17% of YO, 0-18.0% of ZrO, 0-15.0% of LaO(provided that at least one of YO, ZrOand LaOis contained) and 0-0.5% of SbO. By having fine crystals deposit, a sample of the ultraviolet light-transmitting glass having a thickness of 2.0 mm has a transmittance at 250 nm of 60% or more.
    • 要解决的问题:提供在300nm以下的紫外线区域具有优异的透射率的紫外线透射玻璃。

      解决方案:紫外透光玻璃以氧化物计,以重量%计含有10-40%的SiO 2 ,10-40%的B 2 O 3 ,2-7.0%的Al 2 O 3 ,0 <5%的Li 2 O,0-8%的Na 2 ,0〜8.0%的K 2 2 O + Na 2 O / K 2 O = 0-10%),0-40%的CaO,0-40%的BaO,0-10%的ZnO CaO + BaO + MgO + SrO + ZnO = 1-40%),0-17%Y 2 ,0-18.0%的ZrO 2 ,0-15.0%的La 2 O 3 (条件是Y 2 O 3 中的至少一个,ZrO 2 3 ,并且Sb 2 O 3 。 通过具有微细的晶体沉积,厚度为2.0mm的紫外透光玻璃的样品在250nm处的透射率为60%以上。 版权所有(C)2013,JPO&INPIT