发明申请
- 专利标题： OPTICAL GLASS
- 专利标题（中）： 光学玻璃
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申请号： US12557943申请日： 2009-09-11
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公开(公告)号： US20100004112A1公开(公告)日： 2010-01-07
- 发明人: Hiroyuki OHKAWA , Naoki Sugimoto
- 申请人： Hiroyuki OHKAWA , Naoki Sugimoto
- 申请人地址： JP Tokyo
- 专利权人： Asahi Glass Company, Limited
- 当前专利权人： Asahi Glass Company, Limited
- 当前专利权人地址： JP Tokyo
- 优先权： JP2007-065189 20070314
- 主分类号： C03C3/253
- IPC分类号： C03C3/253 ; C03C3/21
摘要：
An object of the present invention is to provide an optical glass having optical constants of a refractive index of 1.70 to 1.89 and an Abbe number of 20 to 30 and being excellent in chemical durability. The invention relates to an optical glass containing P2O5: 10 to 30, Nb2O5: 25 to 50, B2O3: 0.1 to 30, BaO: 0.1 to 2, Li2O: 0 to 10, Na2O: 0.1 to 4, K2O: 0 to 10, Bi2O3: 1 to 20, GeO2: 0 to 14, TiO2: 0.1 to 5, and WO3: 1 to 14, in terms of % by mass.
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