发明申请
US20120238433A1 OPTICAL GLASS, GLASS MATERIAL FOR PRESS MOLDING, AND OPTICAL ELEMENT
有权
光学玻璃，玻璃材料用于压制成型和光学元件
- 专利标题： OPTICAL GLASS, GLASS MATERIAL FOR PRESS MOLDING, AND OPTICAL ELEMENT
- 专利标题（中）： 光学玻璃，玻璃材料用于压制成型和光学元件
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申请号： US13403696申请日： 2012-02-23
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公开(公告)号： US20120238433A1公开(公告)日： 2012-09-20
- 发明人: Yasuhiro Fujiwara , Yoshio Nojima
- 申请人： Yasuhiro Fujiwara , Yoshio Nojima
- 申请人地址： JP Tokyo
- 专利权人： HOYA CORPORATION
- 当前专利权人： HOYA CORPORATION
- 当前专利权人地址： JP Tokyo
- 优先权： JP2011-037349 20110223
- 主分类号： C03C3/21
- IPC分类号： C03C3/21 ; C03B11/00
摘要：
An optical glass in the form of an oxide glass, characterized by comprising, denoted as cation percentages: P5+ 14 to 36%; Bi3+ 12 to 34%; Nb5+ 12 to 34%; Ti4+ 5 to 20%; and W6+ 0 to 22%; wherein the total content of Bi3+, Nb5+, Ti4+, and W6+ is equal to or greater than 50%; and in that the Knoop hardness is equal to or higher than 370, the refractive index nd is equal to or higher than 2.02, and the Abbé number vd is equal to or lower than 19.0. A glass material for press molding and an optical element comprised of this optical glass. A method for manufacturing a glass material for press molding comprising the step of mechanically processing this optical glass.
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