基本信息:
- 专利标题： 광학 글래스
- 专利标题（英）：Optical glass
- 专利标题（中）：光学玻璃
- 申请号：KR1020150180377 申请日：2015-12-16
- 公开(公告)号：KR1020160005314A 公开(公告)日：2016-01-14
- 发明人： 네기시도모아끼 , 조우쉐이에
- 申请人： 호야 가부시키가이샤
- 申请人地址： *-**-*, Nishi-Shinjuku, Shinjuku-ku, Tokyo, Japan
- 专利权人： 호야 가부시키가이샤
- 当前专利权人： 호야 가부시키가이샤
- 当前专利权人地址： *-**-*, Nishi-Shinjuku, Shinjuku-ku, Tokyo, Japan
- 代理人： 특허법인코리아나
- 优先权： JPJP-P-2008-168804 2008-06-27; JPJP-P-2009-138020 2009-06-09
- 主分类号： C03C3/066
- IPC分类号： C03C3/066 ; C03C3/068
Yet low dispersion refractive index is extremely high, and has excellent glass stability, and provides a less colored optical glass. An oxide glass, of a cation percentages, Si 4+ 0~30%, B 3+ 10~55%, Li +, Na +, and less than 5% of the K + in total, Mg 2+, Ca 2+ and Sr 2 less than 5% in total of a +, Ba 2+ 0~8%, Zn 2+ 0.1~15%, La 3+ 10~50%, Gd 3+ 0~20%, Y 3+ 0~15%, Yb 3 + 0~10%, Zr 4+ 0~20% , Ti 4+ 0.1~22%, Nb 5+ 0~20%, Ta 5+ 0~8%, W 6+ 0~5%, Ge 4+ 0 % ~8, Bi 3+ 0 - 10%, Al 3+ containing 0 - 10%, and the content of cations of Si 4+ to the content of B 3+ ratio Si 4+ / B 3+ is less than 1.0, an oxide is converted to the less than 14% by weight of the total content of Nb 2 O 5 and Ta 2 O 5, the optical glass is characterized in that the refractive index nd 1.92~2.2, and Abbe's number νd is 25-45.