基本信息:
- 专利标题： Optical glass
- 专利标题（中）：光学玻璃
- 申请号：JP2007048436 申请日：2007-02-28
- 公开(公告)号：JP2008208009A 公开(公告)日：2008-09-11
- 发明人： MAEDA KOZO , MATSUMOTO HITOMI
- 申请人： Nihon Yamamura Glass Co Ltd , 日本山村硝子株式会社
- 专利权人： Nihon Yamamura Glass Co Ltd,日本山村硝子株式会社
- 当前专利权人： Nihon Yamamura Glass Co Ltd,日本山村硝子株式会社
- 优先权： JP2007048436 2007-02-28
- 主分类号： C03C3/21
- IPC分类号： C03C3/21 ; G02B1/00
摘要：
PROBLEM TO BE SOLVED: To solve a defect of a conventional phosphoric acid-based optical glass, to provide an optical glass containing no lead oxide, having a high refractive index, having a low glass yield point, suitable to a mold forming at low temperature and having an excellent weatherability and also to provide an optical glass capable of suppressing the deposition of a plutinum colloid from a plutinum crucible in the glass.
SOLUTION: The optical glass comprises 20-50 wt.% P
2 O
5 , 20-70 wt.% Sb
2 O
3 , 0.5-5 wt.% at least one kind of SnO and Ag
2 O, 0.5-3 wt.% at least one kind of ZrO
2 and TiO
2 and 0.5-30 wt.% at least one kind of Li
2 O, Na
2 O, K
2 O, MgO, CaO, SrO, BaO and ZnO.
COPYRIGHT: (C)2008,JPO&INPIT
摘要（中）：
SOLUTION: The optical glass comprises 20-50 wt.% P
2 O
5 , 20-70 wt.% Sb
2 O
3 , 0.5-5 wt.% at least one kind of SnO and Ag
2 O, 0.5-3 wt.% at least one kind of ZrO
2 and TiO
2 and 0.5-30 wt.% at least one kind of Li
2 O, Na
2 O, K
2 O, MgO, CaO, SrO, BaO and ZnO.
COPYRIGHT: (C)2008,JPO&INPIT
解决的问题为了解决现有的磷酸类光学玻璃的缺陷，提供不含氧化铅的光学玻璃，折射率高，玻璃屈服点低，适用于模具成型 并且具有优异的耐候性，并且还提供能够抑制从玻璃中的坩埚沉淀出来的普通胶体的光学玻璃。
解决方案：光学玻璃包含20-50重量％的P