发明授权
- 专利标题: Optical glass
- 专利标题(中): 光学玻璃
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申请号: US13119751申请日: 2009-09-25
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公开(公告)号: US08298974B2公开(公告)日: 2012-10-30
- 发明人: Tatsuo Hidaka , Junichi Nakamura , Takuro Ikeda , Hidekazu Hashima , Kohei Fukumi , Naoyuki Kitamura , Junji Nishii
- 申请人: Tatsuo Hidaka , Junichi Nakamura , Takuro Ikeda , Hidekazu Hashima , Kohei Fukumi , Naoyuki Kitamura , Junji Nishii
- 申请人地址: JP Hyogo JP Tokyo
- 专利权人: Nihon Yamamura Glass Co, Ltd.,National Institute of Advanced Industrial Science and Technology
- 当前专利权人: Nihon Yamamura Glass Co, Ltd.,National Institute of Advanced Industrial Science and Technology
- 当前专利权人地址: JP Hyogo JP Tokyo
- 代理机构: Bacon & Thomas, PLLC
- 优先权: JP2008-245569 20080925
- 国际申请: PCT/JP2009/066597 WO 20090925
- 国际公布: WO2010/035770 WO 20100401
- 主分类号: C03C3/066
- IPC分类号: C03C3/066 ; C03C3/068
摘要:
An optical glass having a high refractive index (particularly preferably a refractive index of 1.6 or more), low dispersion (an Abbe number of 45 or more), a low deformation point, and improved resistance to devitrification upon molding, and suitable for precision-mold press molding or other molding processes and also suitable for transfer of a fine structure is provided. The optical glass contains 1.0-4.5 wt. % SiO2, 30.5-50.0 wt. % B2O3, 1.1-8.0 wt. % Li2O, 10.1-19.5 wt. % BaO, 15.5-30.0 wt. % ZnO, 3.0-15.0 wt. % Y2O3, and 10.0-19.5 wt. % La2O3.
公开/授权文献
- US20110172078A1 OPTICAL GLASS 公开/授权日:2011-07-14
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