发明授权
- 专利标题: High-index glasses that absorb UV radiation
- 专利标题(中): 吸收紫外线辐射的高折射率眼镜
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申请号: US011166申请日: 1998-02-02
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公开(公告)号: US5932501A公开(公告)日: 1999-08-03
- 发明人: Yves A. H. Brocheton
- 申请人: Yves A. H. Brocheton
- 申请人地址: NY Corning
- 专利权人: Corning Incorporated
- 当前专利权人: Corning Incorporated
- 当前专利权人地址: NY Corning
- 优先权: FRX9512230 19951018
- 主分类号: C03C3/064
- IPC分类号: C03C3/064 ; C03C3/068 ; C03C3/072 ; C03C3/074 ; C03C3/095 ; C03C3/11 ; C03C3/115 ; C03C3/118 ; C03C4/08 ; C03C14/00
摘要:
The invention relates to glasses which absorb UV radiation and which have the following composition, in wt. %: SiO.sub.2 30-52; ZnO 0-8; B.sub.2 O.sub.3 12-22; PbO 0-2; ZrO.sub.2 5-14; Y.sub.2 O.sub.3 0-15; Al.sub.2 O.sub.3 0-12; La.sub.2 O.sub.3 5-25; Li.sub.2 O 1.5-3.5; TiO.sub.2 0-2; Na.sub.2 O 0-6; HfO.sub.2 0-2; K.sub.2 O 2-9; Nb.sub.2 O.sub.5 0-2; MgO 0-5; Ta.sub.2 O.sub.5 0-2; CaO 0-5; MoO.sub.3 0-2; SrO 0-9; WO.sub.3 0-2; BaO 0-14; SnO 0-4; Sb.sub.2 O.sub.3 0-4; SnO.sub.2 0-4; AS.sub.2 O.sub.3 0-4; CdO 0-1; CuO 0.15-1; F 0-2; Cl 0-3; Br 0-3; I 0-2 with the following conditions: Li.sub.2 O+Na.sub.2 O+K.sub.2 O (X.sub.2 O) 7-14; MgO+CaO+SrO+BaO (XO) 12-20; ZrO.sub.2 +Al.sub.2 O.sub.3