发明授权
- 专利标题: Photochromic glass and lens
- 专利标题(中): 光致变色玻璃和镜头
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申请号: US391744申请日: 1999-09-08
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公开(公告)号: US6165922A公开(公告)日: 2000-12-26
- 发明人: Thomas G. Havens , David J. Kerko , Brent M. Wedding
- 申请人: Thomas G. Havens , David J. Kerko , Brent M. Wedding
- 申请人地址: FRX Avon Cedex
- 专利权人: Corning S.A.
- 当前专利权人: Corning S.A.
- 当前专利权人地址: FRX Avon Cedex
- 主分类号: C03C3/064
- IPC分类号: C03C3/064 ; C03C3/11 ; C03C4/06
摘要:
A fixed tint, photochromic glasses and sunglass lenses produced therefrom. The glasses have R.sub.2 O--Al.sub.2 O.sub.3 --B.sub.2 O.sub.3 --SiO.sub.2 base compositions, contain silver chloride and bromide contents as photochromic constituents and 0.22-0.38% NiO and 0.034-0.060% CoO, both by weight percent, as glass colorants, the NiO:CoO ratio being in the range of 5.5-7.2:1.
公开/授权文献
- US5659478A Rapid product realization process 公开/授权日:1997-08-19
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