发明授权
US4166745A Refractive index-corrected copper-cadmium halide photochromic glasses
失效
折射率校正铜镉卤化物光致变色眼镜
- 专利标题： Refractive index-corrected copper-cadmium halide photochromic glasses
- 专利标题（中）： 折射率校正铜镉卤化物光致变色眼镜
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申请号： US861129申请日： 1977-12-16
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公开(公告)号： US4166745A公开(公告)日： 1979-09-04
- 发明人: Roger J. Araujo , Paul A. Tick
- 申请人： Roger J. Araujo , Paul A. Tick
- 申请人地址： NY Corning
- 专利权人： Corning Glass Works
- 当前专利权人： Corning Glass Works
- 当前专利权人地址： NY Corning
- 主分类号： C03C4/06
- IPC分类号： C03C4/06 ; C03C21/00 ; C03C3/08 ; C03C3/26
摘要：
Alkali boroaluminosilicate glass compositions providing refractive index-corrected copper-cadmium halide photochromic glasses of optical quality, particularly useful for making ophthalmic lenses, are described. Ion-exchange-strengthenable glasses exhibiting good chemical durability and a satisfactory liquidus-viscosity relationship in combination with good photochromic properties and the required refractive index are also provided.
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