发明授权
- 专利标题: Phototropic glass with a refractive index of at least 1.59
- 专利标题(中): 折射率至少为1.59的光吸收玻璃
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申请号: US559018申请日: 1983-12-08
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公开(公告)号: US4486541A公开(公告)日: 1984-12-04
- 发明人: George Gliemeroth , Uwe Eichhorn
- 申请人: George Gliemeroth , Uwe Eichhorn
- 申请人地址: DEX Mainz
- 专利权人: Schott Glaswerke
- 当前专利权人: Schott Glaswerke
- 当前专利权人地址: DEX Mainz
- 优先权: DEX3117000 19810429
- 主分类号: C03C3/064
- IPC分类号: C03C3/064 ; C03C3/066 ; C03C3/072 ; C03C3/097 ; C03C3/108 ; C03C3/11 ; C03C3/19 ; C03C4/06 ; G02C7/10 ; C03C3/26 ; C03C3/08 ; C03C3/10
摘要:
A phototropic glass with an optical position n.sub.d .ltoreq.1.59 and v.sub.d .gtoreq.40 and with a density of .ltoreq.3.2 g/cm.sup.3 is described for the first time. Its composition lies within the system ofSiO.sub.2 --R.sub.2 O.sub.3 --R.sub.2 O--RO--RO.sub.x --R.sub.2 O.sub.5,wherein R.sub.2 O.sub.3 is Al.sub.2 O.sub.3, B.sub.2 O.sub.3 and rare earth oxides; R.sub.2 O is alkali metal oxides; RO is alkaline earth metal oxides, ZnO, SnO, or PbO; RO.sub.x is GeO.sub.2, ZrO.sub.2, TiO.sub.2, or WO.sub.3 ; and R.sub.2 O.sub.5 is Nb.sub.2 O.sub.5, Ta.sub.2 O.sub.5, or P.sub.2 O.sub.5.
公开/授权文献
- US5134631A Digital gain controller 公开/授权日:1992-07-28
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