发明授权
US3785722A USE OF SiO{11 -NB{11 O{11 {11 AND/OR Ta{11 O{11 {11 GLASSES AS ULTRAVIOLET FILTERS
失效
使用SiO {11 -NB {11 O {11/11和/或Ta {11 O {11玻璃作为超紫外线过滤器
- 专利标题： USE OF SiO{11 -NB{11 O{11 {11 AND/OR Ta{11 O{11 {11 GLASSES AS ULTRAVIOLET FILTERS
- 专利标题（中）： 使用SiO {11 -NB {11 O {11/11和/或Ta {11 O {11玻璃作为超紫外线过滤器
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申请号： US3785722D申请日： 1972-06-20
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公开(公告)号： US3785722A公开(公告)日： 1974-01-15
- 发明人: SCHULTZ P
- 申请人： CORNING GLASS WORKS
- 专利权人： Corning Glass Works
- 当前专利权人： Corning Glass Works
- 优先权： US26442672 1972-06-20
- 主分类号： C03C3/06
- IPC分类号： C03C3/06 ; C03C3/076 ; C03C3/083 ; C03C4/08 ; G02B5/22 ; G02B13/14 ; C03C3/24
摘要：
Glass filters and their use in controlling transmission of radiation is disclosed. The filters have a sharp transmission cut off within the ultraviolet region of the spectrum and also withstand high temperatures and severe heat shock. They are produced from a fused silica glass having a composition consisting essentially of silica and 1-25 percent R2O5 wherein the R2O5 consists of 0-5 percent Nb2O5 and/or 0-25 percent Ta2O5. The transmission cut off may be shifted across the ultraviolet transmission range by varying the amount of additive.
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