| 发明名称 |
LOW EXPANSION GLASS MATERIAL HAVING LOW EXPANSIVITY GRADIENT |
| 摘要 |
A low expansion glass substrate includes titania and silica and has a thermal expansivity with an average gradient less than 1 ppb/° C./° C. in a temperature range of 19° C. to 25° C.
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| 申请公布号 |
US2009143213(A1) |
申请公布日期 |
2009.06.04 |
| 申请号 |
US20080277611 |
申请日期 |
2008.11.25 |
| 申请人 |
HRDINA KENNETH EDWARD;SABIA ROBERT |
发明人 |
HRDINA KENNETH EDWARD;SABIA ROBERT |
| 分类号 |
C03C3/04 |
主分类号 |
C03C3/04 |
| 代理机构 |
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代理人 |
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