发明名称 |
Optical glasses and their uses |
摘要 |
The optical glass has an index of refraction (nd) greater than or equal to 1.70, an Abbé number (nud) greater than or equal to 35 and a density (rho) less than or equal to 4.5 g/cm<3>. Optical elements made with this optical glass are especially desirable in optical data transfer applications, particularly in read-write devices with movable read-write heads. The glass compositions required to make optical glass with these properties are described.
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申请公布号 |
US2004180774(A1) |
申请公布日期 |
2004.09.16 |
申请号 |
US20040806754 |
申请日期 |
2004.03.23 |
申请人 |
WOLFF SILKE;WOELFEL UTE;SIEPE ULRICH |
发明人 |
WOLFF SILKE;WOELFEL UTE;SIEPE ULRICH |
分类号 |
G02B1/00;C03C3/068;C03C3/155;(IPC1-7):C03C3/089 |
主分类号 |
G02B1/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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