| 发明名称 |
Optical glass |
| 摘要 |
An optical glass consisting essentially of a B2O3-La2O3-Gd2O3-WO3-ZrO2 and/or Ta2O5 system has high refractive and low dispersive characteristics with optical constants of 1.85-1.96 for Nd and 43-28 for nu d, is free of poisonous ThO2, CdO and BeO ingredients, and suitable for mass production.
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| 申请公布号 |
US4120732(A) |
申请公布日期 |
1978.10.17 |
| 申请号 |
US19770860024 |
申请日期 |
1977.12.12 |
| 申请人 |
KABUSHIKI KAISHA OHARA KOGAKU GARASU SEIZOSHO |
发明人 |
KOMORITA, FUJIO;NAKAHARA, MUNEO |
| 分类号 |
C03C3/068;C03C3/155;C03C3/23;(IPC1-7):C03C3/12;C03C3/14 |
主分类号 |
C03C3/068 |
| 代理机构 |
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代理人 |
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| 主权项 |
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