| 发明名称 |
HIKARIDOHAROYOSUSUPURIFUOOMUOYOBISONOKEISEIHOHO |
| 摘要 |
A process for making a tubular optical waveguide preform for a high-numerical-aperture optical waveguide which comprises an inner compression layer for enhanced preform strength, and a soot preform produced in accordance with the process, are described. |
| 申请公布号 |
JPH0244777(B2) |
申请公布日期 |
1990.10.05 |
| 申请号 |
JP19810066810 |
申请日期 |
1981.04.30 |
| 申请人 |
CORNING GLASS WORKS |
发明人 |
MAIKERU JII BURANKENSHITSUPU |
| 分类号 |
C03B37/018;C03C13/04;G02B6/00 |
主分类号 |
C03B37/018 |
| 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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