| 发明名称 |
METHOD FOR PRODUCTION OF GLASS PREFORM FOR OPTICAL FIBERS |
| 摘要 |
A method for producing a glass preform for optical fibers in which fluorine is efficiently incorporated into the preform without incorporation of Fe or Cu. A fine glass particle mass, made primarily of quartz, is converted into transparent glass by heating it in a gas atmosphere containing at least a fluorine-based compound gas and a chlorine-based compound gas. The preferred heating range is 1,100 DEG to 1,400 DEG C. |
| 申请公布号 |
DE3471090(D1) |
申请公布日期 |
1988.06.16 |
| 申请号 |
DE19843471090 |
申请日期 |
1984.10.18 |
| 申请人 |
SUMITOMO ELECTRIC INDUSTRIES LIMITED;NIPPON TELEGRAPH AND TELEPHONE CORPORATION |
发明人 |
KYOTO, MICHIHISA C/O YOKOHAMA WORKS;YOSHIOKA, NAOKI C/O YOKOHAMA WORKS;TANAKA, GOTARO C/O YOKOHAMA WORKS;KANAMORI, HIROO C/O YOKOHAMA WORKS;WATANABE, MINORU C/O YOKOHAMA WORKS;NAKAHARA, MOTOHIRO |
| 分类号 |
C03B37/014;(IPC1-7):C03B37/018;C03B37/016;G02B6/10 |
主分类号 |
C03B37/014 |
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