发明名称 |
METHOD FOR PRODUCING LIGHTTTRANSMITTING FIBERS |
摘要 |
PURPOSE:To provide a method for cheap and economical production of preforms satisfying characteristics required in light transmission such as low transmission loss or small transmission deflection by removing foams from porous glasses in which refractive indices are changed in stages in the direction of radius, followed by melt spinning. |
申请公布号 |
JPS5267645(A) |
申请公布日期 |
1977.06.04 |
申请号 |
JP19750144519 |
申请日期 |
1975.12.03 |
申请人 |
SUMITOMO ELECTRIC INDUSTRIES |
发明人 |
TANAKA GOUTAROU;FUJIWARA KUNIO;KUROSAKI SHIROU |
分类号 |
C03B37/014;C03B37/012;G02B6/00 |
主分类号 |
C03B37/014 |
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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