发明名称 |
METHOD AND APPARATUS FOR DRAWING OPTICAL FIBRES BY MEANS OF A DOUBLE CRUCIBLE |
摘要 |
Method and apparatus for drawing optical glass fibres by means of a double crucible. The double crucible for producing a graded index optical fibre having a core and a cladding comprises inner and outer body portions (2) and (3) and a heated exit flow tube (4) which is elongate to allow thermal diffusion between the core and cladding to be prolonged. |
申请公布号 |
DE2960800(D1) |
申请公布日期 |
1981.12.03 |
申请号 |
DE19792960800 |
申请日期 |
1979.03.07 |
申请人 |
THE POST OFFICE |
发明人 |
BEALES, KEITH JOHN;DAY, CLIVE RICHARD;NEWNS, GEORGE REGINALD |
分类号 |
C03B37/00;C03B37/023;G02B6/00;(IPC1-7):C03B37/02 |
主分类号 |
C03B37/00 |
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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