发明名称 |
Method and apparatus for modifying the transverse cross section of a body |
摘要 |
The transverse cross section of a body is modified by the steps of: a) determining the extent to which the body has material in excess of a desired shape at a plurality of points, b) exposing the body to a local heat source having a temperature sufficiently high to remove material from the surface of the body, and c) moving the surface of the body in relation to the source at a speed which decreases in regions where the body has material in excess of the desired shape so as to remove more material from such regions than from other regions. In a preferred embodiment, the body is an optical fiber preform, the local heat source is the fireball of a plasma torch, and the body is moved relative to the torch by rotating the preform at a controllable angular velocity while the torch is translated along the length of the preform.
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申请公布号 |
US5221306(A) |
申请公布日期 |
1993.06.22 |
申请号 |
US19900607020 |
申请日期 |
1990.10.31 |
申请人 |
AT&T BELL LABORATORIES |
发明人 |
FLEMING, JR., JAMES W.;MOESLE, JR., ADOLPH H.;PARTUS, FRED P. |
分类号 |
C03B23/043;C03B23/057;C03B29/02;C03B37/012;C03B37/014;C03B37/018;G02B6/00 |
主分类号 |
C03B23/043 |
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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