| 发明名称 |
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| 摘要 |
PURPOSE:To produce an optical fiber preform having low eccentricity, by starting the deposition of glass soot after correcting the whirling of a starting material for the production of an optical fiber preform in a manner to align the axis of the starting material to that of the shaft to rotate the starting material. CONSTITUTION:Prior to the deposition of glass soot on the outer surface of a quartz glass rod 9, the quartz glass rod 9 is rotated by the rotary chuck 7 and the dial gauges of the upper and lower correction jigs 12 are applied to the glass rod 9 to measure the whirling and its center. A part of the upper dammy 11 above the correction jig 12 is heated and softened with a hand burner 14 and the micrometer heads of two correction jigs 12 are pressed toward the dammy part 11 until the whirling measured by the dial gauge coincides with the center value determined at first. A combustion gas and a raw material gas are introduced through the burner and glass soot is deposited on the glass rod to obtain the objective optical fiber preform 17. |
| 申请公布号 |
JPH0324419(B2) |
申请公布日期 |
1991.04.03 |
| 申请号 |
JP19850208507 |
申请日期 |
1985.09.19 |
| 申请人 |
SUMITOMO ELECTRIC INDUSTRIES |
发明人 |
TSUCHA ICHIRO;YOKOTA HIROSHI;MIZUTANI FUTOSHI;SO MASAYA |
| 分类号 |
G02B6/00;C03B37/014;C03B37/018 |
主分类号 |
G02B6/00 |
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