| 发明名称 |
INSPECTION DEVICE, INSPECTION METHOD, AND METHOD OF MANUFACTURING OPTICAL FIBER |
| 摘要 |
<P>PROBLEM TO BE SOLVED: To accurately confirm whether an open hole is formed at a predetermined position without destroying a preform. <P>SOLUTION: A detector 102 sequentially detects intensity distributions of transmitted light through the center part of a preform 10. A determination unit 112 determines at least one of the position and size of an open hole 11 on the basis of the time sequence of feature quantities in the intensity distributions. <P>COPYRIGHT: (C)2013,JPO&INPIT |
| 申请公布号 |
JP2013029315(A) |
申请公布日期 |
2013.02.07 |
| 申请号 |
JP20110163473 |
申请日期 |
2011.07.26 |
| 申请人 |
FUJIKURA LTD |
发明人 |
ISHIDA ITARU;HAMAGUCHI HIROKI |
| 分类号 |
G01M11/00 |
主分类号 |
G01M11/00 |
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