Method of measuring optical fiber preform
US11274917B2 · kind B2 · utility
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2References
4Claims
0Family size
Assignee
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Key dates
| Filing date | Mar 25, 2021 |
| Grant date | Mar 15, 2022 |
| Priority date | — |
| Expiry date | Mar 25, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/03611
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method of measuring a diameter of a core portion of an optical fiber preform including the core portion having a relatively high refractive index and a clad portion having a relatively low refractive index. The method includes applying parallel light to the optical fiber preform, and measuring the diameter of the core portion from an image captured by receiving the light having transmitted through the optical fiber preform.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.