Method of manufacturing optical fiber and optical-fiber-manufacturing apparatus
US12399315B2 · kind B2 · utility
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23References
4Claims
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Key dates
| Filing date | Jun 30, 2022 |
| Grant date | Aug 26, 2025 |
| Priority date | — |
| Expiry date | Sep 7, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/02395
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method of manufacturing an optical fiber includes applying a curable resin composition containing a photopolymerization initiator so that an outer circumference of a glass fiber including a core and a cladding is coated, and forming a coating layer by radiating an ultraviolet ray to the curable resin composition and curing the curable resin composition. Forming the coating layer includes providing two or more non-radiation periods and intermittently radiating the ultraviolet ray three or more times so that a total time of the non-radiation periods is 0.010 seconds or more.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.