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US 2020/0003932 A1Published application
Plastic optical fiber, plastic optical fiber cable, wire harness and vehicle
AssigneeMitsubishi Chemical Corporation
InventorsHideki Kihara, Noboru Fujikura
Life of this patent
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Abstract
There is provided a plastic optical fiber including a core and at least one layer of a clad formed on an outer circumferential surface of the core, wherein a transmission band is 100 MHz or wider, as measured under conditions of a wavelength of 650 nm and a launch NA=0.65; and a transmission loss is 350 dB/km or less, as measured under conditions of a wavelength of 650 nm and a launch NA=0.1, after exposure to an environment of a temperature of 105° C. for 1000 hours.
Claims21
A plastic optical fiber comprising:
- one core;
- and at least one layer of a clad formed on an outer circumferential surface of the core, wherein
- a transmission band is 100 MHz or wider, as measured under conditions of a wavelength of 650 nm and a launch NA=0.65;
- and
- a transmission loss is 350 dB/km or less, as measured under conditions of a wavelength of 650 nm and a launch NA=0.1, after exposure to an environment of a temperature of 105° C. for 1000 hours.
2 more elements
A plastic optical fiber comprising:
- a core comprising a homopolymer of methyl methacrylate or a copolymer of methyl methacrylate and one or more vinyl-based monomers;
- and dads of a first clad and a second clad formed in this order concentrically on an outer circumferential surface of the core, wherein
- a material for the first clad comprises a copolymer comprising 0 to 70% by mass of a repeating unit derived from at least one fluoroalkyl (meth)acrylate represented by the following Formula (1) or the following Formula (2) (where Formula (1) excludes 2-(perfluorohexyl)ethyl methacrylate), and 7 to 55% by mass of a repeating unit derived from 2-(perfluorohexyl)ethyl methacrylate, based on the total mass of the materials, and a refractive index of the material for the first clad is 1.430 to 1.485:
- wherein R is a hydrogen atom or a methyl group, X is a hydrogen atom or a fluorine atom, m is 1 or 2, and n is an integer of 5 to 13;
- wherein R is a hydrogen atom or a methyl group, X is a hydrogen atom or a fluorine atom, m is 1 or 2, and n is an integer of 1 to 4;
- and
- a material for the second clad comprises a fluorine-containing olefin-based polymer which contains a tetrafluoroethylene unit and has a heat of crystal melting of 40 mJ/mg or smaller in differential scanning calorimetry (DSC).
4 more elements
Dependencies are inferred from the claim text.