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AssigneeNippon Telegraph and Telephone Corporation
InventorsHirotsugu Sato, Yoshito Shuto, Shunichi Tohno
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A plastic split optical alignment sleeve comprising a cylindrical plastic sleeve with a slit in a side surface thereof to be arranged in an adaptor which splices optical fiber chords having inserted therethrough optical fibers and having a ferrule on each end thereof, the sleeve being capable of engaging therein the ferrules on both sides thereof to splice the optical fibers, comprises a resin composition which when injection molded exhibits an anisotropy of 1.5 or less, the anisotropy being expressed in terms of ratio of a physical property, preferably flexural modulus, in a first direction in which a resin in the resin composition flew upon injection molding and that in a second direction which is at right angles to the first direction. The resin composition contains at least one resin selected from polyetherimides, polyethersulfones, and epoxy resins and at least one inorganic substance selected from whiskers and silica powder.
A plastic split optical alignment sleeve comprising a cylindrical plastic sleeve with a slit in a side surface thereof to be arranged in an adapter which splices optical fiber chords having inserted therethrough optical fibers and having a ferrule on each end thereof, said sleeve being capable of engaging therein said ferrules on both sides thereof to splice said optical fibers, wherein said split alignment sleeve comprises a resin composition which when injection molded exhibits an anisotropy of 1.5 or less, the anisotropy being expressed in terms of a ratio of a physical property in a first direction in which a resin in said resin composition flew upon injection molding and that in a second direction which is at a right angle to the first direction, further wherein said resin composition comprises at least one resin selected from the group consisting of polyetherimides, polyethersulfones, and epoxy resins and at least one inorganic substance selected from the group consisting of whiskers and silica powder.
A method of fabricating a plastic split optical alignment sleeve comprising a cylindrical plastic sleeve with a slit in a side surface thereof to be arranged in an adaptor which splices optical fiber chords each having inserted therethrough an optical fiber and each having a ferrule on an end thereof, said sleeve being capable of engaging therein said ferrules on both sides thereof to splice said optical fibers, said method comprising the steps of:
Dependencies are inferred from the claim text.