A cleaning device (10, 110, 210) may be a card-like member such as a flap (16, 116), integrally formed with a dispenser container (12), or a slotted member (36) mounted on a stand-alone cleaning device (110). A cleaning wipe fabric (22, 122) has a modulus of stiffness which is high enough to bridge a plurality of cleaning slots (26a-26d, 126a-126d) and hold the fabric out of contact with the slot floor surfaces (26a′), and low enough to be deflected by a fiber optic end being cleaned to sag within the cleaning slot to better enclose and clean the tip of the fiber optic end. Used cleaning fabric (22, 122) can easily be advanced or removed as needed to avoid using the same area of fabric for cleaning more than once.

Provided is an optical fiber ferrule polishing jig capable of fixing an optical fiber ferrule and releasing the optical fiber ferrule. An optical fiber ferrule polishing jig 10A has; a base 12a having insertion holes 20 into which optical fiber ferrules 51 can be detachably inserted; pivoting rods 13 which are adjacent to the insertion holes 20 of the base 12a and rotatable around lower end portions 36; fixing pieces 14a installed in installation recesses 19a formed in the base 12a to fix the optical fiber ferrules 51 with respect to the insertion holes 20 by being moved as the rods are pivoted; and a plurality of coil springs 15a installed in the installation recesses 19a to bias the fixing pieces 14a so as to release fixing of the optical fiber ferrules 51 with respect to the insertion holes 20.

The nozzle includes a nozzle body having a front end with a recess defining a recessed wall. The recess is elongate in a first direction. The recess receives a front-end section of a ferrule of a multi-fiber connector to define gap, wherein the front-end section has an elongate end face. The nozzle has first and second channels that are elongate in the first direction and have respective first and second front-end openings at the recessed wall. The first and second front-end openings are spaced apart in a second direction perpendicular to the first direction. A cleaning fluid flows from the first channel into the gap and then out the second channel, including over the ferrule end faces and end faces of optical fibers supported by the ferrule. A flow-disrupting feature on the recessed wall generates turbulent flow to enhance cleaning.

An optical fiber sub-assembly and an optical fiber connector, where the optical fiber sub-assembly includes a connector component, where a first end of the connector component is used to connect an optical cable, and where a ferrule is disposed at a second end of the connector component. Additionally, a protection tube is disposed around the ferrule, where an end surface of the ferrule protrudes from an end surface of the protection tube or an end surface of the ferrule is level with an end surface of the protection tube. Further, the protection tube has a notch, and a beveled edge is formed at an outer end of the notch.

A dustcap comprises a body having a cylindrical portion configured to receive a ferrule of an optical fiber connector, and an end portion opposite the cylindrical portion. The end portion includes a receptacle. The dustcap has a built-in cleaner disposed within the receptacle. The dustcap further comprises a removable cover configured to couple to the end portion of the dustcap. In another embodiment, the end portion includes a flat surface, the cleaner is disposed on the flat surface of the end portion, and the cover is configured to receive the end portion of the dustcap. In another embodiment, the cover has a receptacle and the cleaner is disposed within the receptacle, whereas the body comprises an end portion configured to receive at least a portion of the cover with the built-in cleaner. Embodiments encompass cleaner assemblies and adapter dustcaps having built-in cleaners.

An apparatus for treating optical fibers can be used to carry out necessary cleaning work on the end tips of the glass fibers of fiber-optic cables. The apparatus has modules which are provided with non-abrasive surface layers able to pick up contaminants and are spring-mounted in relation to one another such that they can be pivoted about a hinge joint, and, in the case of at least one of the modules, elastic material layers are introduced between the surface layer and the main body of the assembly. The assemblies are preferably designed in the form of grip plates, between which non-abrasive, cloth-like layers are applied, as a cleaning surface, to each of the facing surfaces and, in the case of both gripping plates, elastic insulating materials are arranged between the cloth-like surface layer and the gripping plate.

Provided is a cleaning device that can follow a complicated shape and can accurately remove stains by using a resin having high toughness.

A cleaning device including a contaminant collector, in which the cleaning device is characterized in that the contaminant collector includes a polyurethane resin, the contaminant collector has an Asker C hardness of 45 to 90, and the contaminant collector has a tensile strength of 2.0 MPa or more and 30 MPa or less.

An attachment cleaning tool includes: a cleaning tool; and an attachment detachably attached to the cleaning tool. The cleaning tool includes: cleaning bodies that clean connection end surfaces of ferrules of an optical connector; head members each that press the cleaning bodies against the connection end surfaces; nozzle members that respectively accommodate the head members; a feeding mechanism that supplies and withdraws the cleaning bodies with respect to the head members; and an accommodating body which accommodates the feeding mechanism. Each of the connection members of the attachment includes: an attachment portion attached to a tip portion of each of the nozzle members; and a tubular portion that protrudes from the attachment portion in a longitudinal direction of the nozzle members and into which one of the ferrules is inserted. The connection members move following a relative movement of the nozzle members in the lateral direction.

An optical connector cleaning tool includes a fitting portion (44) fitted in the first or second hole (36, 37) of a connection component (32) into which a compact dual core optical connector is fitted on one end side and a cleaning medium (45) projecting from the fitting portion (44). The fitting portion (44) is formed to have a shape by which the fitting portion (44) is fitted in the first or second hole (36, 37) in each of the first and second postures as postures shifted through 180° with respect to as the center the middle (P2) of a virtual straight line connecting the centers of the two ferrules when viewed from an axial direction of the compact dual core optical connector. The fitting portion (44) contacts one ferrule in a state in which the fitting portion (44) is set in the first posture. The fitting portion (44) contacts the other ferrule in a state in which the fitting portion (44) is set in the second posture. There can be provided an optical connector cleaning tool by which the connection end faces of the compact dual core optical connector having two ferrules in one housing can be cleaned.

An inspection tool for allowing visual inspection of an end face of a fiber optic ferrule. The inspection tool includes a passage for allowing a camera to view the end face. The inspection tool also includes light directing structure for first directing ferrule illumination light axially along the inspection tool, and then reflecting the axial light across the end face of the fiber optic ferrule.