Provided is an optical fiber adapter. The optical fiber adapter includes a first adapter body, a shielding gate elastically hinged to a lower end portion of the first adapter body, and a second adapter body whose a lower end portion is inserted into a cavity of the first adapter body. An end surface of the lower end portion of the second adapter body extends downward to form extension posts and an engagement arm, the extension posts are pressed against two ends of a hinge shaft of the shielding gate, and the engagement arm is exposed outside the shielding gate and is engaged with an optical fiber connector joint inserted into a lower end portion of the first adapter body. This structural design can facilitate the installation and fixation of the shielding gate, and thus a better light-shielding and dust-proof effect can be achieved.

Example fiber optic connector systems have rugged, robust designs that are environmentally sealed and that are relatively easy to install and uninstall in the field. Some connector systems can be configured in the field to be compatible with different styles of fiber optic adapters. Some connectors include a first seal (90) on a release sleeve; and a second seal (88) between the release sleeve and a connector body. Other connectors include a seal (139) and a flexible latch (136) on a connector. Other connectors include a protective structure (228, 328, 428) that mounts over the fiber optic connector. Other connectors include a protective outer shell (528, 860) and a sealing and attachment insert (570, 570A, 876). Other connectors include a protective outer shell (728) and a fastener (780).

The present disclosure provides an optical fiber connector, comprising an integrated ferrule assembly and an integrated outer housing assembly, the ferrule assembly being adapted to be fitted into the housing assembly. The ferrule assembly at least comprises an inner housing, a spring, a multi-hole ferrule, a multi-fiber optical cable, a sleeve and a thermal shrinkable tube. The housing assembly at least comprises an outer housing, an outer tail tube and an outer protection cap. In the present disclosure, a plurality of components such as the inner housing, the spring, the multi-hole ferrule, multi-fiber optical cable, the sleeve, the thermal shrinkable tube and the like can be preassembled into an integrated ferrule assembly, and a plurality of components such as the outer housing, the outer tail tube, the outer protection cap and the like can be preassembled into an integrated outer housing assembly; then, a worker only needs to insert the integrated ferrule assembly into the integrated outer housing assembly on site, thereby completing assembling operation of the whole optical fiber connector conveniently and quickly.

A cable assembly including a tracer conduit and one or more data transmission conduits. Physically separable proximal and/or distal portions of the data transmission conduit(s) and the tracer conduit are held together by a sleeve. In some examples the sleeve is axially and radially expandable and collapsible multiple times. In some examples, the tracer conduit transmits a visible laser light signal that can be observed after it radially diffuses through the sleeve.

A light screen of fiber optic connectors. The light screen of fiber optic connectors comprises a metal framework, a first metal spring tab and a second metal spring tab integrally formed inside the metal framework and distributed oppositely, and the end of the first metal spring tab and the end of the second metal spring tab are staggered, farming a spring tab opening-closing structure for shielding light. This new type of light screen is made of sheet metal, which has a certain strength, convenient for automatic assembly in late stage, and the first metal spring tab and the second metal spring tab of the light screen have excellent recovery capability, convenient to use, and the lifetime is longer. In addition, this new model has simple structure, very simple production technique and convenient assembly, so that this new model has very strong marketability.

A modular optical connector includes a plurality of coupled optical ferrule support modules. Each optical ferrule support module comprises module connecting features configured to couple each ferrule support module with one or more neighboring ferrule support modules of the plurality of ferrule support modules. One or more optical ferrules are disposed and configured to rotate within the ferrule support module. Each optical ferrule includes a first attachment area configured to attach to one or more optical waveguides. One or more passageways are disposed within the ferrule support module. Each passageway is configured to receive the one or more optical waveguides. The passageway comprises a second attachment area configured to attach to the optical waveguides that are attached to the optical ferrule at the first attachment area. The passageway is dimensioned to constrain the optical waveguides to bend within the housing between the first attachment area and the second attachment area.

Fiber optic connectors, connector housings, connectorized cable assemblies, and methods for the connectorization of cable assemblies are provided with particular cable adapter features, adapter extensions, multi-diametrical sealing flexures, subcutaneous sealing elements, and combinations thereof, for improved connector and cable performance, integrity, and durability.

An optical connection device includes an optical fiber, a first connection member which includes an inlet to which the optical fiber is connected and an outlet, a second connection member which includes an aperture connected to the outlet of the first connection member and to which light from the optical fiber is transmitted through the first connection member, and a first light transmission protection part which protects a tip of the optical fiber in the first connection member.

A dust cap includes a cap body and a pair of opposing latches. The cap body is adapted to cover a connectorized end of a fiber optic connector and cable assembly when the connectorized end is inserted through an opening of an interior of the cap body. The cap body further includes an opposing pair of resilient walls. The pair of opposing latches each include latching features that extend outside of the interior of the cap body. The pair of opposing latches each further include a mounting portion mounted to a respective one of the opposing pair of resilient walls. The dust cap may further include a pulling interface. The pulling interface may be adapted to attach to a pulling member and may be positioned at a tapered nose of the cap body. The dust cap may thereby be a cable pulling cap and may pull a fiber optic connector and cable assembly through conduits and other narrow passages. A pair of opposing pulling halves may enclose the cable pulling cap or the dust cap without a pulling interface and at least a portion of the connectorized end of the fiber optic connector and cable assembly.

[Problem] An object of the present invention is to provide a dust cap for a ferrule including a optical multi-fiber ribbon and which are capable of improving a dust-proofing effect, and an optical connector.

[Solution] A dust cap (100) for a ferrule according to the present invention is a dust cap for a ferrule for protecting a tip portion of the ferrule, the dust cap (100) comprising a cap section (200) holding the tip portion (910) of the ferrule (900) and forming a closed space (AR), and a guide rail section (300) guiding the ferrule (900) to the cap section (200), wherein the guide rail section (300) has a shape that guides the tip portion (910) of the ferrule (900) from a direction different from a direction in which the ferrule (900) is guided to the cap section (200).