摘要:
A contact retention arrangement for a fiber optic connector is disclosed in which the retention element for the ferrule connected to the fiber optic cable is formed or shaped with an integral spring which maintains mating ferrules in positive abutment with each other. The contact retention element may either be a contact retention clip mounted in the wall of the contact passage, or a retention clip carried by the ferrule. In the latter arrangement, the clip is designed so that it may be released from either the front or rear of the connector body. The contact retention arrangement may also be used in an electrical connector.
摘要:
A combined fiber optic and electrical connector member is disclosed in which the metallic conductors of a cable coupled to the connector member extend through a hollow sleeve while the optical fibers of the cable are spirally wound around the sleeve in a flex chamber thereby reducing bend radiation losses through the fibers when the connector member is engaged with a mating connector member.
摘要:
A fiber optic contact comprising a ferrule having an alignment sleeve mounted on its forward end so that the mating end face of the ferrule is positioned between the front and rear of the alignment sleeve. A releasable positive interlock is provided between the sleeve and the ferrule so that the sleeve may be removed for cleaning the mating end face of the ferrule, yet the sleeve will not be accidentally removed from the ferrule during use of the contact in a connector. Vent holes are provided in the intermediate region of the alignment sleeve so that dust or other particles in the sleeve will be forced out of the sleeve through the vent holes when the ferrule of a second contact is slid into the alignment sleeve to mate with the ferrule upon which the alignment sleeve is mounted.
摘要:
A fiber optic contact retention assembly in which a fiber optic contact has an annular groove formed in its body providing front and rear shoulders. An O-ring is positioned in the groove adjacent to the rear shoulder. The contact is radially slidably mounted into a slot in a supporting yoke. One shoulder of the contact engages the front of the yoke and the O-ring is compressed between the rear of the yoke and the rear shoulder of the contact so that the contact is firmly retained in a vertical position relative to the front face of the yoke for facilitating insertion of the contact into a guide member.
摘要:
A connector for coupling a pair of single optical fibers is disclosed. Each contact of the connector utilizes three spheres of equal diameter defining a tricuspid interstitial space therebetween into which the end of a fiber is mounted. When a pair of contacts is mated in axial abutting relationship, the spheres in the mating abutting contacts nest with respect to each other, thereby precisely laterally aligning the optical fibers which are mounted in the interstitial spaces of the sets of spheres in the two contacts. A spring sleeve is mounted on a cap threaded onto the forward end of each contact body. The spring sleeve embodies three resilient fingers which urge the spheres inwardly and rearwardly under a controlled force determined by cooperating abutting shoulders on the threaded cap and contact body, thus avoiding the fracturing of an optical fiber mounted in the interstitial space between the spheres.
摘要:
An optic fiber connection apparatus and method are provided which enables positioning of a lens or bead at the end of an optic fiber at a selected distance from the end of the contact or terminus while maintaining a closely controlled lateral position of the bead. The contact has a hole extending along its axis, with a cylindrical front portion of a diameter to closely surround the lens at the end of the optic fiber. In addition or alternatively, the hole that receives the fiber may have a diameter to closely surround the fiber, and a shoulder intermediate the contact front and rear end. The optic fiber can be slid within the contact to extend its end beyond the contact so a lens can be formed on the tip of the fiber. Thereafter the fiber is slid backward into the contact. The lens is slid backward or foward against a positioning tool to a final lens position forward of the shoulder.
摘要:
An optical fiber connector assembly using eccentric ferrule centering means for adjusting the concentricity of the optical fiber interface end with respect to the connector body perimeter. The eccentric ferrule or ferrules are in the form of elongated sleeves with the innermost sleeve extending from the connector body end the greatest amount. An external crimp sleeve of a relatively soft malleable metal has a generally conical shape with internal step-tapered diameter to fit over the eccentric ferrule exposed ends. Once the concentricity alignment of the optical core has been effected by relative rotation of the eccentric ferrule members (sleeves), crimping of the soft metal sleeve to each eccentric sleeve exposed extremity fixes the relative rotational position of these ferrules preserving the concentric alignment of the optical fiber in the connector body.
摘要:
A clamp is disclosed for a fiber optic cable having metal strength members. The strength members are fed through axial slots in the forward end of an inner sleeve of the clamp and are wound helically around the inner sleeve. Thereafter an outer sleeve is crimped around the helically wound portions of the strength members and the inner sleeve to tightly secure the strength members to the sleeve.
摘要:
An optic fiber connection system is provided which enables the forming of a lens or bead at the end of an optic fiber by an electric arc established between a pair of electrodes, which avoids degradation of the electrodes with use. The contact has a forward portion with a hole along its axis for receiving the optic fiber, and a cross aperture extending perpendicular to the hole to receive the end of the optic fiber. The forward portion of the contact is formed of a ceramic or other high melting temperature dielectric, to allow the electrodes to be widely spaced to avoid their degradation, without shorting out the electric arc.
摘要:
A fixture is provided which enables the rapid mounting of an optical fiber contact with its forward end at a predetermined position and orientation with respect to arc-creating electrodes. The fixture includes a frame with a vertical slot having a width greater than the diameter of the cylindrical contact, and a plurality of spring-biased plungers which enable the contact to be pushed sidewardly into the slot and which thereafter press the contact against the slot bottom. The contact can slide vertically along the slot and plungers until a stop on the contact abuts a corresponding stop on the fixture and an orienting pin on the fixture passes into a corresponding hole in the contact stop.