Multiple-fiber optical connector, and method for assembling the same

Abstract

In a prior art multiple-fiber optical connector, it was difficult to easily and securely insert and mount a plurality of optical fibers led out from the multiple-fiber optical fiber ribbon. Further, in such a prior art multiple-fiber optical connector, it was not possible to prevent a transmission loss from being generated due to local deformation of optical fibers, which is produced in mounting optical fibers, and a connection loss from being generated due to hardening and contraction of an adhesive agent, which are in the final assembling process. In order to solve such problems, a structure of an optical connector was designed as shown below; That is, a tapered portion ( ) is provided in a fiber ribbon insertion hole ( ) in order to narrow the width thereof, and the tip end ( ) of a sheathed portion of a multiple-fiber optical fiber ribbon ( ) is engaged in and stopped in the intermediate portion ( ) of the tapered portion ( ), whereby the insertion position is determined. In addition, in order to guide the led out optical fiber ( ) continuously from the tapered portion ( ), a conical introducing portion ( ) having an adequate diameter is provided, and it becomes possible to collectively insert a plurality of optical fibers securely into appointed minute holes for inserting optical fibers. Furthermore, no insertion window for an adhesive agent is necessary.