Abstract: An optical fiber connector includes a fixing module, an optical fiber ferrule positioned at an end of the fixing module, and an optical fiber gripped in the fixing module. The optical fiber ferrule axially defines a through hole. An end surface of the optical fiber includes an arc surface. The optical fiber is received in the through hole of the optical ferrule.

Abstract: An optical fiber connector includes a holder, a housing fixed on the holder, a clamping member for clamping an optical cable having an optical fiber, a protecting member positioned in the housing. The protecting member defines a bore for the optical fiber of the optical cable to moveably pass through. The optical fiber connector also includes a first elastic member, in which one end of the first elastic member resists the protecting member, and the other end of the first elastic member resists the clamping member, so as to extend the optical fiber out of the protecting member and the protecting member to partly protrude out of the housing.

Abstract: An optical fiber connector includes a holder, a housing fixed on the holder, a clamping member for clamping an optical cable having an optical fiber, a protecting member positioned in the housing. The protecting member defines a bore for the optical fiber of the optical cable to moveably pass through. The optical fiber connector also includes a first elastic member, in which one end of the first elastic member resists the protecting member, and the other end of the first elastic member resists the clamping member, so as to extend the optical fiber out of the protecting member and the protecting member to partly protrude out of the housing.

Abstract: A threadedly engageable coupling device is used with a complementary coupling device for tightening first and second article pieces, and includes an abutment head, a cylindrical shank extending from the head, and a plurality of blade portions disposed on a proximate segment of the shank proximate to the head. Each of blade portions has a cutting edge which gradually deviates from the proximate segment when extending towards the head such that when the shank is inserted into a bore in the first article piece to permit the head to abut against the piece by a friction force generated through screw movement of a threaded surface of a distal segment of the shank and a threaded surface of the complementary coupling device, the cutting edge incrementally incises the first article piece so as to guard against rotation of the shank relative to the piece to thereby tighten the first and second article pieces together.