Patent ID: 6517254
Filing Date: 2003-02-11
Classification: G02B

Abstract:
A collar member for mounting at the rear end of a ferrule tubular body that has an optical fiber insertion hole into which a coated optical fiber is inserted, the collar member comprising:a pipe member formed of metal and having a tubular portion with an inner diameter sufficient to slidably accommodate therein the ferrule tubular body; a collar portion integrally molded of plastic on the outer periphery of a front portion of the pipe member, the collar portion having on an outer peripheral surface thereof a key groove for positioning with respect to an optical connector housing; and a coated fiber holding portion integrally molded of plastic in a rear portion of the pipe member to have an inner diameter smaller than the inner diameter of the tubular portion of the pipe member, the coated fiber holding portion having a through-hole extending therethrough for receiving a coated optical fiber.