Patent ID: 7431513

Claim:
An adjustable focus connector comprising: a ferrule holder for retaining at a distal end thereof a ferrule mounting an optical fiber therein; a lead screw member threadedly connected to said ferrule holder at a proximal end of said ferrule holder; a thrust collar surrounding said ferrule holder, said thrust collar and said ferrule holder defining a generally annular cavity therebetween; a traveler member threadedly receiving therein said lead screw member and abutting an adjacent end face of a proximal end wall of said thrust collar; a key frame secured to said thrust collar and extending away therefrom to surround the distal end of said ferrule holder; a compression spring retained within said cavity; a coupling nut surrounding said key frame and retained thereon for connecting said connector to an FC receptacle devoid of any stop member therein; and a spring guard surrounding portions of said traveler member and said thrust collar where said traveler member abuts said thrust collar, said spring guard being threadedly secured to said thrust collar; wherein said ferrule holder includes a radially outwardly directed flange intermediate the length thereof against which a distal end of said compression spring abuts.