Optical connector

Details Optical connector Optical connector

G - Physics

02

B

G02B 6/38 (2006.01)

Patent

CA 2193145

A ferrule 5 is composed of a capillary 51 and a flange 52 in- tegrated with each other. The capillary 51 guides therethrough an optical fiber 3 protruding from a buffer tube 2 in an axial di- rection. The capillary 59 has a tip end 51a polished in a tilted convex face. The flange 52 is fixed to a rear end 51b of the capillary 51, and is formed with a key projection 52k engaged into a key recess 42 of an adaptor 4 to achieve the positioning of the ferrule 5 in a circumferential direction. A plug frame 6 has a front sleeve 6a for receiving therein the flange 52 of the ferrule 5, and a rear sleeve 6b extending axially from the front sleeve 6a for guiding the buffer tube 2. A clamp ring 8 is engaged around an outer periphery of the rear sleeve 6b of the plug frame 6, and is also engaged with a tip end of a cord tube 1 to fix the rear sleeve 6b and the cord tube 1 to each other. A coupling nut 9 is mounted around an outer periphery of the plug frame 6, and is screwed with the adaptor 4 so as to couple the plug frame 6 to the adaptor 4.

a présente invention concerne une ferrule 5 composée d'un tube capillaire 51 et d'une collerette 52 intégrés. Le tube capillaire 51 sert de guide à une fibre optique 3 sortant axialement d'un tube tampon 2. Le tube capillaire 59 a une extrémité aval 51a présentant une face convexe polie inclinée. La collerette 52 se fixe à l'extrémité amont 51b du tube capillaire 51 et comporte une clavette 52k qui s'insère dans une rainure 42 d'un adaptateur 4 pour le positionnement radial approprié de la ferrule 5. Un anneau 6 comporte un manchon avant 6a qui reçoit la collerette 52 de la ferrule 52 et un manchon arrière 6b dans le prolongement axial du manchon avant 6a qui sert à guider le tube tampon 2. Une bague de serrage 8 se glisse sur le manchon arrière 6b de l'anneau 6 et reçoit en même temps le bout amont d'un tube de cordon 1 pour fixer celui-ci au manchon 6b. Un écrou d'accouplement glissé sur l'anneau 6 se visse à l'adaptateur 4 pour rendre ceux-ci solidaires.

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