The Furukawa Electric Co., Ltd.

Nippon Telegraph and Telephone Corporation

Sumitomo Electric Industries, Limited

Fujikura Limited

Nippon Telephone and Telegraph Corporation

Nippon Telegraph & Telephone Co.

Naoko Shimoji

Shinji Nagasawa

Masato Shiino

Jun Yamakawa

Masayuki Iwase

Masaaki Takaya

Ken Kanai

Kazuhiro Takizawa

Kenichiro Ohtsuka

Daizo Nishioka

Hajime Mori

Shinichi Matsumoto

Koji Seo

Masahiro Hamada

Kuniaki Terakawa

Renichi Yuguchi

Masanobu Toyonaga

Hiroyuki Tanase

Tatsuya Nakajima

Masashi Awamori

Daigo Saitoh

A cantilever type latch having the fixed end on the side of exposing the terminal end surface of the optical fiber is provided on the side of the plug housing. Near the center of the upper surface of the latch, an engaging projection which is to be engaged in the engaging hole formed in the adapter or the receptacle is formed. The engaging projection has the slope which decreases the height toward the fixed end side of the latch, in which the gradient of the slope is nearly equal to or greater than the rotation angle required for the elastic deformation of the latch with the fixed end functioned as the fulcrum. Thereby easy disconnecting of the latch is implemented.

Optical connector

An optical connector for making connection with a connecting partner side and releasing this connection is provided. The optical connector has an optical connector housing. The optical connector housing is formed by inserting a slider into a base end wall of an arm side member so as to be freely advanced and retreated. A cam following face is formed on an inner wall face of an arm portion of the arm side member. A claw portion is formed on a tip side of the arm portion. An opening angle driving cam member is connected to a tip side of the slider. A ferrule is arranged between the arm portions on a forward side of the opening angle driving cam member. When the slide is moved backward, the opening angle driving cam member is moved backward and is operated to angularly open the arm portion through the cam following face. This opening angle state is maintained by making the opening angle driving cam member abut on a stationary face of the cam following face. The claw portion is dislocated from an engaging position with the connecting partner side by the angular opening of the arm portion so that the connection of the optical connector is released.

A fixing component for fixing an optical fiber cord to an optical connector in a press-fitting manner by compression deformation is formed with a connected combination of a tension member fixing portion for fixing, in a press-fitting manner, a tension member of the optical fiber cord put on an outer peripheral surface of the optical connector to the outer peripheral surface and a sheath fixing portion for fixing, in a press-fitting manner, a sheath of the cord put on the outer peripheral surface of the connector to the outer peripheral surface, and has a slit formed between the tension member fixing portion and the sheath fixing portion, and adapted to absorb compressed and deformed part of either or both of the two fixing portions.

Optical fiber cord fixing component

An optical connector housing having arm portions extending from both end sides of the face of the base end side. A space placed between the arm portions is constituted as ferrule accommodation space. An engaging portion which is engaged in an object to be connected is formed at the tip end side of the respective arm portions. A surface of an angle widening drive cam, which widens the arm portions when the ferrule is drawn to the face of the base end side, protrudes from and is formed on the inner wall of the arm portions extending from the position of the rear end face of the ferrule accommodated in the accommodation space to the base end side of the optical connector housing.

OPTICAL CONNECTOR HOUSING, OPTICAL CONNECTOR USING THE OPTICAL CONNECTOR HOUSING, AND CONNECTION STRUCTURE BETWEEN AN OPTICAL CONNECTOR USING THE SAME OPTICAL CONNECTOR HOUSING AND AN OPTICAL COMPONENT

A connector adapter including a light emitting element for emitting a laser beam and connected with a plug having an optical fiber, whereby the laser beam emitted from the light emitting element is introdued into the optical fiber. The connector adapter comprises a shutter member fixed in a connector and including a base portion having a first spring portion and a shutter portion connected to the base portion. The base portion undergoes elastic deformation at the first spring portion so that the shutter portion recedes from the optical path of the laser beam when the plug is pushed into the adapter to be attached thereto, and is restored from the elastic deformation so that the shutter portion intercepts the optical path of the laser beam when the plug is drawn out of the adapter to be detached therefrom.

Connector adapter

Method of manufacturing an optical connector

A cleaning tool includes a support substrate, a cleaning member, a shaft member where the cleaning member is connected to one end of the shaft member detachably, and support member mounted to the a support substrate for supporting the one end of the shaft member with the cleaning member so that the shaft member and cleaning member are oscillated freely in a direction which intersects perpendicularly to an axial direction of the shaft member. The cleaning tool may be used to clean an end surface of a ferrule of the optical connector.

Cleaning tool for optical connectors

A ferrule for an optical connector wherein the work efficiency of the manufacture is increased by reducing the time necessary for grinding and the reliability of the connection of the optical connectors is improved. A front end surface (2) of a ferrule (1) comprises a flat surface (16) vertical to the central axes of optical fiber insertion holes (3) and a slanting surface (15). A step (17) is provided at the upper end of a slanting surface (15) and the flat surface (16) protrudes frontward by the step (17) with respect to the slanting surface (15). The optical fiber insertion holes (3) open at the slanting surface (16) and pin engagement holes (4) are provided on both sides of the optical fiber insertion holes (3).

Ferrule for optical connector and method for manufacturing optical

The backplane connector of the present invention can improve the fitting accuracy of the optical connectors A and B at the backplane 1 side and the package 2 side respectively and protect the backplane 1 from damages caused by being pressed against the first housing 3 when the first housing 3 is fit in the backplane 1. In the first housing 3 mounted floating in the backplane 1 is housed the second housing 7 by latching and connecting the latching projection 4 to the latching pawl 10, the backplane side optical connector plug 14 is incorporated in the second housing 7. And, the package side optical connector plug 23 is incorporated in the third housing 18 of the package 2. Then, the third housing 18 is inserted in the first housing 3, and the unlatching part 20 at the third housing 18 side presses down the tip side slope 13 of the latching pawl 10 to unlatch and disconnect the latching pawl 10 from the latching projection 4. In this status, the ferrules 16 and 25 of the backplane side and the package side optical connector plugs 14 and 23 are positioned and connected to connect the backplane 1 to the package 2 optically.

Backplane connector

Growing community of inventors

Tokyo, Japan

Naoko Shimoji