Nippon Telegraph and Telephone Corporation

3m Innovative Properties Company

Sumitomo Electric Industries, Limited

The Furukawa Electric Co., Ltd.

Fujikura Limited

Hiroyuki Tanase

Kuniaki Terakawa

Masanobu Toyonaga

Tatsuya Nakajima

Masashi Awamori

Kazuhiro Takizawa

Kenichiro Ohtsuka

Daizo Nishioka

Takaya Yamauchi

Masato Shiino

Akihiko Yazaki

Naoko Shimoji

Masahiro Hamada

Tomoyasu Oike

Daigo Saitoh

The optical fiber connector includes a connector housing (), having a splice assembly () therein, and an end cap () attached to one end of the connector housing (), from which leads out a primary coating portion (). A boundary () between a portion of the primary coating portion (), obtained by removing an outer coating () of the inner cover () while leaving an inner coating (), and a portion obtained by leaving the outer coating () of the inner cover (), is located in the interior of the connector housing (). The end cap () is provided in the interior thereof with a tubular portion and an extension extending from an end of the tubular portion, the tubular portion including an insert hole for an insertion of the primary coating portion () approximately coaxially with a guiding hole formed in the splice assembly accommodated in the connector housing () for guiding the primary coating portion () leading out from the splice assembly. The extension includes a strain-control hole, communicating with the insert hole, for receiving said boundary () of the primary coating portion (), and for controlling stress at the boundary ().

Optical fiber connector

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

Growing community of inventors

Tsukuba, Japan

Hiroyuki Tanase