Optical connector ferrule

Patent metadata

Field	Value
Publication number	US-9632258-B2
Application number	US-201615076059-A
Country	US
Kind code	B2
Filing date	Mar 21, 2016
Priority date	Mar 25, 2015
Publication date	Apr 25, 2017
Grant date	Apr 25, 2017

Abstract

Disclosed is an optical connector ferrule including
a main body portion having inside a plurality of optical paths that are parallel that are to each other; and a reinforcing member having a face parallel to an alignment direction of the plurality of the optical paths and having a linear expansion coefficient that is smaller than the linear expansion coefficient of the main body portion, wherein the reinforcing member has on a face of the optical path side thereof at least two limiting portions each having a face that limits an expansion and a contraction of the main body portion in the arrangement direction, the limiting portions being spaced apart in the arrangement direction.

First claim

What is claimed is:

1. An optical connector ferrule comprising:
a main body portion having inside a plurality of optical paths parallel that are to each other; and
a reinforcing member having a face parallel to an alignment direction of the plurality of the optical paths and having a linear expansion coefficient that is smaller than the linear expansion coefficient of the main body portion, wherein
the reinforcing member has on a face of the optical path side thereof at least two limiting portions each having a face that limits an expansion and a contraction of the main body portion in the alignment direction, the limiting portions being spaced apart in the alignment direction.

2. The optical connector ferrule according to claim 1 further including two of the reinforcing members, wherein the two reinforcing members are disposed opposing each other and sandwiching the plurality of the optical paths.

3. The optical connector ferrule according to claim 1 , wherein
the two limiting portions of the reinforcing member are disposed, on an outer side along the alignment direction with respect to the plurality of the optical paths, and are spaced apart with a space wider than a width of the plurality of the optical paths in the alignment direction.

4. The optical connector ferrule according to claim 1 , wherein the limiting portion is a protruding portion that is protruding out from the face on the optical path side of the reinforcing member.

5. The optical connector ferrule according to claim 1 , wherein the optical path is an optical fiber hole that has optical fiber inserted.

6. The optical connector ferrule according to claim 1 , wherein the optical path is a section that has optical signals pass therethrough in the main body portion.

Assignees

• Fujikura Ltd

Inventors

• Nishimura Akito

Classifications

• G02B6/3873

  Connectors using guide surfaces for aligning ferrule ends, e.g. tubes, sleeves, V-grooves, rods, pins, balls · CPC title

• G02B6/3834

  Means for centering or aligning the light guide within the ferrule · CPC title

• G02B6/3837

  forwarding or threading methods of light guides into apertures of ferrule centering means · CPC title

• G02B6/3814

  with cooling or heat dissipation means · CPC title

• G02B6/3861

  Adhesive bonding (adhesives in general C09J) · CPC title