Optical module

Patent metadata

Field	Value
Publication number	US-10042134-B2
Application number	US-201715834462-A
Country	US
Kind code	B2
Filing date	Dec 7, 2017
Priority date	Jun 2, 2015
Publication date	Aug 7, 2018
Grant date	Aug 7, 2018

Abstract

An optical module for connecting photoelectric conversion device on a substrate to a ferrule connected to an optical fiber includes a body configured to be mounted on the substrate, a first lens disposed on the body at a side thereof connectable to the ferrule, a second lens disposed on the body at a side thereof facing the substrate, and a core disposed in the body between the first lens and the second lens, wherein a refractive index of the core is higher than a refractive index of the body.

First claim

What is claimed is:

1. An optical module for connecting a photoelectric conversion device on a substrate to a ferrule connected to an optical fiber, the optical module comprising:
a body configured to be mounted on the substrate;
a first lens disposed on the body at a side thereof connectable to the ferrule;
a second lens disposed on the body at a side thereof facing the substrate; and
a core disposed in the body between the first lens and the second lens,
wherein the core has faces on which a coating film is formed, and a refractive index of the coating film is lower than a refractive index of the core, and
wherein the body, the first lens, and the second lens are formed as a unitary, seamless structure, and the body has a space formed therein that is exposed through an opening on a lateral face thereof, the core being placed in the space inside the body through the opening on the lateral face.

2. The optical module as claimed in claim 1 , wherein the core has a sloped face configured to reflect light entering the core through one of the first lens and the second lens.

3. The optical module as claimed in claim 1 , comprising a plurality of said first lenses and a plurality of said second lenses, wherein the core is disposed in the body between the plurality of first lenses and the plurality of second lenses, the core including a first rectangular plate and a second rectangular plate perpendicular to and seamlessly connected with the first rectangular plate, the first rectangular plate facing the plurality of first lenses, and the second rectangular plate facing the plurality of second lenses.

Assignees

• Fujitsu Component Ltd

Inventors

• Zhang Hongfei
• Kurashima Shigemi
• Moriyama Satoshi
• Akieda Shinichiro
• Gappa Rie
• Kanda Mitsuki

Classifications

• G02B6/4246

  Bidirectionally operating package structures · CPC title

• G02B6/3882

  using rods, pins or balls to align a pair of ferrule ends · CPC title

• G02B6/4292 Primary

  the light guide being disconnectable from the opto-electronic element, e.g. mutually self aligning arrangements · CPC title

• G02B6/4206

  Optical features (G02B6/4207, G02B6/421 take precedence) · CPC title

• G02B6/4214

  the intermediate optical element having redirecting reflective means, e.g. mirrors, prisms for deflecting the radiation from horizontal to down- or upward direction toward a device (G02B6/4246 takes precedence) · CPC title