Optical module and process for manufacturing the same

1. An optical module, comprising:

a lens-containing optically-transmissive member; and

a receptacle,

wherein said receptacle includes:

an optical connector-inserting section for inserting an optical connector;

a fixing section for fixing the lens-containing optically-transmissive member, in which said lens-containing optically-transmissive member is fixed; and

an device-installing section for installing a semiconductor device serving as a light emitting device or a light receiving device;

said optical connector-inserting section, said fixing section and said device-installing section being coaxially arranged in this sequence,

wherein said fixing section communicates with said device-installing section,

wherein said lens-containing optically-transmissive member includes a main body and a lens provided in one end of said main body, and

wherein said main body of said lens-containing optically-transmissive member includes a first section and a second section, said first section having a first outer diameter, which is substantially equal to a first internal diameter of said fixing section, and said second section having a second outer diameter, which is smaller than said first outer diameter, and at least containing an end of said main body in a side of said device-installing section.

2. The optical module according to claim 1 , wherein said lens-containing optically-transmissive member is tapered, having gradually decreased outer diameter from said first section to said second section.

3. The optical module according to claim 1 , wherein said lens-containing optically-transmissive member has discontinuously changed outer diameter, which changes in a stepped section located in a boundary zone between said first section and said second section.

4. The optical module according to claim 1 , wherein said first sections is an end of said lens-containing optically-transmissive member in the side of said optical connector-inserting section.

5. The optical module according to claim 1 ,

wherein said first internal diameter is larger than a second internal diameter of said optical connector-inserting section,

wherein said receptacle has a stepwise surface facing the side of said fixing section in a boundary between said fixing section and said optical connector-inserting section, and

wherein one end of said lens-containing optically-transmissive member contacts with said stepwise surface.

6. The optical module according to claim 1 , wherein said lens-containing optically-transmissive member is fixed by adhering to said fixing section with an adhesive agent.

7. The optical module according to claim 1 , wherein said receptacle is composed of a resin.

8. A process for manufacturing an optical module, comprising, in this sequence:

inserting said lens-containing optically-transmissive member of said optical module according to claim 1 in said fixing section; and

fixing said lens-containing optically-transmissive member by adhering to said fixing section with an adhesive agent.