# US 8,465,213 B2 · Optical module

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- Number: US 8,465,213 B2
- Document ID: US8465213B2
- Status: Granted
- Kind: B2
- Application number: 12/967,202
- Filed: 2010-12-14
- Published: 2012-02-02
- Granted: 2013-06-18
- Earliest claimed: 2010-07-30
- Assignees: Hitachi Cable, Ltd.
- Applicants: Kenichi Tamura; Yoshiaki Ishigami
- Inventors: Kenichi Tamura; Yoshiaki Ishigami
- Web page: https://patentgrep.com/patent/US8465213B2

## CPC

- G02B 6/4201: {Packages, e.g. shape, construction, internal or external details}
- G02B 6/4249: {comprising arrays of active devices and fibres}
- G02B 6/428: {containing printed circuit boards [PCB]}
- G02B 6/4292: {the light guide being disconnectable from the opto-electronic element, e.g. mutually self aligning arrangements}
- G02B 6/4214: {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)}
- G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS

## Abstract

An optical component of an optical module has a junction surface facing an optical connector and a pair of side surfaces apart from each other in a direction perpendicular to a connection direction of the optical connector. A support member has a pair of sidewalls facing the side surfaces of the optical component respectively and concave/convex portions provided in the sidewalls and concave or convex toward the side surfaces of the optical component. The side surfaces of the optical component are fixed to the sidewalls of the support member via an adhesive, and the adhesive is also applied on surfaces of the concave/convex portions of the sidewalls.

## Claims

### Claim 1

An optical module comprising:
a circuit board;
a photoelectric conversion element mounted on said circuit board;
an optical component served for connection with an optical connector attached to an end portion of an optical fiber to optically couple the end portion of the optical fiber and said photoelectric conversion element, said optical component having a junction surface facing the optical connector and a pair of side surfaces apart from each other in a direction perpendicular to a connection direction of the optical connector; and
a support member fixed to said circuit board and supporting said optical component, said support member having a pair of sidewalls and concave/convex portions, the sidewalls facing the side surfaces of said optical component respectively and being fixed to the side surfaces of said optical component via an adhesive, the concave/convex portions being provided in the sidewalls and concave or convex toward the side surfaces of said optical component, and the adhesive being applied also on surfaces of the concave/convex portions.

### Claim 2 (depends on 1)

The optical module according to claim 1, wherein
the concave/convex portions pass through the sidewalls in the direction in which the sidewalls are apart from each other.

### Claim 3 (depends on 2)

The optical module according to claim 2, wherein
the adhesive is of an ultraviolet curing type.

### Claim 4 (depends on 3)

The optical module according to claim 3, wherein
the side surfaces of said optical component each have a convex/concave portion convex or concave toward the sidewalls, and the adhesive is applied on surfaces of the convex/concave portions.

### Claim 5 (depends on 4)

The optical module according to claim 4, wherein:
said optical component has a rear surface located opposite the junction surface in terms of the connection direction of the optical connector;
said support member has an end wall facing the rear surface of said optical component; and
the rear surface of said optical component is fixed to the end wall of said support member via an adhesive,
the optical module further comprising
a spacer member disposed between the rear surface of said optical component and the end wall.

### Claim 6 (depends on 5)

The optical module according to claim 5, wherein
said spacer member has a hook portion engaged with the end wall.

### Claim 7 (depends on 1)

The optical module according to claim 1, wherein
the side surfaces of said optical component each have a convex/concave portion convex or concave toward the sidewalls, and the adhesive is applied on surfaces of the convex/concave portions.

### Claim 8 (depends on 7)

The optical module according to claim 7, wherein:
said optical component has a rear surface located opposite the junction surface in terms of the connection direction of the optical connector;
said support member has an end wall facing the rear surface of said optical component; and
the rear surface of said optical component is fixed to the end wall of said support member via an adhesive,
the optical module further comprising
a spacer member disposed between the rear surface of said optical component and the end wall.

### Claim 9 (depends on 8)

The optical module according to claim 8, wherein
said spacer member has a hook portion engaged with the end wall.

### Claim 10 (depends on 2)

The optical module according to claim 2, wherein
the side surfaces of said optical component each have a convex/concave portion convex or concave toward the sidewalls, and the adhesive is applied on surfaces of the convex/concave portions.

### Claim 11 (depends on 10)

The optical module according to claim 10, wherein:
said optical component has a rear surface located opposite the junction surface in terms of the connection direction of the optical connector;
said support member has an end wall facing the rear surface of said optical component; and
the rear surface of said optical component is fixed to the end wall of said support member via an adhesive,
the optical module further comprising
a spacer member disposed between the rear surface of said optical component and the end wall.

### Claim 12 (depends on 11)

The optical module according to claim 11, wherein
said spacer member has a hook portion engaged with the end wall.

### Claim 13 (depends on 1)

The optical module according to claim 1, wherein:
said optical component has a rear surface located opposite the junction surface in terms of the connection direction of the optical connector;
said support member has an end wall facing the rear surface of said optical component; and
the rear surface of said optical component is fixed to the end wall of said support member via an adhesive,
the optical module further comprising
a spacer member disposed between the rear surface of said optical component and the end wall.

### Claim 14 (depends on 13)

The optical module according to claim 13, wherein
said spacer member has a hook portion engaged with the end wall.

### Claim 15 (depends on 2)

The optical module according to claim 2, wherein:
said optical component has a rear surface located opposite the junction surface in terms of the connection direction of the optical connector;
said support member has an end wall facing the rear surface of said optical component; and
the rear surface of said optical component is fixed to the end wall of said support member via an adhesive,
the optical module further comprising
a spacer member disposed between the rear surface of said optical component and the end wall.

### Claim 16 (depends on 15)

The optical module according to claim 15, wherein
said spacer member has a hook portion engaged with the end wall.

### Claim 17 (depends on 3)

The optical module according to claim 3, wherein:
said optical component has a rear surface located opposite the junction surface in terms of the connection direction of the optical connector;
said support member has an end wall facing the rear surface of said optical component; and
the rear surface of said optical component is fixed to the end wall of said support member via an adhesive,
the optical module further comprising
a spacer member disposed between the rear surface of said optical component and the end wall.

### Claim 18 (depends on 17)

The optical module according to claim 17, wherein
said spacer member has a hook portion engaged with the end wall.
