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EP0278507A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Optical semiconductor module

Assignee: Mitsubishi Electric Corp
•
Filing: 1988-02-11
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Granted: —
•
Expires: 2008-02-11
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Abstract

Abstract An optical semiconductor module comprises an optical semiconductor assembly (9) having a light transmitting aperture (14), a housing (1) having a joint surface (16) at its one end to be joined to the optical semiconductor assembly, an outer male screw portion (2) and a first hole (24) for receiving an optical fiber supporter at its other end, a lens (6) held in a second hole formed in the housing so as to be in communicatively alignment with the light transmitting aperture (14) and the first hole (24). A slitted sleeve (18) is placed in a hole (19a,19b) communicated with the first hole (24) and a dummy ferrule (20) with an axially extending central bore (21) for passing light is placed between the first hole (24) and the lens (6). One end portion of the dummy ferrule (20) is inserted in the slitted sleeve (18) so as to be in contact with the optical fiber supporter when it is fitted.

Inventors

  • 👤 Akinobu C/O Mitsubishi Denki K.K. Suzuki

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-05 06:47
CPC Classifications
G; G02; G02B; G02B6/00; G02B6/24; G02B6/42; G02B6/4292; G02B6/36; G02B6/38; G02B6/3807; G02B6/3873; G02B6/3874; G02B6/3877

Claims Analysis

Total Claims: 6
Claim 1
Independent Claim 169 words
An optical semiconductor module comprising an optical semiconductor assembly (9) having a light transmitting aperture (14), a housing (1) having a joint surface (16) at its one end to be joined to said optical semiconductor assem­bly, an outer male screw portion (2) and a first hole means (24) for receiving an optical fiber supporter at its other end, a lens (6) held in a second hole means formed in said housing so as to be in communicatively alignment with said light transmitting aperture (14) and said first hole means (24), characterized by comprising a slitted sleeve (18) placed in a hole (19a,19b) communicated with said first hole means (24) and a dummy ferrule (20) with an axially extending central bore (21) for passing light which is placed between said first hole means (24) and said lens (6) so that one end portion of said dummy ferrule (20) is inserted in said slitted sleeve (18) so as to be in contact with said optical fiber supporter when it is fitted.
Claim 2
Dependent Claim 169 words
An optical semiconductor module comprising an optical semiconductor assembly (9) having a light transmitting aperture (14), a housing (1) having a joint surface (16) at its one end to be joined to said optical semiconductor assem­bly, an outer male screw portion (2) and a first hole means (24) for receiving an optical fiber supporter at its other end, a lens (6) held in a second hole means formed in said housing so as to be in communicatively alignment with said light transmitting aperture (14) and said first hole means (24), characterized by comprising a slitted sleeve (18) placed in a hole (19a,19b) communicated with said first hole means (24) and a dummy ferrule (20) with an axially extending central bore (21) for passing light which is placed between said first hole means (24) and said lens (6) so that one end portion of said dummy ferrule (20) is inserted in said slitted sleeve (18) so as to be in contact with said optical fiber supporter when it is fitted.
Claim 3
Dependent Claim 52 words
The optical semiconductor module according to claim 1, characterized in that said housing (1) is provided with an outer flange, and is separated into three pieces (1a,1b,1c) in the radial direction at an intermediate position of said flange and at a position in the body at the side of said lens (6).
Claim 4
Dependent Claim 43 words
The optical semiconductor module according to claim 2, characterized in that said first hole means (24) has an inner diameter which is greater than the outer diameter of said optical fiber supporter and smaller than the outer diameter of said slitted sleeve (18).
Claim 5
Dependent Claim 26 words
The optical semiconductor module according to claim 1, characterized in that said dummy ferrule (20) holds at least one optical fiber in the central bore (21).
Claim 6
Dependent Claim 49 words
The optical semiconductor module according to claim 4, characterized in that said lens (6) is supported by the third portion (1c) of said housing, and said dummy ferrule (20) is supported by the second portion (1b), and said lens and said dummy ferrule are in contact with each other.

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