US6874953B2
Expired / Lapsed
US
⏱️ 0.0 years remaining
Methods and apparatus for fiber-optic modules with shielded housings/covers with fingers
Assignee: Lumentum Operations LLC
•
Filing: 2003-07-11
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Granted: 2005-04-05
•
Expires: 2023-07-11
Abstract
Abstract A fiber-optic module having a housing/shielding unit and a module chassis frame having optical, electrical and electro-optical components. The housing/shielding unit functions both as a protective outer housing and an electromagnetic shield. The housing/shielding unit includes forward fingers for a flush mounting in one embodiment and backward fingers for an extended mounting in another embodiment. The fingers can contact a bezel, faceplate or wall of host system to ground the housing/shielding unit to a chassis ground. The module chassis frame may be formed of a conductive material and grounded as well through a host system faceplate or otherwise to the chassis ground. A transmit ground for transmitter components and a receive ground for receiver components are isolated from the chassis ground.
Inventors
- 👤 Edwin Dair
- 👤 Wenbin Jiang
- 👤 Cheng Ping Wei
- 👤 Yong Peng Sim
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 06:33
CPC Classifications
G; G02; G02B; G02B6/00; G02B6/24; G02B6/42; G02B6/4201; G02B6/4274; G02B6/4277; G02B6/4219; G02B6/4236; G02B6/4245; G02B6/4246; G02B6/4256; G02B6/4292
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
152 words
A method of assembling an opto-electronic module comprising: forming a shielded housing with an open end, the shielded housing formed out of a sheet of conductive material to provide electromagnetic radiation shielding and protection of components, the shielded housing including one or more fingers to couple the shielded housing to ground; assembling optical, electrical and optical-electrical components into a chassis to form a subassembly; inserting the subassembly into the open end of the shielded housing, the shielded housing around the subassembly; and closing the open end of the shielded housing to hold the subassembly and the shielded housing assembled together including folding a strap and a septum of the shielded housing, the strap folded across the open end to strap the subassembly into the shielded housing, the septum folded into the open end to couple to the bottom side of the shielded housing to hold the subassembly strapped into the shielded housing.
Claim 2
Independent Claim
152 words
A method of assembling an opto-electronic module comprising: forming a shielded housing with an open end, the shielded housing formed out of a sheet of conductive material to provide electromagnetic radiation shielding and protection of components, the shielded housing including one or more fingers to couple the shielded housing to ground; assembling optical, electrical and optical-electrical components into a chassis to form a subassembly; inserting the subassembly into the open end of the shielded housing, the shielded housing around the subassembly; and closing the open end of the shielded housing to hold the subassembly and the shielded housing assembled together including folding a strap and a septum of the shielded housing, the strap folded across the open end to strap the subassembly into the shielded housing, the septum folded into the open end to couple to the bottom side of the shielded housing to hold the subassembly strapped into the shielded housing.
Claim 3
Dependent Claim
22 words
The method of claim 1 wherein, the shielding housing is a one-piece shielding housing to protect components and to shield electromagnetic radiation.
Claim 4
Dependent Claim
36 words
The method of claim 1 wherein, the open end is a back side and the inserting includes inserting a front end of the subassembly into the open end of the back side of the shielded housing.
Claim 5
Dependent Claim
54 words
The method of claim 3 wherein, the closing of the open end of the back side includes folding a left side wing and a right side wing into the open end, and folding a back side flap down over the open end to couple to he left side wing and the right side wing.
Claim 6
Dependent Claim
36 words
The method of claim 1 wherein, the open end is a front side and the inserting includes inserting a rear end of the subassembly into the open end of the front side of the shielded housing.
Claim 7
Dependent Claim
73 words
The method of claim 1 wherein, the forming of the shielded housing includes stamping a pattern of the shielded housing into the sheet of conductive material, the pattern including the one or more fingers near an edge of the flat sheet, folding the sheet of conductive material along a plurality of fold lines into a multi-sided rectangularly shaped container but for the open end, and bending the one or more fingers into shape.
Claim 8
Independent Claim
136 words
A method to assemble an EMI shielding module comprising: forming a plurality of substantially equidistant spring fingers along an edge of a flat sheet; forming a strap at the edge of the flat sheet and a septum on the end of the strap; forming a pair of bottom flaps in the flat sheet; folding the flat sheet along axes to form a container substantially in the shape of rectangular box, the rectangular box having a first end and a second end, the first end having the plurality of finger along each of a plurality of edges and an opening for cable connectors, the second end having a backside flap; folding the strap across the opening for cable connectors; and coupling the septum to inner surfaces of the bottom flaps to hold the strap across the opening.
Claim 9
Independent Claim
136 words
A method to assemble an EMI shielding module comprising: forming a plurality of substantially equidistant spring fingers along an edge of a flat sheet; forming a strap at the edge of the flat sheet and a septum on the end of the strap; forming a pair of bottom flaps in the flat sheet; folding the flat sheet along axes to form a container substantially in the shape of rectangular box, the rectangular box having a first end and a second end, the first end having the plurality of finger along each of a plurality of edges and an opening for cable connectors, the second end having a backside flap; folding the strap across the opening for cable connectors; and coupling the septum to inner surfaces of the bottom flaps to hold the strap across the opening.
Claim 10
Dependent Claim
23 words
The method of claim 7 wherein, the EMI shielding module is a one-piece shielded housing to protect components and to shield electromagnetic radiation.
Claim 11
Dependent Claim
44 words
The method of claim 7 wherein, the EMI shielding module encloses a module chassis frame, the module chassis frame being a central structural support to which one or more optical, electrical and optical-electrical components used in transmission and reception of optical signals are attached.
Claim 12
Independent Claim
113 words
A method to assemble an optical transmitter and/or receiver, the method comprising: forming a plurality of fingers, a strap, and a septum along a first edge of a conductive sheet; placing the conductive sheet on a module chassis frame, the module chassis frame having a plurality of components used in transmitting and/or receiving optical signals; folding the conductive sheet around the module chassis frame such that the conductive sheet substantially encloses the module chassis frame but for a frontal opening adjacent to the first edge; and bending the strap and the septum around a front end of the module chassis frame to hold the folded conductive sheet and the module chassis frame together.
Claim 13
Independent Claim
113 words
A method to assemble an optical transmitter and/or receiver, the method comprising: forming a plurality of fingers, a strap, and a septum along a first edge of a conductive sheet; placing the conductive sheet on a module chassis frame, the module chassis frame having a plurality of components used in transmitting and/or receiving optical signals; folding the conductive sheet around the module chassis frame such that the conductive sheet substantially encloses the module chassis frame but for a frontal opening adjacent to the first edge; and bending the strap and the septum around a front end of the module chassis frame to hold the folded conductive sheet and the module chassis frame together.
Claim 14
Dependent Claim
22 words
The method of claim 10 wherein, the fingers to electrically ground the folded conductive sheet to a ground of a host system.
Claim 15
Dependent Claim
18 words
The method of claim 10 wherein, the conductive sheet is one of metal, conductive plastic, and plated plastic.
Claim 16
Dependent Claim
17 words
The method of claim 10 further comprising: bending the plurality of fingers outward from the frontal opening.
Claim 17
Dependent Claim
21 words
The method of claim 10 further comprising: lifting the plurality of fingers up from an outer surface of the conductive sheet.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2008-04-04 | 2008-10-04 | 2009-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2012-04-04 | 2012-10-04 | 2013-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2016-04-04 | 2016-10-04 | 2017-04-05 | $7700.00 | Window Closed / Lapsed |