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US 7,478,953 B2Granted
Electrical connection between bidirectional optical subassembly and circuit board in optical transceiver
AssigneeSumitomo Electric Industries, Ltd.
InventorYasuhiro Tanaka
Life of this patent
Estimating the term…
Abstract
The present invention is to provide an optical transceiver that installs a bi-directional optical sub-assembly. The bi-directional sub-assembly is installed within the transceiver and fixed by the holder with a pair of legs put the sub-assembly therebetween. By press-fitting these legs into respective pockets provided in the side of the transceiver, the sub-assembly is to be fixed with the housing. To press-fit the holder completes the fixing and the positioning of the sub-assembly at the same time.
Claims10
An optical transceiver, comprising:
- a circuit board that installs an electronic circuit;
- and
- a bi-directional optical subassembly including a first optical subassembly having a first optical axis and a second optical subassembly having a second optical axis substantially in perpendicular to the first optical axis, the second optical subassembly being electrically connected with the electronic circuit on the circuit board with a flexible printed circuit board,
- wherein the circuit board has a front edge with an obtuse angle with respect to the first optical axis, and
- wherein the flexible printed circuit board is configured to extend from the front edge of the circuit board to a direction substantially in parallel to the first optical axis, to be bent to a direction substantially in perpendicular to the circuit board to form a vertical portion, the vertical portion making the obtuse angle with respect to the first optical axis, to extend from a side of the vertical portion to form a connecting portion, and in the connecting portion, to be bent in a U-shaped cross section such that an end of the connecting portion is substantially in perpendicular to the second optical axis and substantially in parallel to the first optical axis.
2 more elements
An optical transceiver, comprising:
- a circuit board that installs an electronic circuit;
- and
- a bi-directional optical subassembly including a first optical subassembly having a first optical axis and a second optical subassembly having a second optical axis substantially in perpendicular to the first optical axis, the second optical subassembly being electrically connected with the electronic circuit on the circuit board with a flexible printed circuit board,
- wherein the circuit board provides an extension extending along the first optical axis to a side of the second optical subassembly, and
- wherein the flexible printed circuit board is configured to extend from a front side edge of the extension to a direction substantially in parallel to the second optical axis, and to be bent to a direction substantially in perpendicular to a primary surface of the circuit board to form a connecting portion.
2 more elements
Dependencies are inferred from the claim text.