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US 9,435,966 B2Granted
Lens device attachment to printed circuit board
AssigneeAvago Technologies General IP (Singapore) Pte. Ltd.
InventorsDavid J. K. Meadowcroft, Paul Yu
Life of this patent
Estimating the term…
Abstract
An optical assembly can be formed by providing a frame made of a plastic material on a surface of a printed circuit board (PCB), mounting at least one opto-electronic element on the surface of the PCB within the frame, and laser-welding a lens device onto the frame.
Claims20
An optical assembly, comprising:
- a printed circuit board (PCB);
- a frame made of a plastic material disposed on a surface of the PCB, the frame having a generally planar shape, an interior region, and a continuous perimeter with a flat surface extending in a plane around the interior region;
- at least one opto-electronic device mounted on the surface of the PCB within the interior region of the frame;
- and
- a lens device made of a plastic material, the lens device having a body portion and a fiber port portion, the fiber port portion being adapted to couple with an end of an optical fiber, the body portion being fused to the frame in alignment with the opto-electronic device, the body portion having an optics system disposed therein for coupling light between the end of the optical fiber and the opto-electronic device, the optic system comprising a reflector and a lens, a weld seam existing between the flat surface of the frame and a flat base of the body portion where the plastic material of the flat base of the body portion and the plastic material of the frame are fused together, the flat base of the body portion of the lens device contacting the flat surface of the frame, wherein contact between the flat base of the body portion of the lens device and the flat surface of the frame does not restrict planar movement of the lens device with respect to the frame absent the weld seam.
2 more elements
The optical assembly of claim wherein the reflector defines a first optical path extending between the opto-electronic device and the reflector, and a second optical path extending between the reflector and the fiber port, the fiber port having an optical axis parallel to the surface of the PCB.
An optical assembly, comprising:
- a printed circuit board (PCB), the PCB having a surface containing one or more optically detectable points of reference;
- a frame disposed on the surface of the PCB, the frame having a generally planar shape, an interior region, and a continuous perimeter with a flat surface extending in a plane around the interior region;
- at least one opto-electronic device mounted on the surface of the PCB within the interior region of the frame, the location of the opto-electronic device on the surface of the PCB being based on alignment of the opto-electronic device with said one or more optically detectable points of reference;
- and
- a lens device attached to the frame in alignment with the opto-electronic device, the alignment of the lens device with the opto-electronic device being based on alignment of the lens device with said one or more of the optically detectable points of reference,
- wherein, the lens device contains at least one optical element for optically coupling an optical fiber to the opto-electronic device, a weld between the flat surface of the frame and a flat base portion of the lens device fuses the lens device and frame together after the lens device is in alignment such that the flat base portion of the lens device contacts the flat surface of the frame.
3 more elements
An optical assembly, comprising:
- a printed circuit board (PCB), a surface of the PCB having one or more optically detectable points of reference;
- a frame made of a plastic material disposed on a surface of the PCB, the frame having a generally planar shape, an interior region, and a continuous perimeter with a flat surface extending in a plane around the interior region;
- at least one opto-electronic device mounted on the surface of the PCB within the interior region of the frame, the location of the opto-electronic device on the surface of the PCB being determined by one or more of the optically detectable points of reference;
- and
- a lens device made of a plastic material, the lens device having a body portion and a fiber port portion, the fiber port portion being adapted to couple with an end of an optical fiber, the body portion being fused to the frame in alignment with the opto-electronic device, the body portion having an optics system disposed therein for coupling light between the end of the optical fiber and the opto-electronic device, a weld seam existing between the flat surface of the frame and a flat base of the body portion where the plastic material of the flat base of the body portion and the plastic material of the frame are fused together, the flat base of the body portion of the lens device contacting the flat surface of the frame, wherein contact between the flat base of the body portion of the lens device and the flat surface of the frame does not restrict planar movement of the lens device with respect to the frame absent the weld seam.
2 more elements
Dependencies are inferred from the claim text.