Compact optical assembly for optoelectronic transceivers
First Claim
1. An optical assembly comprising:
- a first lens positioned along a first axis and configured to focus light from a first light source along said first axis;
a second lens positioned along said first axis and configured to focus light from said first lens onto an optical target;
a third lens positioned along a second axis and configured to focus light from a second light source along said second axis;
a reflector positioned along said second axis, configured to reflect light from said third lens onto a fourth lens; and
said fourth lens positioned on a third axis angled from said second axis and configured to focus light from said reflector onto an optical detector.
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Accused Products
Abstract
An optical assembly includes a first lens positioned along a first axis and configured to focus light from a light source along the first axis, and a second lens positioned along the first axis and configured to focus light from the first lens onto an optical target. A third lens is positioned along a second axis and configured to approximately collimate light from a second light source along the second axis, and a reflector positioned along the second axis is configured to reflect light from the third lens onto a fourth lens. The fourth lens is positioned on a third axis angled from the second axis and configured to focus light from the reflector onto an optical detector. Furthermore, the optical assembly is preferably a single molded optic. The optical assembly may be used in an optoelectronic transceiver having an optical subassembly, including a light source and an optical detector. The optical assembly is used to couple a pair of closely spaced optical fibers to the light source and optical detector.
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Citations
33 Claims
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1. An optical assembly comprising:
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a first lens positioned along a first axis and configured to focus light from a first light source along said first axis;
a second lens positioned along said first axis and configured to focus light from said first lens onto an optical target;
a third lens positioned along a second axis and configured to focus light from a second light source along said second axis;
a reflector positioned along said second axis, configured to reflect light from said third lens onto a fourth lens; and
said fourth lens positioned on a third axis angled from said second axis and configured to focus light from said reflector onto an optical detector. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. An optoelectronic transceiver comprising:
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an optical subassembly comprising;
a light source; and
an optical detector; and
an optical assembly comprising;
a first lens positioned along a first axis and configured to focus light from said light source along said first axis;
a second lens positioned along said first axis and configured to focus light from said first lens onto an optical target;
a third lens positioned along a second axis and configured to focus light from an optical fiber along said second axis;
a reflector positioned along said second axis, configured to reflect light from said third lens onto a fourth lens;
said fourth lens positioned on a third axis angled from said second axis and configured to focus light from said reflector onto said optical detector. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25)
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- 26. An optical assembly comprising a single molded optic component having a first optical path positioned along a first axis for transmitting and focusing light from a first light source onto a first target and having a second optical path that is bent by a single reflector, the second optical path having a first portion positioned along a second axis parallel to and displaced from the first axis and having a second portion positioned on a third axis angled from said second axis, the second optical path for transmitting and focusing light from a second light source onto a second target.
Specification