LED lighting
First Claim
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1. An LED-based lighting system with enhanced convective through-flow in an approximately vertical direction, the apparatus comprising:
- a light generation module comprising a first plurality of LED sources and a second plurality of LED sources, the first plurality of LED sources and the second plurality of LED sources arranged to illuminate along an optical axis in a distal direction;
a first region defined by a first perimeter, the first perimeter forming a first polygon such that each of the first plurality of LED sources defines a vertex of the first polygon;
a second region defined by a second perimeter, the second perimeter forming a second polygon such that each of the second plurality of LED sources defines a vertex of the second polygon;
a third region enclosed by the first region and outside of the second region; and
,a first plurality of optics adapted to optically align with the first plurality of LED sources and a second plurality of optics adapted to optically align to the second plurality of LED sources;
for each one of the LED sources in the first plurality of LED sources and the second plurality of LED sources of the light generation module;
at least one heat transfer member in substantial thermal communication with the first plurality of LED sources and at least one heat transfer member in substantial thermal communication with the second plurality of LED sources, the heat transfer member comprising a thermally conductive path extending proximally along a heat transfer axis that is substantially parallel to the optical axis, wherein, in operation, the heat transfer member conducts heat generated by the LED source substantially proximally;
at least one aperture defined in the third region, each of the at least one apertures providing an axial fluid communication path through the aperture and approximately parallel to the optical axis to remove heat from one or more of the heat transfer members, wherein each of the axial fluid communication paths extends proximally to exhaust to ambient atmosphere.
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Abstract
Apparatus and associated methods relate to development of a LED system with high thermal dissipation power relative to the system weight by the inclusion of open regions. The open regions reduce the weight of the optical system while improving airflow. Associated optics are described to efficiently and evenly distribute the light from an LED by tailoring the optical distribution. In addition, circuitry and methods are described to allow for the LED system to operate with existing power sources such as ballast or offline AC voltage sources or both.
46 Citations
20 Claims
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1. An LED-based lighting system with enhanced convective through-flow in an approximately vertical direction, the apparatus comprising:
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a light generation module comprising a first plurality of LED sources and a second plurality of LED sources, the first plurality of LED sources and the second plurality of LED sources arranged to illuminate along an optical axis in a distal direction; a first region defined by a first perimeter, the first perimeter forming a first polygon such that each of the first plurality of LED sources defines a vertex of the first polygon; a second region defined by a second perimeter, the second perimeter forming a second polygon such that each of the second plurality of LED sources defines a vertex of the second polygon; a third region enclosed by the first region and outside of the second region; and
,a first plurality of optics adapted to optically align with the first plurality of LED sources and a second plurality of optics adapted to optically align to the second plurality of LED sources; for each one of the LED sources in the first plurality of LED sources and the second plurality of LED sources of the light generation module; at least one heat transfer member in substantial thermal communication with the first plurality of LED sources and at least one heat transfer member in substantial thermal communication with the second plurality of LED sources, the heat transfer member comprising a thermally conductive path extending proximally along a heat transfer axis that is substantially parallel to the optical axis, wherein, in operation, the heat transfer member conducts heat generated by the LED source substantially proximally; at least one aperture defined in the third region, each of the at least one apertures providing an axial fluid communication path through the aperture and approximately parallel to the optical axis to remove heat from one or more of the heat transfer members, wherein each of the axial fluid communication paths extends proximally to exhaust to ambient atmosphere. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An LED-based lighting system with enhanced convective through-flow in an approximately vertical direction, the apparatus comprising:
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a light generation module comprising a first plurality of LED sources and a second plurality of LED sources, the first plurality of LED sources and the second plurality of LED sources arranged to illuminate along an optical axis in a distal direction; a first region defined by a first perimeter, the first perimeter forming a first polygon such that each of the first plurality of LED sources defines a vertex of the first polygon; a second region defined by a second perimeter, the second perimeter forming a second polygon such that each of the second plurality of LED sources defines a vertex of the second polygon; a third region enclosed by the first region and outside of the second region; and
,for each one of the LED sources in the first plurality of LED sources and the second plurality of LED sources of the light generation module; at least one heat transfer member in substantial thermal communication with the first plurality of LED sources and at least one heat transfer member in substantial thermal communication with the second plurality of LED sources, the heat transfer member comprising a thermally conductive path extending proximally along a heat transfer axis that is substantially parallel to the optical axis, wherein, in operation, the heat transfer member conducts heat generated by the LED source substantially proximally; at least one aperture defined in the third region, each of the at least one apertures providing an axial fluid communication path through the aperture and approximately parallel to the optical axis to remove heat from one or more of the heat transfer members, wherein each of the axial fluid communication paths extends proximally to exhaust to ambient atmosphere. - View Dependent Claims (12, 13, 14, 15)
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16. An LED-based lighting system with enhanced convective through-flow in an approximately vertical direction, the apparatus comprising:
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a light generation module comprising a first plurality of LED sources and a second plurality of LED sources, the first plurality of LED sources and the second plurality of LED sources arranged to illuminate along an optical axis in a distal direction; a first region defined by a first perimeter, the first perimeter forming a first polygon such that each of the first plurality of LED sources defines a vertex of the first polygon; a second region defined by a second perimeter, the second perimeter forming a second polygon such that each of the second plurality of LED sources defines a vertex of the second polygon; a third region enclosed by the first region and outside of the second region; and
,means for conducting heat generated by the LED source substantially proximally; at least one aperture defined in the third region, each of the at least one apertures providing an axial fluid communication path through the aperture and approximately parallel to the optical axis to remove heat from one or more of heat transfer members, wherein each of the axial fluid communication paths extends proximally to exhaust to ambient atmosphere. - View Dependent Claims (17, 18, 19, 20)
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Specification