Multi-element LED lamp package
First Claim
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1. A light emitting diode (LED) lamp, comprising:
- a reflector cup having a vertex, a focal point, a principal axis, an inside surface, and an open face;
a first LED die disposed within the reflector cup at a first position; and
at least one additional LED die disposed within the reflector cup at at least one additional position non-coincident with the first position;
wherein the lamp includes an asymmetric lens disposed over the reflector cup, the lamp outputs a first beam centered in a first direction, and the lamp outputs a second beam centered in a second direction that is non-parallel to the first direction.
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Abstract
In one embodiment, a single light emitting diode lamp package includes at least two light emitting devices that can be switched independently of one another and thus may be useful in vehicular lighting applications, for example low and high beam headlights. In another embodiment, a LED device includes a first LED die and at least one additional LED die disposed at different positions within a common reflector cup. Multiple LED sub-assemblies may be mounted to a common lead frame along non-coincident principal axes. Methods for varying intensity or color from multi-LED lamps are further provided.
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Citations
46 Claims
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1. A light emitting diode (LED) lamp, comprising:
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a reflector cup having a vertex, a focal point, a principal axis, an inside surface, and an open face; a first LED die disposed within the reflector cup at a first position; and at least one additional LED die disposed within the reflector cup at at least one additional position non-coincident with the first position; wherein the lamp includes an asymmetric lens disposed over the reflector cup, the lamp outputs a first beam centered in a first direction, and the lamp outputs a second beam centered in a second direction that is non-parallel to the first direction. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46)
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Specification