Highly efficient LED lamp
First Claim
1. A highly efficient LED lamp comprising:
- an optical module including;
at least one light emitting diode (LED) that emits light with a wide divergence;
a non-imaging optical element (NIO) that includes a refractive member located around a LED optical axis and a total internal reflection member located around the refractive member, wherein the refractive member and the total internal reflection member are integrated in a single transparent element having a mutual focal point, wherein the NIO element collects a significant amount of light emitted by the LED with wide divergence located at the focal point, to compress the collected light with high efficiency into a beam with a generally different angular spread in a horizontal plane and a vertical plane and to direct the compressed light outside of the lamp; and
a transparent window to transmit light outside of the lamp; and
a housing having an electrical connector connected to an outside power source, the connector electrically connected to the LED.
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Accused Products
Abstract
A highly efficient LED lamp includes an optical module and a housing. The optical module has at least one light emitting diode (LED) that emits light with a wide divergence, a non-imaging optical (NIO) element and a transparent window. The NIO element includes a refractive member located around a LED optical axis and a total internal reflection member located around the refractive member. The refractive member and the total internal reflection member are integrated in a single transparent element having a mutual focal point, wherein the NIO element collects a significant amount of light emitted by the LED with wide divergence located at the focal point, to compress the collected light with high efficiency into a beam with a generally different angular spread in a horizontal plane and a vertical plane and to direct the compressed light outside of the lamp.
133 Citations
10 Claims
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1. A highly efficient LED lamp comprising:
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an optical module including;
at least one light emitting diode (LED) that emits light with a wide divergence;
a non-imaging optical element (NIO) that includes a refractive member located around a LED optical axis and a total internal reflection member located around the refractive member, wherein the refractive member and the total internal reflection member are integrated in a single transparent element having a mutual focal point, wherein the NIO element collects a significant amount of light emitted by the LED with wide divergence located at the focal point, to compress the collected light with high efficiency into a beam with a generally different angular spread in a horizontal plane and a vertical plane and to direct the compressed light outside of the lamp; and
a transparent window to transmit light outside of the lamp; and
a housing having an electrical connector connected to an outside power source, the connector electrically connected to the LED. - View Dependent Claims (2, 3)
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4. An optical module including:
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at least one light emitting diode (LED) that emits light with a wide divergence;
a non-imaging optical element (NIO) that includes a refractive member located around a LED optical axis and a total internal reflection member located around the refractive member, wherein the refractive member and the total internal reflection member are integrated in a single transparent element having a mutual focal point, wherein the NIO element collects a significant amount of light emitted by the LED with wide divergence located at the focal point, to compress the collected light with high efficiency into a beam with a symmetrical angular spread in a horizontal plane and a vertical plane;
a transparent window to transmit shaped light outside of the lamp, wherein the NIO element directs the compressed light towards the transparent window; and
a light shaping element located between the non-imaging optical element and the transparent window. - View Dependent Claims (5, 6)
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7. A highly efficient LED lamp comprising:
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an optical module including;
at least one light emitting diode (LED) that emits light with a wide divergence;
a non-imaging optical element (NIO) that includes a refractive member located around a LED optical axis and a total internal reflection member located around the refractive member, wherein the refractive member and the total internal reflection member are integrated in a single transparent element having a mutual focal point, wherein the NIO element collects a significant amount of light emitted by the LED with wide divergence located at the focal point, to compress the collected light with high efficiency into a beam with a generally different angular spread in a horizontal plane and a vertical plane, and to direct the compressed light outside of the lamp; and
a transparent window to transmit the light outside of the lamp;
a housing having an electrical connector connected to an outside power source; and
an electronic adapter/converter mounted to the housing, the adapter/converter having an electrical input and an electrical output, wherein the electrical input is connected to the electrical connector in the housing and the electrical output is connected to the LED. - View Dependent Claims (8, 9, 10)
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Specification