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A portable luminaire includes an optical module, a power source 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 element and a transparent window. The non-imaging optical element (NIO) has a refractive member

A portable luminaire includes an optical module, a power source 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 element and a transparent window. The non-imaging optical element (NIO) has 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. 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 required pattern with a generally different angular distribution in a horizontal plane and a vertical plane, and to direct the compressed light outside of the luminaire.

대표청구항 ▼

What is claimed is: 1. A portable luminaire comprising: an optical module including, at least one light emitting diode (LED) that emits light with a wide divergence; a transparent window to transmit light outside the optical module; and a non-imaging optical element (NIO) that collects light emitte

What is claimed is: 1. A portable luminaire comprising: an optical module including, at least one light emitting diode (LED) that emits light with a wide divergence; a transparent window to transmit light outside the optical module; and a non-imaging optical element (NIO) that collects light emitted by the LED with high efficiency, compresses the collected light and directs the compressed light through the transparent window with a precalculated intensity distribution across a pattern, wherein the NIO further includes, a refractive member located around a LED optical axis having a first end that collects light from the LED and a second end opposite the first end to transmit light; a total internal reflection member located around the refractive member, wherein the TIR member has a first end to collect light and a second end opposite the first end to transmit light, and a wall formed therebetween wherein an outside surface of the wall is curved to reflect light through the second end of the refractive member with a precalculated divergence that does not exceed a maximum angle; and wherein the refractive member and the TIR member are integrated into a single transparent element having a mutual focal point; a base supporting the NIO element, wherein the base is a heat sink for the at least one LED; and a housing connected to the base, wherein the housing includes a controller therein to provide remote control operation of the optical module, a leveling mechanism to adjust the optical module with respect to a horizontal surface, and a rechargeable power source that is connected to the at least one LED through the controller. 2. The portable luminaire according to claim 1, wherein light is emitted with the precalculated intensity distribution across the pattern by shaping the curvature of the refractive member and the outside surface of the wall of the TIR member to provide different angular divergence in an orthogonal axes perpendicular to an optical module axis that is coincident with the LED optical axis. 3. The portable luminaire according to claim 2, wherein the curvature is a function of an incident angle, an intensity of the LED at the incident angle, a reflected angle, and a required intensity of the reflected light at the reflected angle in order to emit light in the precalculated pattern. 4. The portable luminaire according to claim 1, wherein the optical module further comprises a plurality of LEDs. 5. The portable luminaire according to claim 4, wherein the NIO element compresses light into a required pattern only in a vertical plane. 6. The portable luminaire according to claim 1, wherein the optical module provides a sectorial pattern in a horizontal plane. 7. The portable luminaire according to claim 6, wherein the NIO element is shaped as a hollow circle sector in a horizontal cross-section and the plurality of LEDs are connected to an inner side of the sector on an arc concentric to the hollow circle at a distance equal to the focal length of the NIO element from the first end of the refractive member, and the LED axes are coincident with the hollow circle radii. 8. The portable luminaire according to claim 1, wherein the optical module distributes light in an omnidirectional pattern in the horizontal plane. 9. The portable luminaire according to claim 1, wherein the controller includes an on/off switch, a mode selector, a dimming selector and a driver. 10. The portable luminaire according to claim 1, wherein the controller is preset to provide three levels of light intensity in a steady or a flash setting, and a remote control sensor selects a value for the on/off switch, a steady or flash state for the mode selector and a light intensity for the dimming selector. 11. The portable luminaire according to claim 1, wherein the light intensity includes three levels of light intensity. 12. The portable luminaire according to claim 1, including a solar element to recharge the power source. 13. An optical module including: at least one light emitting diode (LED) that emits light with a wide divergence; a transparent window to transmit light outside the optical module; and a non-imaging optical element (NIO) that collects light emitted by the LED with high efficiency, compresses the collected light and directs the compressed light through the transparent window with a precalculated intensity distribution across a pattern, wherein the NIO further includes, a refractive member located around a LED optical axis having a first end that collects light from the LED and a second end opposite the first end to transmit light; a total internal reflection (TIR) member located around the refractive member, wherein the TIR member has a first end to collect light and a second end opposite the first end to transmit light, and a wall formed therebetween wherein an outside surface of the wall is curved to reflect light through the second end of the refractive member with a precalculated divergence that does not exceed a maximum angle; wherein the refractive member and the TIR member are integrated into a single transparent element having a mutual focal point, wherein the optical module further comprises a plurality of LEDs, wherein the NIO element compresses light into a required pattern only in a vertical plane, wherein the optical module provides a sectorial pattern in a horizontal plane; and wherein the NIO element is shaped as a hollow circle sector in a horizontal cross-section and the plurality of LEDs are connected to an inner side of the sector on an arc concentric to the hollow circle at a distance equal to the focal length of the NIO element from the first end of the refractive member, and the LED axes are coincident with the hollow circle radii. 14. A portable luminaire 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 required pattern with a generally different angular distribution in a horizontal plane and a vertical plane, and to direct the compressed light outside of the luminaire; a transparent window to transmit light outside of the luminaire; an autonomous rechargeable power source wherein the power source includes a connector to connect to an outside charger; a housing having a leveling mechanism and an aiming indicator; an installation hardware system attachable to the housing; and wherein the optical module further comprises a plurality of LEDs and the NIO element compresses light into a required pattern only in the vertical plane, the NIO element is shaped as a hollow circle sector in a horizontal cross-section and the multiple LEDs are connected to an inner side of the sector on an arc concentric to the hollow circle at a distance equal to the focal length of the NIO element from an input end of the refractive member, and the LED axes are coincident with the hollow circle radii. 15. The portable luminaire according to claim 14, wherein the luminaire provides an omnidirectional pattern in the horizontal plane. 16. The portable luminaire according to claim 15, wherein the NIO element is shaped as a full hollow circle in the horizontal cross-section and multiple LEDs connected to the concentric circle inside the NIO element at a distance equal to the NIO element focal length from the input end of the refractive member. 17. A portable luminaire comprising: an optical module including: a plurality of light emitting diodes (LEDs) that emit 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 LEDs with wide divergence located at the focal point, to compress the collected light with high efficiency into a required pattern with a generally different angular distribution in a horizontal plane and a vertical plane, and to direct the compressed light outside of the luminaire; a transparent window to transmit light outside of the luminaire; an autonomous rechargeable power source wherein the power source includes a connector to connect to an outside charger; and a housing having a leveling mechanism and an aiming indicator. 18. The portable luminaire according to claim 17, further comprising an installation hardware system attachable to the housing. 19. The portable luminaire according to claim 18, wherein the NIO element is shaped as a hollow circle sector in a horizontal cross-section and the multiple LEDs are connected to an inner side of the sector on an arc concentric to the hollow circle at a distance equal to the focal length of the NIO element from an input end of the refractive member, and the LED axes are coincident with the hollow circle radii. 20. The optical module according to claim 19, wherein the luminaire provides an omnidirectional pattern in the horizontal plane. 21. The optical module according to claim 20, wherein the NIO element is shaped as a full hollow circle in the horizontal cross-section and the multiple LEDs are connected to the concentric circle inside the NIO element at a distance equal to the NIO element focal length from the input end of the refractive member.