Patent application number | Description | Published |
20120261703 | Self-cooling solid-state emitters - A self-cooling emitter is a light emitting element embedded within a thermally conductive luminescent element which functions as a thermal cooling means and wavelength conversion of the light emitting element. The thermally conductive luminescent element exhibits a bulk thermal conductivity greater than | 10-18-2012 |
20130099264 | SOLID STATE LIGHT SOURCES BASED ON THERMALLY CONDUCTIVE LUMINESCENT ELEMENTS CONTAINING INTERCONNECTS - Solid state light sources based on LEDs mounted on or within thermally conductive luminescent elements provide both convective and radiative cooling. Low cost self-cooling solid state light sources can integrate the electrical interconnect of the LEDs and other semiconductor devices. The thermally conductive luminescent element can completely or partially eliminate the need for any additional heatsinking means by efficiently transferring and spreading out the heat generated in LED and luminescent element itself over an area sufficiently large enough such that convective and radiative means can be used to cool the device. | 04-25-2013 |
20140042467 | SOLID STATE LIGHT SOURCES WITH COMMON LUMINESCENT AND HEAT DISSIPATING SURFACES - A solid state light source with LEDs in thermal contact to thermally conductive translucent elements where light emitted from the LEDs is directed to emerge from the heat dissipating surfaces of the elements. The thermally conductive translucent elements are arranged or combined with a reflector to form a light recycling cavity. The outside surfaces of the thermally conductive translucent elements forming the cavity become luminescent as the light emitted by the LEDs on the inside of the cavity is continually reflected and recycled until a very high percentage of the light emitted by the LEDs is eventually transmitted through and emitted uniformly and omnidirectionally. Simultaneously, the heat from the LEDs conducts through and to the luminescent outside surfaces of the elements of the cavity, which radiatively and convectively cool the light source thereby eliminating the need for bulky appended heat sinks. | 02-13-2014 |
20140061707 | SOLID STATE LIGHT SOURCES BASED ON THERMALLY CONDUCTIVE LUMINESCENT ELEMENTS CONTAINING INTERCONNECTS - Solid state light sources based on LEDs mounted on or within thermally conductive luminescent elements provide both convective and radiative cooling. Low cost self-cooling solid state light sources can integrate the electrical interconnect of the LEDs and other semiconductor devices. The thermally conductive luminescent element can completely or partially eliminate the need for any additional heatsinking means by efficiently transferring and spreading out the heat generated in LED and luminescent element itself over an area sufficiently large enough such that convective and radiative means can be used to cool the device. | 03-06-2014 |
20140264359 | Lightweight self-cooling light sources - A solid-state light source has light emitting diodes embedded in a thermally conductive translucent luminescent element. The thermally conductive translucent luminescent element has optically translucent thermal filler and at least one luminescent element in a matrix material. A leadframe is electrically connected to the light emitting diodes. The leadframe distributes heat from the light emitting diodes to the thermally conductive translucent luminescent element. The thermally conductive translucent luminescent element distributes heat from light emitting diodes and the thermally conductive translucent luminescent element. | 09-18-2014 |
20140265810 | Solid-state light source using passive phase change cooling - A solid-state light source with light emitting diodes embedded in thermally conductive luminescent elements is cooled by immersion cooling via a phase change material (liquid or pool boiling). The thermally conductive translucent luminescent elements are arranged to confine the boiling to an inner tube with the condensed liquid on the output faces so as to provide a flicker free 360 degree output light source. At least one face of each LED is exposed directly to the fluid and the LED is unconstrained so as to provide optical emission with little to no wavelength shift as a function of drive current. | 09-18-2014 |
20140268698 | Self cooling, magnetically connected fixtures for large area directional and isotropic solid state lighting panels - Reflector designs for a large area panel light source create induced draft cooling means adjacent to the panel light source. The panel light source has a wavelength conversion element on a solid-state light source for emitting light of a first and second wavelength to form a broader emission spectrum of light from the panel light source. Magnetic elements make electrical connection between the fixture contacts and the light source contacts on the panel light source for a light fixture. | 09-18-2014 |
20140299902 | Articles and methods for rapid manufacturing of solid state light sources - Rapid manufacturing processes and designs based on solid luminescent elements form solid state light sources. Direct attach, as well as other LED types, are embedded or affixed to the solid luminescent elements to form low cost solid state light sources. | 10-09-2014 |
20140362563 | Fixtures for large area directional and isotropic solid state lighting panels - Reflector designs for a large area panel light source create induced draft cooling means adjacent to the panel light source. The panel light source has a wavelength conversion element on a solid state light source for emitting light of a first and second wavelength to form a broader emission spectrum of light from the panel light source. | 12-11-2014 |
20140367703 | SOLID STATE LIGHT SOURCES BASED ON THERMALLY CONDUCTIVE LUMINESCENT ELEMENTS CONTAINING INTERCONNECTS - Solid state light sources based on LEDs mounted on or within thermally conductive luminescent elements provide both convective and radiative cooling. Low cost self-cooling solid state light sources can integrate the electrical interconnect of the LEDs and other semiconductor devices. The thermally conductive luminescent element can completely or partially eliminate the need for any additional heatsinking means by efficiently transferring and spreading out the heat generated in LED and luminescent element itself over an area sufficiently large enough such that convective and radiative means can be used to cool the device. | 12-18-2014 |
20140369030 | SOLID STATE LIGHT SOURCES WITH COMMON LUMINESCENT AND HEAT DISSIPATING SURFACES - A solid-state light source with LEDs contained in a light recycling cavity emits both light and heat from heat extracting light emitting elements which form the light recycling cavity. Eliminating appended heat sinks makes these light sources ultra lightweight. The light sources can be attached and supported by suspended ceilings without affecting the seismic properties of the ceiling. The heat extracting light emitting elements are combined with a reflector to make directional light sources, which can be attached to ceilings with small magnets. Because the heat extracting light emitting elements transfer the heat from the light source to the illuminated area there is no requirement for disturbing or penetrating the ceiling barrier to a heat sink on the plenum side of the ceiling. This enables a contiguous acoustic ceiling. Further, the light sources are made from non flammable materials and therefore do not affect the fire rating of the ceiling. | 12-18-2014 |
20140369031 | SOLID STATE LIGHT SOURCES WITH COMMON LUMINESCENT AND HEAT DISSIPATING SURFACES - A solid-state light source with LEDs contained in a light recycling cavity emits both light and heat from heat extracting light emitting elements which form the light recycling cavity. Eliminating appended heat sinks makes these light sources ultra lightweight. The light sources can be attached and supported by suspended ceilings without affecting the seismic properties of the ceiling. The heat extracting light emitting elements are combined with a reflector to make directional light sources, which can be attached to ceilings with small magnets. Because the heat extracting light emitting elements transfer the heat from the light source to the illuminated area there is no requirement for disturbing or penetrating the ceiling barrier to a heat sink on the plenum side of the ceiling. This enables a contiguous acoustic ceiling. Further, the light sources are made from non flammable materials and therefore do not affect the fire rating of the ceiling. | 12-18-2014 |
20150023023 | LIGHTING SYSTEMS WITH HEAT EXTRACTING LIGHT EMITTING ELEMENTS - Lighting systems with heat extracting light emitting elements are disclosed based on the light emitting surface also functioning as the heat cooling surface. Lighting systems which have only their light emitting surfaces exposed to ambient are disclosed. A thermally conductive mostly reflective light transmitting element provides light diffusion, interconnect, and forms a light recycling cavity providing very low profile and lightweight solid state light sources. These properties make these light sources very useful in applications such as aircraft, rescue, temporary illumination, and automotive where weight directly impacts cost and utility. The integration of drivers and other electrical functions onto the heat extracting light emitting elements is also disclosed. | 01-22-2015 |