Patent application number | Description | Published |
20080259589 | LIGHTING DEVICES, METHODS OF LIGHTING, LIGHT FILTERS AND METHODS OF FILTERING LIGHT - A lighting device comprising a white light source, a filter which filters blue light from the white light, and a second light source which emits red light and/or reddish-orange light. In some embodiments, the white light source comprises a solid state light emitter. A method of lighting, comprising illuminating a white light source, illuminating a red and/or reddish-orange light source, the light sources being positioned and oriented such that the light mixes, and filtering blue light from the mixed light. A method of lighting, comprising illuminating a white light source, filtering blue light from the white light, and illuminating a red and/or reddish-orange light source. A light filter, comprising a first filter component which has a wall region and a window region, and a second filter component comprising two or more reflection regions. Also, methods of filtering. | 10-23-2008 |
20100140634 | SOLID STATE EMITTER PACKAGE INCLUDING RED AND BLUE EMITTERS - A solid state emitter package includes a principally red solid state emitter having peak emissions within 590 nm to 680 nm, a principally blue solid state emitter having peak emissions within 400 nm to 480 nm, and at least one of a common leadframe, common substrate, and common reflector, with the package being devoid of any principally green solid state emitters having peak emissions between 510 nm and 575 nm. A solid state emitter package may include at least one electrically conductive path associated with the solid state emitter package that is not in electrical communication with any solid state emitter of the solid state emitter package, with such electrically conductive path being susceptible to inclusion of a jumper or a control element. | 06-10-2010 |
20110006658 | SOLID STATE LIGHTING DEVICE WITH IMPROVED HEATSINK - A solid state lighting device includes at least one emitter and a forged heatsink arranged to receive and dissipate heat generated by emitter(s). The heatsink may have a thickness and/or profile that varies in at leats two dimensions. Fabrication of a solid state lighting device may include providing a forged heatsink, and mounting at least one solid state emitter in thermal communication with the heatsink. A space or object may be illuminated with a lighting device including at least one solid state emitter and a forged heatsink. The lighting device may be operated responsive to at least one sensor arranged to sense temperature and/or at least one characteric of light emitted by the emitter(s). | 01-13-2011 |
20110019399 | LIGHTING DEVICE AND LIGHTING METHOD - A lighting device comprising first and second groups of solid state light emitters, which emit light having peak wavelength in ranges of from 430 nm to 480 nm, and first and second groups of lumiphors which emit light having dominant wavelength in the range of from 555 nm to 585 nm. In some embodiments, if current is supplied to a power line, a combination of (1) light exiting the lighting device which was emitted by the first group of emitters, and (2) light exiting the lighting device which was emitted by the first group of lumiphors would have a correlated color temperature which differs by at least 50 K from a correlated color temperature which would be emitted by a combination of (3) light exiting the lighting device which was emitted by the second group of emitters, and (4) light exiting the lighting device which was emitted by the second group of lumiphors. | 01-27-2011 |
20110068698 | LIGHTING DEVICE WITH DEFINED SPECTRAL POWER DISTRIBUTION - Solid state lighting devices and illumination methods involve use of multiple solid state emitters of different colored outputs (optionally including at least one white or near-white emitter). Operation of the solid state emitters is controlled with at least one circuit element to emphasize and/or deemphasize perception of at least one color of a target surface based upon a reflectance spectral distribution of the target surface. At least one emitter may have an associated passive or active filter; the filterable emitter and/or active filter may be operated to deemphasize perception of at least one color of a target surface. Activation and/or alteration of emphasis or deemphasis of perception of color of a target surface may be selected by a user or automatically controlled. | 03-24-2011 |
20110074270 | LIGHTING DEVICE HAVING HEAT DISSIPATION ELEMENT - A lighting device comprising a light source and at a heat dissipation element comprising at least first and second substantially transparent regions and at least a first fluid, at least a portion of the first fluid being positioned in a space between the transparent regions. Also, a lighting device comprising a light source, an enclosed space through which light passes and a fluid in the space. Also, a lighting device comprising a light source and heat conducting means for dissipating heat. Also, a lighting device comprising a light source and a heat dissipation element comprising first and second substantially transparent regions coupled with a space and a fluid in the space. Also, a lighting device comprising a light source and a heat dissipation element comprising a heat pipe that comprises a substantially transparent region. | 03-31-2011 |
20110075423 | LIGHTING DEVICE WITH POSITION-RETAINING ELEMENT - A lighting device comprising a first element that comprises an electrical connector, a second element that comprises at least a first light source, and a position-retaining element (or means) that holds the second element in any of at least two positions relative to the first element. Also, a lighting device comprising a first element that comprises an electrical connector, a second element that comprises at least a first trim element, and a position-retaining element (or means) that holds the second element in any of at least two positions relative to the first element. The electrical connector is electrically connected to at least a first light source, and the second element is movable relative to the first element among the positions while maintaining electrical connection between the electrical connector and at least the first light source. | 03-31-2011 |
20110133223 | SOLID STATE EMITTER PACKAGES - A solid state emitter package may include at least one electrically conductive path associated with the solid state emitter package that is not in electrical communication with any solid state emitter of the solid state emitter package, with such electrically conductive path being susceptible to inclusion of a jumper or a control element. A solid state emitter package includes a principally red solid state emitter having peak emissions within 590 nm to 680 nm, a principally blue solid state emitter having peak emissions within 400 nm to 480 nm, and at least one of a common leadframe, common substrate, and common reflector, with the package being devoid of any principally green solid state emitters having peak emissions between 510 nm and 575 nm. | 06-09-2011 |
20110221330 | HIGH CRI LIGHTING DEVICE WITH ADDED LONG-WAVELENGTH BLUE COLOR - Solid state lighting devcies include least one solid state emitter and multiple lumiphors, arranged to output aggregated emissions comprising at least one short wavelength blue peak, at least one long wavelength blue (LWB) peak, at least one yellow and/or green peak, and at least one red and/or orange peak. Presence of long wavelength blue enhances color rendering. At least one solid state emitter may include a short wavelength blue LED, LWB LED, and/or UV LED. Multiple emitters may be provided. Resulting devices may provide CRI greater than 85, efficiency of greater than 50 lm/watt, and color stability in a range of Δu′v′≦0.008 over a temperature change of 75° C. | 09-15-2011 |
20110222277 | HIGH CRI LIGHTING DEVICE WITH ADDED LONG-WAVELENGTH BLUE COLOR - Solid state lighting devices include least one solid state emitter and multiple lumiphors, arranged to output aggregated emissions comprising at least one short wavelength blue peak, at least one long wavelength blue (LWB) peak, at least one yellow and/or green peak, and at least one red and/or orange peak. Presence of long wavelength blue enhances color rendering. At least one solid state emitter may include a short wavelength blue LED, LWB LED, and/or UV LED. Multiple emitters may be provided. Resulting devices may provide CRI greater than 85, efficiency of greater than 50 lm/watt, and color stability in a range of Δu′v′≦0.008 over a temperature change of 75° C. | 09-15-2011 |
20110267812 | SOLID STATE LIGHTING DEVICE, AND METHOD OF ASSEMBLING THE SAME - A lighting device comprising a light emitter positioning element and first and second solid state light emitters positioned on the first light emitter positioning element, at least a first portion of the first light emitter positioning element of a spiral shape. Also, a lighting device comprising first and second solid state light emitters and means for dissipating heat from them. Also, a method of assembling a lighting device, comprising positioning a first light emitter positioning element that comprises a ledge, so that at least a part of it is in contact with a support structure, at least first and second solid state light emitters being on the positioning element, and pressing the positioning element to bring it into contact with the ledge. | 11-03-2011 |
20110267821 | LIGHTING DEVICE WITH HEAT DISSIPATION ELEMENTS - A lighting device, comprising a solid state light emitter and first and second heat dissipation elements. In some devices, (1) the first heat dissipation element is in the path of at least some of the light emitted, (2) at least half of the 25% of the surface area of a first heat dissipation element that is closest to the first solid state light emitter is exposed, (3) at least part of a heat dissipation element is transparent or reflective, and a portion light from the light emitter goes in a specified range of directions, (4) angular size of gaps between heat dissipation elements are limited, and/or (5) at least 25% of heat generated by the light emitter(s) is dissipated in regions toward which light emitted by light emitter(s) is directed. Also, a lighting device comprising a solid state light emitter and means for dissipating heat. | 11-03-2011 |
20110298350 | LIGHTING DEVICE WITH REVERSE TAPERED HEATSINK - A solid state lighting devices includes a heatsink having a first end arranged proximate to a base end, and a second end arranged between the first end and a solid state emitter, wherein at least a portion of the heatsink is wider at point intermediate the first end and the second end than the width of the heatsink at the second end. Such reverse angled heatsink reduces obstruction of light. A heatsink may include multiple fins and a heatpipe. | 12-08-2011 |
20110298355 | LIGHTING DEVICES WITH DIFFERENTIAL LIGHT TRANSMISSION REGIONS - A LED lamp including a cover with first and second transmissive regions that differently affect light emissions (e.g., with respect to diffusion, color, or other characteristics) transmitted therethrough. One or more apertures may be defined in a diffusive cover for a LED lamp to permit flow of air and escape of heat, and also to permit escape of directly emitted or reverse scattered light proximate to a base of the LED lamp. Multiple diffuser segments may be overlapped with intervening apertures. | 12-08-2011 |
20110310602 | LIGHTING DEVICE AND LIGHTING METHOD - There is provided a lighting device comprising one or more groups of solid state light emitters and one or more groups of lumiphors, which emits mixed illumination having x, y color coordinates within a region defined by (0.32, 0.40), (0.36, 0.38), (0.41, 0.455), and (0.36, 0.48). Also, such lighting devices which emit light having x, y color coordinates within other specified regions. Also, such lighting devices with respective groups which emit light within two specified regions, and which mix to produce light within such regions. Also, methods of lighting light from such emitters and/or lumiphors. | 12-22-2011 |
20120018751 | LIGHTING DEVICE - A first lighting device comprises at least one plural cavity element and a plurality of solid state light emitters. A second lighting device comprises at least one plural cavity element, a plurality of solid state light emitters and at least one encapsulant region, at least a portion of the plural cavity element being surrounded by the encapsulant region. Each plural cavity element has at least two optical cavities. Each optical cavity comprises a concave region in the plural cavity element. At least one solid state light emitter is present in each of at least two of the optical cavities. | 01-26-2012 |
20120087137 | LED PACKAGE MOUNT - A light emitting diode package mounting apparatus comprises a heatsink defining a surface comprising one of a male or female connector. An LED package has a base where a portion of the base defines the other of the female or male connector. The connectors engage one another such that a force is exerted on the base that presses the LED package against the surface. To assemble the LED package in the heat sink, the LED package is located on the surface. The LED package and heatsink are moved relative to one another such that the male connector is inserted into the female connector. | 04-12-2012 |
20120112661 | LIGHTING DEVICE WITH MULTIPLE EMITTERS AND REMOTE LUMIPHOR - A lighting device including a plurality of electrically activated emitters having different peak wavelengths, at least one remote lumiphor arranged to receive at least some emissions from one of the emitters, and a primary electrically activated emitter spatially segregated and/or thermally insulated from a secondary electrically activated emitter. A lighting device including a plurality of electrically activated emitters spatially segregated from one another having different peak wavelengths, at least one lumiphor spatially segregated from one of the emitters, and a control device independently connected to each emitter or group of emitters. A method of producing a lighting device including a plurality of independently controllable electrically activated emitters. | 05-10-2012 |
20120146503 | LINEAR LED LAMP - A linear LED lamp is disclosed. Embodiments of the invention can provide an LED-based replacement lamp for a linear or “tube-type” bulb or a bulb with a linear filament or element. By filling the void within the lamp with an optically transmissive fluid to cool the LEDs without the use of a traditional heat sink, the light blocking effects of such a heat sink can be avoided. Thus, the LED replacement lamp can emit light in a substantially omnidirectional pattern. In some embodiments, the optically transmissive fluid medium is a liquid. In some embodiments, the optically transmissive fluid medium is a gel. An index matching medium can be used as the optically transmissive fluid medium. A color mixing treatment can optionally be included to eliminate color tints in cases where multiple LEDs of different colors are used to produce white light. | 06-14-2012 |
20120161626 | LED LAMP WITH HIGH COLOR RENDERING INDEX - An LED lamp with a high color rendering index (CRI) is disclosed. Example embodiments of the invention provide an LED lamp with a relatively high color rendering index (CRI). In some embodiments, the lamp has other advantageous characteristics, such as good angular uniformity. In some embodiments, the LED lamp is sized and shaped as a replacement for a standard incandescent bulb, and includes an LED assembly with at least first and second LEDs operable to emit light of two different colors. In some embodiments, the lamp can emit light with a color rendering index (CRI) of at least 90 without remote wavelength conversion. In some embodiments, the LED lamp conforms some, most, or all of the product requirements for a 60-watt incandescent replacement for the L prize. | 06-28-2012 |
20120201022 | SOLID STATE LIGHTING DEVICE WITH ELONGATED HEATSINK - Solid state lighting devices include elongated heatsinks with multiple raised features each including a major surface non-parallel to a longitudinal direction of the heatsink. A device-scale heatsink including raised features may include at least a portion of a threaded rod or tube, with threads thereof forming the raised features. Raised features may also be formed by stamped and bent emitter support elements arranged to support solid state light emitters, with the emitter support elements inserted into recesses of an elongated heatsink body. | 08-09-2012 |
20120201024 | LIGHTING DEVICE WITH FLEXIBLY COUPLED HEATSINKS - Lighting devices include multiple heatsink elements arranged to dissipate heat generated by the multiple solid state emitters, with non-rigid coupling between heatsink elements. At least a portion of each heatsink element is preferably exposed to an ambient environment. Each heatsink element may include a switching element, may be addressable, and may receive wired or wireless control signals. A modular solid state lighting unit includes a heatsink and at least one solid state light emitter, with at least one flexible element secured to the heatsink element and to multiple electrical couplings. Flexible rope lights and two-dimensional arrays of emitters are provided. | 08-09-2012 |
20120280267 | LIGHTING DEVICE WITH REVERSE TAPERED HEATSINK - A solid state lighting devices includes a heatsink having a first end arranged proximate to a base end, and a second end arranged between the first end and a solid state emitter, wherein at least a portion of the heatsink is wider at point intermediate the first end and the second end than the width of the heatsink at the second end. Such reverse angled heatsink reduces obstruction of light. A heatsink may include multiple fins and a heatpipe. | 11-08-2012 |
20120306370 | LIGHTING DEVICES WITH INDIVIDUALLY COMPENSATING MULTI-COLOR CLUSTERS - A lighting device includes multiple solid state emitter (e.g., LED) chips of different colors mounted on a single submount, at least one temperature sensing element arranged to sense temperature of the LED chips, and at least one temperature compensation circuit element mounted on the single submount to maintain output emissions at a substantially constant color point over a range of different temperatures. Such a device may include a blue LED arranged to stimulate a yellow lumiphor and a red LED, arranged in combination to yield warm white light. Multiple separately temperature compensated clusters of solid state emitters may be provided in a single lighting device, which may include an elongated body structure. | 12-06-2012 |
20130016509 | LED LAMPAANM Van de Ven; Antony PaulAACI Hong KongAACO CNAAGP Van de Ven; Antony Paul Hong Kong CN - A lamp comprises an LED assembly comprising at least a first LED operable to emit light at least of a first color, and at least a second LED operable to emit light at least of a second color. An enclosure is configured so that the light emitted from the first LED is mixed with the light emitted from the second LED in the enclosure. The enclosure has an internal reflector wall. The light is emitted from the lamp through a diffuser lens. A trim piece may be secured to the lamp where the trim piece may be formed at least partially of a thermally conductive material. A method of making an LED lamp comprises providing at least a first LED operable to emit light of a first color and at least a second LED operable to emit light of a second color is also provided. | 01-17-2013 |
20130170199 | LED LIGHTING USING SPECTRAL NOTCHING - LED lighting using optical elements with spectral notching is disclosed. Embodiments of the invention provide an optical element and LED devices and systems using such an optical element, where spectral notch filtering introduced by the optical element improves the color rendering index (CRI) of emitted light. In some embodiments of the invention, the optical element is made to act as a notch filter by including a rare earth compound such as neodymium oxide in or on the material of which the optical element is made. A color pigment can also be used to impart notch-filtering properties to an optical element. An optical interference film can also be used. The optical element may be included in an LED device such as a multichip component or may be used as an enclosure or reflector for an LED lighting system such as a lamp or fixture. | 07-04-2013 |
20130257260 | LIGHTING DEVICE WITH REVERSE TAPERED HEATSINK - A solid state lighting devices includes a heatsink having a first end arranged proximate to a base end, and a second end arranged between the first end and a solid state emitter, wherein at least a portion of the heatsink is wider at point intermediate the first end and the second end than the width of the heatsink at the second end. Such reverse angled heatsink reduces obstruction of light. A heatsink may include multiple fins and a heatpipe. | 10-03-2013 |
20130265753 | LIGHTING DEVICE AND LIGHTING METHOD - There is provided a lighting device which emits light with an efficacy of at least 60 lumens per watt. The lighting device comprises at least one solid state light emitter, e.g., one or more light emitting diodes, and optionally further includes one or more lumiphor. In some embodiments, the output light is of a brightness of at least 300 lumens. In some embodiments, the output light has a CRI Ra of at least 90. Also, a method of lighting, comprising supplying electricity to a lighting device which emits light with an efficacy of at least 60 lumens per watt. | 10-10-2013 |
20130271981 | LED LAMP - A lamp has an optically transmissive enclosure and a base. A tower extends from the base into the enclosure and supports an LED assembly in the enclosure. The LED assembly comprises a plurality of LEDs operable to emit light when energized through an electrical path from the base. The tower and the LED assembly are arranged such that the plurality of LEDs are disposed about the periphery of the tower in a band and face outwardly toward the enclosure to create a source of the light that appears as a glowing filament. The tower forms part of a heat sink that transmits heat from the LED assembly to the ambient environment. The LED assembly has a three-dimensional shape. An electrical interconnect connects a conductor to the heat sink where the conductor is in the electrical path between the LED assembly and the base. | 10-17-2013 |
20130271989 | GAS COOLED LED LAMP - In one embodiment, a lamp comprises an optically transmissive enclosure. An LED array is disposed in the optically transmissive enclosure operable to emit light when energized through an electrical connection. A gas is contained in the enclosure to provide thermal coupling to the LED array. The gas may include oxygen. | 10-17-2013 |
20130271990 | GAS COOLED LED LAMP - In one embodiment, a lamp comprises an optically transmissive enclosure. An LED array is disposed in the optically transmissive enclosure operable to emit light when energized through an electrical connection. A gas is contained in the enclosure to provide thermal coupling to the LED array. The gas may include oxygen. | 10-17-2013 |
20130271991 | LED LAMP - A lamp has an optically transmissive enclosure and a base. A tower extends from the base into the enclosure and supports an LED assembly in the enclosure. The LED assembly comprises a plurality of LEDs operable to emit light when energized through an electrical path from the base. The tower and the LED assembly are arranged such that the plurality of LEDs are disposed about the periphery of the tower in a band and face outwardly toward the enclosure to create a source of the light that appears as a glowing filament. The tower forms part of a heat sink that transmits heat from the LED assembly to the ambient environment. The LED assembly has a three-dimensional shape. An electrical interconnect connects a conductor to the heat sink where the conductor is in the electrical path between the LED assembly and the base. | 10-17-2013 |
20130279175 | LED LAMP - A lamp has an optically transmissive enclosure and a base defining a longitudinal axis of the lamp that extends from the base to the free end of the enclosure. An LED assembly is positioned in the optically transmissive enclosure. The LED assembly includes LEDs operable to emit light when energized through an electrical path from the base. The LED assembly is arranged such that the plurality of LEDs face perpendicularly to the longitudinal axis of the lamp. The emission profile of the LEDs being at least 120 degrees FWHM. | 10-24-2013 |
20130294092 | LED LAMP - A lamp has an optically transmissive enclosure and a base defining a longitudinal axis of the lamp extending from the base to the free end of the enclosure. A heat sink is at least partially located in the enclosure and includes a tower that extends along the longitudinal axis of the lamp. An LED assembly is positioned in the optically transmissive enclosure. The LED assembly comprises a lead frame circuit or a flex circuit where LEDs are attached to the circuits. The lead frame and flex circuit are formed into a three-dimensional shape and are thermally coupled to the tower. | 11-07-2013 |
20130301252 | GAS COOLED LED LAMP - In one embodiment, a lamp comprises an optically transmissive enclosure. An LED array is disposed in the optically transmissive enclosure operable to emit light when energized through an electrical connection. A gas is contained in the enclosure to provide thermal coupling to the LED array. A board supports lamp electronics for the lamp and is located in the enclosure. The LED array is mounted to the board and LEDs are mounted on a submount formed to have a three dimensional shape. The board is electrically coupled to the LED array and the submount may be thermally coupled to the gas for dissipating heat from the plurality of LEDs. | 11-14-2013 |
20140036497 | LED LAMP - A lamp comprises an enclosure comprising a reflector and a lens where the reflector is made of thermally conductive material. A base is coupled to the enclosure. An LED is located in the enclosure and emits light when energized through an electrical path from the base. A heat sink comprises a heat dissipating portion that may be at least partially exposed to the ambient environment and a heat conducting portion that is thermally coupled to the LED. The reflector is thermally coupled to the heat sink and is exposed to the exterior of the lamp such that heat from the heat sink may be dissipated to the ambient environment at least partially through the reflector. | 02-06-2014 |
20140043804 | LINEAR LED LAMP - A linear LED lamp is disclosed. Embodiments of the invention can provide an LED-based replacement lamp for a linear or “tube-type” bulb or a bulb with a linear filament or element. By filling the void within the lamp with an optically transmissive fluid to cool the LEDs without the use of a traditional heat sink, the light blocking effects of such a heat sink can be avoided. Thus, the LED replacement lamp can emit light in a substantially omnidirectional pattern. In some embodiments, the optically transmissive fluid medium is a liquid. In some embodiments, the optically transmissive fluid medium is a gel. An index matching medium can be used as the optically transmissive fluid medium. A color mixing treatment can optionally be included to eliminate color tints in cases where multiple LEDs of different colors are used to produce white light. | 02-13-2014 |
20140239794 | GAS COOLED LED LAMP - In one embodiment, a lamp comprises an optically transmissive enclosure. An LED array is disposed in the optically transmissive enclosure operable to emit light when energized through an electrical connection. A gas is contained in the enclosure to provide thermal coupling to the LED array. The gas may include oxygen. | 08-28-2014 |