Abstract: A luminaire accessory is provided. A first louver part (16) has a plurality of cells (18) arranged in a predetermined pattern and has at least one set of alignment features. A second louver part (16?), unassembled is identical to the first louver part (16). When assembled, the second louver part (16?) is rotated 180° with respect to the first louver part (16) and the alignment features (20) are configured to mate to a second set of alignment features (20?) disposed on the second louver part (16?).

Abstract: A lighting network includes a lighting network base station and one or more contactless lighting network components. The lighting network base station includes: a radio frequency (RF) amplifier which supplies an RF power signal to a lighting network line pair; and a first power line communication coupler which couples the lighting network line pair to a first power line communication device. The contactless lighting network component extracts electrical power from the RF power signal on the lighting network line pair, and couples the lighting network line pair to a second power line communication device. The first and second power line communication devices communicate network data via the lighting network line pair. The contactless lighting network component may include a lighting fixture (e.g., including one or more LED light sources), a sensor, and/or a lighting network interface adaptor.

Abstract: A luminaire accessory is provided. A first louver part (16) has a plurality of cells (18) arranged in a predetermined pattern and has at least one set of alignment features. A second louver part (16?), unassembled is identical to the first louver part (16). When assembled, the second louver part (16?) is rotated 180° with respect to the first louver part (16) and the alignment features (20) are configured to mate to a second set of alignment features (20?) disposed on the second louver part (16?).

Abstract: Transformers (1) comprise primary parts and secondary parts with first and second taps (11, 12) for providing feeding signals to combinations of switching circuits (22, 26) and loads (21) and with third and fourth taps (13, 14) for providing data signals to receivers (23). At least one of the third and fourth taps (13, 14) is different from the first and second taps (11, 12). In that case, the data signals will be better available, even in case the first and second taps (11, 12) are short-circuited. The primary parts may comprise primary windings (15), the secondary parts may comprise secondary windings (16). The first to fourth taps (11-14) may be taps of the secondary windings (16). The first and third taps (11, 13) may be identical taps, and the second and fourth taps (12, 14) may be different taps. The first and second taps (11, 12) may be outer taps and the fourth taps may be center taps.

Abstract: A lighting network includes a lighting network base station and one or more contactless lighting network components. The lighting network base station includes: a radio frequency (RF) amplifier which supplies an RF power signal to a lighting network line pair; and a first power line communication coupler which couples the lighting network line pair to a first power line communication device. The contactless lighting network component extracts electrical power from the RF power signal on the lighting network line pair, and couples the lighting network line pair to a second power line communication device. The first and second power line communication devices communicate network data via the lighting network line pair. The contactless lighting network component may include a lighting fixture (e.g., including one or more LED light sources), a sensor, and/or a lighting network interface adaptor.

Abstract: Methods and apparatus are provided for producing mixed light in a direct-view luminaire. The luminaire includes a plurality of light sources (132) that, in combination, are configured to generate a plurality of different colors of light, a first light mixing chamber (110) and at least one second light mixing chamber (120) in light communication with the first mixing chamber through at least one opening (134). At least one directly viewable light exit surface (112) is coupled to the first light mixing chamber. The light sources are contained in the second light mixing chamber(s), which is configured to prevent light emitted from the light sources from directly impinging on the light exit surface(s). The first light mixing chamber and the light exit surface(s) are configured to mix the light emitted from the light sources such that all light exiting the light exit surface(s) is substantially uniform in brightness and color.

Abstract: Transformers (1) comprise primary parts and secondary parts with first and second taps (11, 12) for providing feeding signals to combinations of switching circuits (22, 26) and loads (21) and with third and fourth taps (13, 14) for providing data signals to receivers (23). At least one of the third and fourth taps (13, 14) is different from the first and second taps (11, 12). In that case, the data signals will be better available, even in case the first and second taps (11, 12) are short-circuited. The primary parts may comprise primary windings (15), the secondary parts may comprise secondary windings (16). The first to fourth taps (11-14) may be taps of the secondary windings(16).The first and third taps (11, 13) may be identical taps, and the second and fourth taps (12, 14) may be different taps. The first and second taps (11, 12) may be outer taps and the fourth taps may be center taps.

Abstract: Methods and apparatus related to an LED-based lighting unit (10, 110) having an optical component for mixing light output from a plurality of LEDs (34, 134). In some embodiments the optical component may include at least one reflective surface interiorly thereof and the LEDs (34, 134) may be vertically arranged about the reflective surface. At least some of the LEDs (34, 34) may generate a light output generally directed toward the reflective surface. The reflective surface may be configured to direct at least some of the light output directly incident thereon through a light output opening (25, 125) of the optical component.

Abstract: Lighting apparatus and methods employing LED light sources are described. The LED light sources are integrated with other components in the form of a luminaire or other general purpose lighting structure. Some of the lighting structures are formed as Parabolic Aluminum Reflector (PAR) luminaires, allowing them to be inserted into conventional sockets. The lighting structures display beneficial operating characteristics, such as efficient operation, high thermal dissipation, high output, and good color mixing.

Abstract: A method and system for data usage accounting are described herein. As an example, the method can be practiced in a setting that includes both secure applications and unsecure applications. Via one of the secure applications, a request to access data can be received in which the request is intended for a content provider via a system service. The request that is intended for the content provider via the system service can be intercepted and modified, which can cause the system service to direct the request back to the secure application instead of the content provider. In addition, a connection can be established with the content provider for the request through the secure application to enable data usage accounting of data that is returned by the content provider.

Abstract: A method and system for data usage accounting are described herein. As an example, the method can be practiced in a setting that includes both secure applications and unsecure applications. Via one of the secure applications, a request to access data can be received in which the request is intended for a content provider via a system service. The request that is intended for the content provider via the system service can be intercepted and modified, which can cause the system service to direct the request back to the secure application instead of the content provider. In addition, a connection can be established with the content provider for the request through the secure application to enable data usage accounting of data that is returned by the content provider.

Abstract: Methods and apparatus are provided for producing mixed light in a direct-view luminaire. The luminaire includes a plurality of light sources (132) that, in combination, are configured to generate a plurality of different colors of light, a first light mixing chamber (110) and at least one second light mixing chamber (120) in light communication with the first mixing chamber through at least one opening (134). At least one directly viewable light exit surface (112) is coupled to the first light mixing chamber. The light sources are contained in the second light mixing chamber(s), which is configured to prevent light emitted from the light sources from directly impinging on the light exit surface(s). The first light mixing chamber and the light exit surface(s) are configured to mix the light emitted from the light sources such that all light exiting the light exit surface(s) is substantially uniform in brightness and color.

Abstract: Methods and apparatus related to an LED-based lighting unit (10, 110) having an optical component for mixing light output from a plurality of LEDs (34, 134). In some embodiments the optical component may include at least one reflective surface interiorly thereof and the LEDs (34, 134) may be vertically arranged about the reflective surface. At least some of the LEDs (34, 34) may generate a light output generally directed toward the reflective surface. The reflective surface may be configured to direct at least some of the light output directly incident thereon through a light output opening (25, 125) of the optical component.

Abstract: Lighting apparatus and methods employing LED light sources are described. The LED light sources are integrated with other components in the form of a luminaire or other general purpose lighting structure. Some of the lighting structures are formed as Parabolic Aluminum Reflector (PAR) luminaires, allowing them to be inserted into conventional sockets. The lighting structures display beneficial operating characteristics, such as efficient operation, high thermal dissipation, high output, and good color mixing.

Abstract: Methods and apparatus related to a LED-based lighting unit having a high flux density LED array (70). The LED based lighting unit may include an array of LEDs (70) of various spectra and the LEDs may be are arranged so as to occupy a substantial percentage of the area generally defined by the outermost extent of the array of LEDs. The various color LEDs may optionally be intermixed with certain parameters to provide for desired color mixing from the LEDs. The LED-based lighting unit may optionally be implemented in a lighting fixture such as an entertainment lighting fixture.

Abstract: Lighting apparatus and methods employing LED light sources are described. The LED light sources are integrated with other components in the form of a luminaire or other general purpose lighting structure. Some of the lighting structures are formed as Parabolic Aluminum Reflector (PAR) luminaires, allowing them to be inserted into conventional sockets. The lighting structures display beneficial operating characteristics, such as efficient operation, high thermal dissipation, high output, and good color mixing.

Abstract: Methods and systems are provided for lighting systems, including high output linear lighting systems for various environments. The linear lighting systems may include power systems for driving light sources in high-voltage environments.

Abstract: A lighting fixture, and methods for powering and operating same. The fixture comprises a housing having multiple portions. One or more power and control circuit boards are disposed in a first portion of the housing, comprising one or more switching power supplies for receiving an A.C. line voltage and providing a D.C. output voltage, and a communication protocol converter for receiving first lighting instructions formatted according to a first communication protocol and converting at least some of the first lighting instructions to second lighting instructions formatted according to a second communication protocol. A plurality of modular circuit boards are disposed in the second portion of the housing and coupled to the power and control circuit board(s). Each modular circuit board comprises a plurality of LED-based lighting units coupled to the D.C. output voltage and responsive to the second lighting instructions formatted according to the second communication protocol.

Abstract: LED-based lighting fixtures suitable for general illumination in surface-mount or suspended installations, in which heat dissipation properties of the fixtures are significantly improved by decreasing thermal resistance between LED junctions and the ambient air. In various examples, improved heat dissipation is accomplished by increasing a surface area of one or more heat-dissipating elements proximate a trajectory of air flow through the fixture. In one aspect, various structural components of the fixtures are particularly configured to create and maintain a “chimney effect” within the fixture, resulting in a high air-flow rate, natural convection cooling system capable of efficiently dissipating the waste heat from the fixture without active cooling.

Abstract: Lighting apparatus and methods employing LED light sources are described. The LED light sources are integrated with other components in the form of a luminaire or other general purpose lighting structure. Some of the lighting structures are formed as Parabolic Aluminum Reflector (PAR) luminaires, allowing them to be inserted into conventional sockets. The lighting structures display beneficial operating characteristics, such as efficient operation, high thermal dissipation, high output, and good color mixing.