Abstract: A driver and a light fixture including an LED array and the driver. The driver including a microprocessor, at least one capacitor, a charging circuit, and discharging circuit. The charging circuit is controlled by the microprocessor and charges the at least one capacitor to a voltage such as at least two times a forward voltage of the LED array. The discharging circuit is controlled by the microprocessor and delivers power from the at least one capacitor to the LED array in discrete pulses.

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 driver and a light fixture including an LED array and the driver. The driver including a microprocessor, at least one capacitor, a charging circuit, and discharging circuit. The charging circuit is controlled by the microprocessor and charges the at least one capacitor to a voltage such as at least two times a forward voltage of the LED array. The discharging circuit is controlled by the microprocessor and delivers power from the at least one capacitor to the LED array in discrete pulses.

Abstract: A submersible light fixture including an outer casing with a window and a housing, the outer casing being sealed for operation underwater, an LED array within the outer casing behind the window including a plurality of light-emitting diodes, and a driver within the outer casing including a microprocessor, at least one capacitor, a charging circuit, and discharging circuit. The charging circuit charges the at least one capacitor to a voltage of at least two times a forward voltage of the LED array. The discharging circuit delivers power from the at least one capacitor to the LED array in discrete pulses at a voltage of at least two times the forward voltage of the LED array.

Abstract: An illumination source includes a housing (101), at least one first light emitting diode (LED) (102) coupled to the housing and configured to emit green-shifted white light, at least one second LED (104) coupled to the housing and configured to emit blue-shifted white light, and at least one third LED (106) coupled to the housing and configured to emit at least one of a red-orange light and an amber light.

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: A submersible light fixture including an outer casing with a window and a housing, the outer casing being sealed for operation underwater, an LED array within the outer casing behind the window including a plurality of light-emitting diodes, and a driver within the outer casing including a microprocessor, at least one capacitor, a charging circuit, and discharging circuit. The charging circuit charges the at least one capacitor to a voltage of at least two times a forward voltage of the LED array. The discharging circuit delivers power from the at least one capacitor to the LED array in discrete pulses at a voltage of at least two times the forward voltage of the LED array.

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: Methods and apparatus are provided for generating white light at points that are along and near a black body locus. In one embodiment, an illumination source includes a housing (101), at least one first light emitting diode (LED) (102) coupled to the housing and configured to emit green-shifted white light, at least one second LED (104) coupled to the housing and configured to emit blue-shifted white light, and at least one third LED (106) coupled to the housing and configured to emit at least one of a red-orange light and an amber light.

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: A solid-state lamp using a light-emitting diode (LED) as a light source is described. In some embodiments, a segmented driver allows for greater flexibility with the optical and thermal design of the solid-state lamp.