Abstract: A handheld device having a light source, a communication interface, and control circuitry that is capable of interacting with a lighting fixture.

Abstract: A lighting fixture having a light source, a light sensor, a communication interface, and circuitry is described. In addition to controlling the light source, the circuitry is adapted to monitor for a light signal provided from a handheld device via the light sensor; upon receiving the light signal, measure a signal level associated with the light signal; and effect transmission of the signal level to the handheld device via the communication interface. In one embodiment, the circuitry is further configured to receive an instruction to monitor for the light signal from the handheld device via the communication interface such that the circuitry begins monitoring for the light signal upon receiving the instruction.

Abstract: A handheld device for merging groups of lighting fixtures is disclosed. The handheld device includes a communication interface configured to wirelessly communicate with a plurality of lighting fixtures and control circuitry. In one embodiment, the control circuitry is configured to effect selection of a first lighting fixture or a first switch module that is grouped with a first group of lighting fixtures via the communication interface; identify the first group of lighting fixtures; effect selection of a device-to-be-added that is not initially associated with the first group of lighting fixtures via the communication interface; determine a new group by adding the device-to-be-added to the first group of lighting fixtures; create group assignment information for the new group; and send the group assignment information to each of the first group of lighting fixtures and the device-to-be-added of the new group via the communication interface.

Abstract: The present disclosure relates to lighting fixtures for use in a lighting network where the lighting fixtures and other elements are able to communicate with each other via wired or wireless communication techniques. When the lighting network is being formed or modified, a lighting fixture is selected to act as a coordinator for forming the lighting network. For example, a user may employ a commissioning tool to select a particular lighting fixture as the coordinator. The coordinator will send out one or more ‘join my network’ messages toward the other elements of the lighting network. The elements that receive the ‘join my network’ message may respond in order to make the coordinator aware of their presence and join them to a lighting network.

Abstract: A lighting apparatus may include a plurality of light emitting devices, a temperature sensor, and a compensation circuit. The plurality of light emitting devices may include a first light emitting device configured to emit light having a first chromaticity, a second light emitting device configured to emit light having a second chromaticity different than the first chromaticity, and a third light emitting device configured to emit light having the second chromaticity. Moreover, the first, second, and third light emitting devices may be electrically coupled in series. The temperature sensor may be configured to generate a temperature sense signal responsive to heat generated by at least one of the plurality of light emitting devices.

Abstract: A solid state lighting device may include a power supply and a light emitting device electrically coupled between the power supply and a reference node, with the light emitting device defining a node. A control element may be provided in a current shunting path electrically coupled in parallel with the light emitting device between the power supply and the reference node, with the control element being configured to control a voltage drop across the current shunting path responsive to an electrical signal from the node of the light emitting device. Related methods are also discussed.

Abstract: A lighting fixture employing a solid-state light source and an ambient light sensor is disclosed. The solid-state light source is placed within a light source housing and configured to emit light through a lens assembly that covers an opening into a mixing chamber provided within the light source housing. In one embodiment, the ambient light sensor is located within mixing chamber with the solid-state light source. In another embodiment, the ambient light sensor is located outside of the mixing chamber. In either embodiment, the ambient light sensor may be recessed within a waveguide, which aides in controlling the sensor distribution beam for the ambient light sensor. The sensor distribution beam essentially defines an area from which light reflected off of a task surface is accurately monitored via the ambient light sensor. The direction of the sensor distribution beam and the light emitted from the ambient light sensor may generally coincide.

Abstract: The present disclosure relates to lighting fixtures for use in a lighting network where the lighting fixtures and other elements are able to communicate with each other via wired or wireless communication techniques. When the lighting network is being formed or modified, the lighting fixtures may be able to communicate with each other and automatically determine a single lighting fixture to act as a coordinator during a commissioning process. The lighting fixtures can exchange their communication addresses, such as MAC addresses, wherein the lighting fixture with the lowest (or highest) normal communication address becomes the coordinator. The coordinator may also be configured to assign short addresses to use for communications once the lighting network is formed instead of the longer MAC, or like, addresses. The short addresses can reduce routing overhead, and thus make the routing of messages including control information, sensor data, and the like, more efficient.

Abstract: An emergency lighting module for providing emergency power to a solid state luminaire is provided. The emergency lighting module includes a control circuit configured to detect a line voltage, a first input configured to receive an input voltage from the solid state luminaire, and a bidirectional booster/charger circuit coupled to the microcontroller and configured to charge a battery using the input voltage. The bidirectional booster/charger circuit is further configured to provide an output voltage. The emergency lighting module is configured to provide the output voltage to the solid state luminaire in response to a reduction of the line voltage.

Abstract: A solid state lighting device may include a power supply, a light emitting device, and a boost converter. The boost converter may have an input node electrically coupled to the power supply and an output node with the light emitting device electrically coupled between the output node and a reference node. The boost converter may include a switch electrically coupled in a current shunting path between the input node and the reference node, and a controller. The switch may be configured to shunt current from the power supply around the light emitting device. The controller may be configured to generate a pulse width modulation (PWM) signal to control a duty cycle of the switch to provide a pulse width modulated electrical current through the switch and a continuous electrical current through the light emitting device. Related methods are also discussed.

Abstract: An optical waveguide includes a coupling optic and a waveguide body. According to one embodiment, the body includes a first curved surface that extends between an input surface and an end surface and a second surface opposite the first surface. The input surface has a first thickness disposed between the first and second surfaces and the end surface has a second thickness disposed between the first and second surfaces less than the first thickness.

Abstract: The present disclosure relates to lighting fixtures for use in a lighting network where the lighting fixtures and other elements are able to communicate with each other via wired or wireless communication techniques. When the lighting network is being formed or modified, the lighting fixtures may be able to communicate with each other and automatically determine a single lighting fixture to act as a coordinator during a commissioning process. The lighting fixtures can exchange their communication addresses, such as MAC addresses, wherein the lighting fixture with the lowest (or highest) normal communication address becomes the coordinator. The coordinator may also be configured to assign short addresses to use for communications once the lighting network is formed instead of the longer MAC, or like, addresses. The short addresses can reduce routing overhead, and thus make the routing of messages including control information, sensor data, and the like, more efficient.

Abstract: Control of lighting fixtures in a lighting network may be distributed among the lighting fixtures. The lighting fixtures may be broken into groups that are associated with different lighting zones. At least some of the lighting fixtures will have or be associated with one or more sensors. Within the overall lighting network or the various lighting zones, the lighting fixtures may share sensor data from the sensors. Each lighting fixture processes sensor data provided by its own sensor, a remote standalone sensor, or lighting fixture, and processes the sensor data according to the lighting fixture's internal logic to control operation of the lighting fixture. The lighting fixtures may also receive control input from other lighting fixtures, control nodes, light switches, and commissioning tools. The control input is processed along with the sensor data according to the internal logic to enhance control of the lighting fixture.

Abstract: Control of lighting fixtures in a lighting network may be distributed among the lighting fixtures. The lighting fixtures may be broken into groups that are associated with different lighting zones. At least some of the lighting fixtures will have or be associated with one or more sensors. Within the overall lighting network or the various lighting zones, the lighting fixtures may share sensor data from their sensors. Each lighting fixture may process sensor data provided by its own sensor, a remote standalone sensor, or lighting fixture, and process the sensor data according to the lighting fixture's own internal logic to control operation of the lighting fixture. The lighting fixtures may also receive control input from other lighting fixtures, control nodes, light switches, and commissioning tools. The control input may be processed along with the sensor data according to the internal logic to further enhance control of the lighting fixture.

Abstract: The present disclosure relates to lighting fixtures for use in a lighting network where the lighting fixtures and other elements are able to communicate with each other via wired or wireless communication techniques. When the lighting network is being formed or modified, a lighting fixture is selected to act as a coordinator for forming the lighting network. For example, a user may employ a commissioning tool to select a particular lighting fixture as the coordinator. The coordinator will send out one or more ‘join my network’ messages toward the other elements of the lighting network. The elements that receive the ‘join my network’ message may respond in order to make the coordinator aware of their presence and join them to a lighting network.

Abstract: Control of lighting fixtures in a lighting network may be distributed among the lighting fixtures. The lighting fixtures may be broken into groups that are associated with different lighting zones. At least some of the lighting fixtures will have or be associated with one or more sensors. Within the overall lighting network or the various lighting zones, the lighting fixtures may share sensor data from their sensors. Each lighting fixture may process sensor data provided by its own sensor, a remote standalone sensor, or lighting fixture, and process the sensor data according to the lighting fixture's own internal logic to control operation of the lighting fixture. The lighting fixtures may also receive control input from other lighting fixtures, control nodes, light switches, and commissioning tools. The control input may be processed along with the sensor data according to the internal logic to further enhance control of the lighting fixture.

Abstract: The present disclosure relates to a lighting fixture that includes a driver module and at least one other module that provides a lighting fixture function, such as a sensor function, lighting network communication function, gateway function, and the like. The driver module communicates with the other modules in a master/slave scheme over a communication bus. The driver module is configured as a slave communication device, and the other modules are configured as master communication devices. As such, the other modules may initiate communications with the driver to send information to or retrieve information from the driver module.

Abstract: A lighting network where control of the lighting fixtures in the network may be distributed among the lighting fixtures. The lighting fixtures may be broken into groups that are associated with different lighting zones. Certain lighting fixtures will have or be associated with one or more sensors, such as occupancy sensors, ambient light sensors, and the like. Within the lighting network or the various lighting zones, lighting fixtures may share sensor data. Each lighting fixture may process sensor data provided by its own sensor, a remote standalone sensor, or lighting fixture, and process the sensor data according to the lighting fixture's own internal logic to control operation. The lighting fixtures may also receive control input from other lighting fixtures, control nodes, light switches, and commissioning tools. The control input may be processed along with the sensor data according to the internal logic to further enhance control of the lighting fixture.

Abstract: A lighting apparatus includes a light emitting device that has an attribute that is adjustable responsive to a control signal carried on a power line from which the light emitting device receives an Alternating Current (AC) power signal.

Abstract: A solid state lighting device may include a power supply and a light emitting device electrically coupled between the power supply and a reference node, with the light emitting device defining a node. A control element may be provided in a current shunting path electrically coupled in parallel with the light emitting device between the power supply and the reference node, with the control element being configured to control a voltage drop across the current shunting path responsive to an electrical signal from the node of the light emitting device. Related methods are also discussed.