Abstract: A lighting system includes a plurality of lighting fixtures and a terminal device—that controls the plurality of lighting fixtures, wherein: each of the plurality of lighting fixtures transmits, to the terminal device, identification information and acquired information; and the terminal device classifies the plurality of lighting fixtures—on the basis of the information acquired respectively by the plurality of lighting fixtures.

Abstract: A lighting system includes a plurality of lighting devices and a terminal. The terminal includes a display screen, an input unit, a communication unit, and a device controller. The device controller (i) obtains, from outside the terminal, setting information including attribute information indicating at least one attribute regarding an installation location of each of the plurality of lighting devices, (ii) associates each of the plurality of lighting devices with any of the at least one attribute indicated by the attribute information included in the obtained setting information according to a dialog with an operator using the display screen and the input unit of the terminal, so as to classify the plurality of lighting devices under groups.

Abstract: A lighting system includes lighting devices and a terminal. The terminal includes a display screen, an input unit, a wireless transmitter which transmits a radio signal, a communication unit which wirelessly transmits a control command to one of a communication address and a logical address for at least one of the lighting devices, specifying the one of the communication address and the logical address, and a controller which displays, on the display screen, icons respectively corresponding the lighting devices, and when an instruction for selecting any one of the icons has been received by the input unit, causes the wireless transmitter to transmit a radio signal indicating predetermined information. When one of the lighting devices which corresponds to the selected icon has received the radio signal, the lighting device transmits the communication address assigned to the lighting device itself to be used for communication with the communication unit.

Abstract: A lighting system includes a plurality of lighting devices and a terminal. The terminal includes a display screen, an input unit, a communication unit, and a device controller. The device controller (i) obtains, from outside the terminal, setting information including attribute information indicating at least one attribute regarding an installation location of each of the plurality of lighting devices, (ii) associates each of the plurality of lighting devices with any of the at least one attribute indicated by the attribute information included in the obtained setting information according to a dialog with an operator using the display screen and the input unit of the terminal, so as to classify the plurality of lighting devices under groups.

Abstract: A lighting system includes lighting devices and a terminal. The terminal includes a display screen, an input unit, a wireless transmitter which transmits a radio signal, a communication unit which wirelessly transmits a control command to one of a communication address and a logical address for at least one of the lighting devices, specifying the one of the communication address and the logical address, and a controller which displays, on the display screen, icons respectively corresponding the lighting devices, and when an instruction for selecting any one of the icons has been received by the input unit, causes the wireless transmitter to transmit a radio signal indicating predetermined information. When one of the lighting devices which corresponds to the selected icon has received the radio signal, the lighting device transmits the communication address assigned to the lighting device itself to be used for communication with the communication unit.

Abstract: A lighting control device includes: a candidate color selector; a candidate color adjuster; and a color controller. The candidate color selector selects, in accordance with the indication obtained by the indication obtainer, a plurality of candidate colors to be used for color control of lighting devices, from an image obtained by an image obtainer. The candidate color adjuster makes automatic-mode adjustment which is processing for determining colors reproducible by the lighting devices, in accordance with predetermined indexes and based on the plurality of candidate colors selected by the candidate color selector. The color controller causes the lighting devices to each emit illumination light having the color determined by the candidate color adjuster, by controlling the lighting devices.

Abstract: A lighting control device includes: a candidate color selector; a candidate color adjuster; and a color controller. The candidate color selector selects, in accordance with the indication obtained by the indication obtainer, a plurality of candidate colors to be used for color control of lighting devices, from an image obtained by an image obtainer. The candidate color adjuster makes automatic-mode adjustment which is processing for determining colors reproducible by the lighting devices, in accordance with predetermined indexes and based on the plurality of candidate colors selected by the candidate color selector. The color controller causes the lighting devices to each emit illumination light having the color determined by the candidate color adjuster, by controlling the lighting devices.

Abstract: A lighting device includes: a first input terminal for receiving an AC voltage phase-controlled by a first phase-control dimmer; a first light source unit which emits light of a first color; a second light source unit which emits light of a second color different from the first color; a control circuit which controls a total amount of light emitted from the first and second light source units and the color of combined light including the light emitted from the first and second light source units. The control signal includes first and second control information. The first control information is for controlling either one of the total amount of light and the color of combined light, and corresponds to the conduction angle of the first phase-control dimmer. The second control information is for controlling the other of the total amount of light and the color of combined light.

Abstract: A lighting device for lighting a solid light-emitting element includes: a DC power source circuit configured to output DC power; a power conversion circuit including a semiconductor element connected between output terminals of the DC power source circuit, the power conversion circuit configured to supply power to the solid light-emitting element through a control of a conduction state of the semiconductor element; a first control circuit configured to control an output of the DC power source circuit; a second control circuit configured to control an output of the power conversion circuit by controlling the conduction state of the semiconductor element; and a short-circuit detection circuit configured to detect a short-circuit in the semiconductor element. The first control circuit reduces the output of the DC power source circuit when the short-circuit detection circuit detects the short-circuit in the semiconductor element.

Abstract: A lighting device includes: a first input terminal for receiving an AC voltage phase-controlled by a first phase-control dimmer; a first light source unit which emits light of a first color; a second light source unit which emits light of a second color different from the first color; a control circuit which controls a total amount of light emitted from the first and second light source units and the color of combined light including the light emitted from the first and second light source units. The control signal includes first and second control information. The first control information is for controlling either one of the total amount of light and the color of combined light, and corresponds to the conduction angle of the first phase-control dimmer. The second control information is for controlling the other of the total amount of light and the color of combined light.

Abstract: A lighting device includes an AC to DC conversion unit for receiving a setting signal and converting it into a DC voltage having a predetermined voltage, voltage conversion units for converting the DC voltage inputted from the AC to DC conversion unit and driving the light source modules according to drive signals, a PWM signal generating unit for generating a PWM signal having a duty ratio corresponding to the setting signal, and a control unit, by outputting the drive signals to the voltage conversion units based on a command value determined according to the duty ratio, for controlling output powers of the voltage conversion units such that a characteristic curve of the sum of the output powers of the voltage conversion units has the maximum or at least one inflection point within an adjustment range of the conduction angle.

Abstract: A lighting device for lighting a solid light-emitting element includes: a DC power source circuit configured to output DC power; a power conversion circuit including a semiconductor element connected between output terminals of the DC power source circuit, the power conversion circuit configured to supply power to the solid light-emitting element through a control of a conduction state of the semiconductor element; a first control circuit configured to control an output of the DC power source circuit; a second control circuit configured to control an output of the power conversion circuit by controlling the conduction state of the semiconductor element; and a short-circuit detection circuit configured to detect a short-circuit in the semiconductor element. The first control circuit reduces the output of the DC power source circuit when the short-circuit detection circuit detects the short-circuit in the semiconductor element.

Abstract: A lighting device includes an AC to DC conversion unit for receiving a setting signal and converting it into a DC voltage having a predetermined voltage, voltage conversion units for converting the DC voltage inputted from the AC to DC conversion unit and driving the light source modules according to drive signals, a PWM signal generating unit for generating a PWM signal having a duty ratio corresponding to the setting signal, and a control unit, by outputting the drive signals to the voltage conversion units based on a command value determined according to the duty ratio, for controlling output powers of the voltage conversion units such that a characteristic curve of the sum of the output powers of the voltage conversion units has the maximum or at least one inflection point within an adjustment range of the conduction angle.