Abstract: A lighting apparatus which is one of a plurality of lighting apparatuses each capable of performing wireless communication with a control device. The lighting apparatus includes: a light emitting unit; a controller which controls turn-on of the light emitting unit; and a communication unit configured to perform wireless communication with the control device to obtain correction time from the control device, the correction time being based on communication delay between the control device and each lighting apparatus. The communication unit further obtains a turn-on instruction for turning on the light emitting unit from the control device, and transmits a response to the turn-on instruction to the control device upon obtainment of the turn-on instruction. The controller turns on the light emitting unit after passage of a time period from when the response is transmitted to the device, the time period being calculated by subtracting communication latency from the correction time.

Abstract: An illumination control device (100) includes a motion detector (110) and a control unit (150) which perform control of illuminance, color, or distribution of light of an illumination light source (210) based on a result of detection by the motion detector (110).

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: An illumination system includes a light projection device, an illuminance measurement unit, a lighting device, and a control device. The light projection device projects an image to a space. The illuminance measurement unit measures an illuminance value of a location where the illuminance measurement unit is placed in the space. The lighting device has a dimming function for illuminating the location in the space with a brightness. The control device includes an illuminance setting unit, a difference calculation unit, and an illumination light adjusting unit. The illuminance setting unit sets an illuminance value of the location. The difference calculation unit calculates a difference between the illuminance value set by the illuminance setting unit and the illuminance value measured by the illuminance measurement unit. The illumination light adjusting unit adjusts a brightness of the lighting device such that the difference calculated by the difference calculation unit is reduced.

Abstract: A motion detection system including: an infrared light source that emits infrared rays; a camera that captures a subject using infrared rays reflected by the subject; a memory that stores a plurality of pieces of outline data an output device that outputs information associated with a state of the subject; and a controller that controls the infrared light source, the camera, the memory, and the output device, wherein the controller performs the following: makes a comparison between an outline of the subject captured by the camera and the pieces of outline data; selects, from among the pieces of outline data, a piece of outline data which resembles the outline of the subject captured by the camera; and causes the output device to output information associated with a state of the subject corresponding to the selected piece of outline data.

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 which controls a lighting device, and includes: a feature quantity calculator which calculates a feature quantity of image content to be reproduced and projected by an image reproducing device; and a lighting controller which controls light emission of the lighting device based on the feature quantity calculated by the feature quantity calculator.

Abstract: In a lighting system, each lamp has a wireless circuit that realizes: a time measuring unit measuring the elapsed time period since the lamp is turned on by a wall switch; a specifying unit specifying a plurality of electrical devices wired to the wall switch according to the elapsed time period measured by each time measuring unit; an identification information assigning unit assigning same identification information to the plurality of lamps specified by the specifying unit as being wired to the same wall switch; and a registration unit registering a Net-ID of a remote control.

Abstract: Illumination control system 1 includes illumination apparatuses 10 and control apparatus 20 for controlling them. Each illumination apparatus 10 includes: communication unit 101 that performs wireless communication with control apparatus 20; and controller 102 that receives from control apparatus 20 instruction on operation and causes illumination apparatus 10 to perform the instructed operation.

Abstract: A lighting apparatus which is one of a plurality of lighting apparatuses each capable of performing wireless communication with a control device. The lighting apparatus includes: a light emitting unit; a controller which controls turn-on of the light emitting unit; and a communication unit configured to perform wireless communication with the control device to obtain correction time from the control device, the correction time being based on communication delay between the control device and each lighting apparatus. The communication unit further obtains a turn-on instruction for turning on the light emitting unit from the control device, and transmits a response to the turn-on instruction to the control device upon obtainment of the turn-on instruction. The controller turns on the light emitting unit after passage of a time period from when the response is transmitted to the device, the time period being calculated by subtracting communication latency from the correction time.

Abstract: A luminaire includes: a power circuit that supplies power to a light source; an antenna that at least one of transmits and receives a wireless signal; and a metal housing that contains the antenna and the power circuit, wherein the metal housing has an opening, and the antenna and the opening are arranged to cause a polarization plane of an electric wave most strongly radiated from the antenna and a polarization plane of an electric wave most strongly radiated from the opening to substantially coincide with each other.

Abstract: Illumination control system 1 includes illumination apparatuses 10 and control apparatus 20 for controlling them. Each illumination apparatus 10 includes: communication unit 101 that performs wireless communication with control apparatus 20; and controller 102 that receives from control apparatus 20 instruction on operation and causes illumination apparatus 10 to perform the instructed operation.

Abstract: An illumination light source includes: a light-emitting unit; a disturbance detecting unit which detects a specific disturbance; a timer circuit that times a first period and a second period, the first period starting from when the disturbance detecting unit detects the specific disturbance, a second period immediately following after the first period; and a driving circuit that turns ON the light-emitting unit at a start of the first period, causes the light-emitting unit to emit light during the first period, causes the light-emitting unit to emit light that is different from the light emitted during the second period, and turns OFF the light-emitting unit at an end of the second period.

Abstract: A lighting device including: a lighting circuit; a drive circuit; a dimmer control circuit; and an LPF, the drive circuit for increasing on-time as a pulse height increases when an inputted PWM signal satisfies a first condition where a pulse height is greater than a first threshold and less than a second threshold greater than the first threshold, and making the on-time for which a switching element is on when the switching element turns on and off once in a burst period, constant in a second condition where the height pulse is greater than the second threshold, the LPF generating a smoothed PWM signal which has a first time period satisfying the first condition and a second time period satisfying the second condition in a signal interval indicating a duty ratio, and outputting the smoothed PWM signal to the drive circuit.

Abstract: An illumination control device (100) includes a motion detector (110) and a control unit (150) which perform control of illuminance, color, or distribution of light of an illumination light source (210) based on a result of detection by the motion detector (110).

Abstract: A lighting device which includes: a light source; a receiving unit which receives a control signal from outside the lighting device via wireless communication; and a control unit which causes the light source to emit light according to the control signal received by the receiving unit. When the receiving unit receives, from the outside the lighting device via the wireless communication, a test signal different from the control signal and for determining a state of the wireless communication, the control unit calculates a packet error rate of the test signal received by the receiving unit and causes the light source to emit light such that an emission state is changed according to a communication quality of the wireless communication determined based on at least the calculated packet error rate.

Abstract: An illumination light source includes: a light-emitting unit; a disturbance detecting unit which detects a specific disturbance; a timer circuit that times a first period and a second period, the first period starting from when the disturbance detecting unit detects the specific disturbance, a second period immediately following after the first period; and a driving circuit that turns ON the light-emitting unit at a start of the first period, causes the light-emitting unit to emit light during the first period, causes the light-emitting unit to emit light that is different from the light emitted during the second period, and turns OFF the light-emitting unit at an end of the second period.

Abstract: A lighting device which includes: a light source; a receiving unit which receives a control signal from outside the lighting device via wireless communication; and a control unit which causes the light source to emit light according to the control signal received by the receiving unit. When the receiving unit receives, from the outside the lighting device via the wireless communication, a test signal different from the control signal and for determining a state of the wireless communication, the control unit calculates a packet error rate of the test signal received by the receiving unit and causes the light source to emit light such that an emission state is changed according to a communication quality of the wireless communication determined based on at least the calculated packet error rate.

Abstract: In a lighting system, each lamp has a wireless circuit that realizes: a time measuring unit measuring the elapsed time period since the lamp is turned on by a wall switch; a specifying unit specifying a plurality of electrical devices wired to the wall switch according to the elapsed time period measured by each time measuring unit; an identification information assigning unit assigning same identification information to the plurality of lamps specified by the specifying unit as being wired to the same wall switch; and a registration unit registering a Net-ID of a remote control.

Abstract: Provided is a lighting device which can be dimmed and subjected to change in color temperature of the lighting color in accordance with a dimming level. To the lighting device, AC power under phase-controlled is supplied. The lighting device is provided with a light emitting elements array and a switching unit. The light emitting elements array includes a plurality of light emitting elements, which are two or more types of light emitting elements having different lighting colors. The switching unit switches an electrical connections between the light emitting elements included in the light emitting elements array so as to change the number of light emitting elements inserted in series to a power supply path and the proportion of numbers of light emitting elements per lighting color among the number of the inserted light emitting elements in accordance with a voltage supplied to the light emitting elements array.