Abstract: A luminaire includes a light source, a terminal that receives a dimming signal indicating a dimming rate and a parameter signal including a predetermined coefficient, a storage that stores the predetermined coefficient included in the parameter signal received by the terminal, a controller that generates a control value by multiplying information based on the dimming signal received by the terminal by the predetermined coefficient stored in the storage, and a lighting circuit that causes the light source to output light at a brightness in accordance with the control value provided by the controller.

Abstract: When a controller receives an external instruction for initial setting, the controller gives image sensors an instruction regarding lighting. When an image sensor among the image sensors receives the instruction regarding lighting from the controller, the image sensor performs lighting control in accordance with the instruction regarding lighting on a luminaire among luminaires to determine (i) a relative position of the luminaire relative to the image sensor and (ii) a relative position of the image sensor relative to a different image sensor among the image sensors. The controller determines positions of the image sensors and positions of the luminaires by collecting the relative positions of the image sensors and the relative positions of the luminaires determined by the image sensors.

Abstract: A luminaire includes a light source, a terminal that receives a dimming signal indicating a dimming rate and a parameter signal including a predetermined coefficient, a storage that stores the predetermined coefficient included in the parameter signal received by the terminal, a controller that generates a control value by multiplying information based on the dimming signal received by the terminal by the predetermined coefficient stored in the storage, and a lighting circuit that causes the light source to output light at a brightness in accordance with the control value provided by the controller.

Abstract: When a controller receives an external instruction for initial setting, the controller gives image sensors an instruction regarding lighting. When an image sensor among the image sensors receives the instruction regarding lighting from the controller, the image sensor performs lighting control in accordance with the instruction regarding lighting on a luminaire among luminaires to determine (i) a relative position of the luminaire relative to the image sensor and (ii) a relative position of the image sensor relative to a different image sensor among the image sensors. The controller determines positions of the image sensors and positions of the luminaires by collecting the relative positions of the image sensors and the relative positions of the luminaires determined by the image sensors.

Abstract: The lighting system includes a plurality of lighting apparatuses and a controller configured to control the lighting apparatuses. Upon receiving a random number generation instruction from the controller, the lighting apparatus generates a first random number and a second random number by using a random number generation unit, and counts synchronization signals sent from the controller. When acknowledging that the counted number of the synchronization signals is equal to the first random number, the lighting apparatus sends the second random number to the controller. The controller identifies the lighting apparatuses based on the second random numbers respectively received from the lighting apparatuses, and uniquely allocates mutually different addresses to the respective identified lighting apparatuses.

Abstract: The lighting system includes a plurality of lighting apparatuses and a controller configured to control the lighting apparatuses. Upon receiving a random number generation instruction from the controller, the lighting apparatus generates a first random number and a second random number by using a random number generation unit, and counts synchronization signals sent from the controller. When acknowledging that the counted number of the synchronization signals is equal to the first random number, the lighting apparatus sends the second random number to the controller. The controller identifies the lighting apparatuses based on the second random numbers respectively received from the lighting apparatuses, and uniquely allocates mutually different addresses to the respective identified lighting apparatuses.

Abstract: An illumination system includes illumination devices, an imaging device and a control device. Each of the illumination devices includes a light source, a lighting circuit unit and a transmission control unit. The control device includes a storage unit, a transmission processing unit and a main control unit for selecting a control-target illumination area, reading out the identification code corresponding to the selected illumination area from the storage unit and causing the transmission processing unit to transmit a signal containing a control command on the illumination device. The main control unit is operable in an initial setting mode in which the correlations between the identification codes of the illumination devices and the illumination areas are set by causing the imaging device to take an image of the illumination space while turning on the illumination devices and detecting the illumination area of each of the illumination devices from the image thus taken.

Abstract: An illumination device includes an illumination lamp installed to a device housing, a sensor for use in controlling the lighting operation of the illumination lamp, and a sensor attachment unit through which the sensor is detachably attached to the device housing such that a sensing unit of the sensor is exposed to the outside. The illumination device further includes a decoration member for attachment to the sensor attachment unit when the sensor is not attached to the sensor attachment unit, the decoration member having substantially the same outward appearance as that of the sensor. The sensor and the decoration member are interchangeably attached to the sensor attachment unit.

Abstract: An illumination system includes illumination devices, an imaging device and a control device. Each of the illumination devices includes a light source, a lighting circuit unit and a transmission control unit. The control device includes a storage unit, a transmission processing unit and a main control unit for selecting a control-target illumination area, reading out the identification code corresponding to the selected illumination area from the storage unit and causing the transmission processing unit to transmit a signal containing a control command on the illumination device. The main control unit is operable in an initial setting mode in which the correlations between the identification codes of the illumination devices and the illumination areas are set by causing the imaging device to take an image of the illumination space while turning on the illumination devices and detecting the illumination area of each of the illumination devices from the image thus taken.

Abstract: An illumination device includes an illumination lamp installed to a device housing, a sensor for use in controlling the lighting operation of the illumination lamp, and a sensor attachment unit through which the sensor is detachably attached to the device housing such that a sensing unit of the sensor is exposed to the outside. The illumination device further includes a decoration member for attachment to the sensor attachment unit when the sensor is not attached to the sensor attachment unit, the decoration member having substantially the same outward appearance as that of the sensor. The sensor and the decoration member are interchangeably attached to the sensor attachment unit.