Abstract: A communication system includes a control device and a plurality of electric units configured to be connected to the control device respectively to communicate with each other, and each of the plurality of electric units having a unique identifier. Each of the plurality of electric units comprises a resistor configured to set the corresponding identifiers. The respective resistors of the plurality of electric units are connected to each other in series to form a setting circuit. The control device is configured to determine the corresponding identifiers of the plurality of respective electric units based on magnitudes of respective voltages applied to the plurality of respective resistors in the setting circuit, and to send signals indicating the determined identifiers to the plurality of electric units, respectively.

Abstract: A vehicle interior illumination device includes: illumination parts respectively provided in a plurality of positions in a vehicle; and a control part which controls turning on and off operations and illuminating colors of the illumination parts. The control part allows the illumination parts respectively to emit lights by different colors of a same type relating to a theme selected by the control part.

Abstract: An illumination control device includes sub controllers each having output ports for controlling a light source of a plurality of light sources and a main controller connected to the sub controllers respectively and controlling the light sources via the sub controllers. Each of the sub controllers controls a lighting form of the corresponding light source of the light sources in accordance with a signal input from the main controller. The main controller transmits, to each of the sub controllers, assignment information representing assignment states of the light sources with respect to the output ports of each of the sub controllers and event information specifying the lighting forms of the light sources. Each of the sub controllers controls the lighting forms by specifying the assignment states of the light sources corresponding to the output ports in accordance with the assignment information.

Abstract: A luminance control device and a luminance control method for controlling luminance of a light emitting member are provided in order to reduce the amount of information to be stored while preventing the user from feeling uncomfortable. The CPU divides by the interpolation division number a value obtained subtracting the reference duty ratio from the reference duty ratio so as to calculate an interpolation variation width, and integrates the interpolation variation width to the reference duty ratio every time the interpolation period elapses, and the variation width in the luminance of the LED is therefore reduced, preventing users to feel uncomfortable, which allows for suppressing the amount of information to be stored.

Abstract: A luminance control device and a luminance control method for controlling luminance of a light emitting member are provided in order to reduce the amount of information to be stored while preventing the user from feeling uncomfortable. The CPU divides by the interpolation division number a value obtained subtracting the reference duty ratio from the reference duty ratio so as to calculate an interpolation variation width, and integrates the interpolation variation width to the reference duty ratio every time the interpolation period elapses, and the variation width in the luminance of the LED is therefore reduced, preventing users to feel uncomfortable, which allows for suppressing the amount of information to be stored.

Abstract: An illumination control device includes a control portion which controls light emission states of luminous bodies and having different light emission colors from one another, so that a cabin is illuminated by emitted light emitted from a light source and having predetermined chromaticity. The light source has the luminous bodies. The control portion controls the light emission states of the luminous bodies in accordance with a correction coefficient inputted from outside to adjust the chromaticity of the emitted light.

Abstract: An in-vehicle illumination system which is to be disposed in a door of a vehicle has: a door warning lamp which is disposed in the vicinity of a door handle that is operated when the door is to be opened, and which indicates an open/close state of the door; a door handle illumination lamp which illuminates the door handle; a decorative lamp which emits decorative light; and a first control connector having a first control apparatus which controls ON/OFF states of the door warning lamp, the door handle illumination lamp, and the decorative lamp. The first control apparatus of the first control connector causes, when the door is in an open state, the door warning lamp, the door handle illumination lamp, and the decorative lamp to be lighted ON with a predetermined warning color.

Abstract: A vehicle interior illumination device includes: illumination parts respectively provided in a plurality of positions in a vehicle; and a control part which controls turning on and off operations and illuminating colors of the illumination parts. The control part allows the illumination parts respectively to emit lights by different colors of a same type relating to a theme selected by the control part.

Abstract: A vehicle interior illumination device includes an illumination lamp that is provided in a vehicle interior and is configured to be turned on to illuminate the vehicle interior, a detector that detects a condition to have the illumination lamp to be turned on, and a controller that controls a lighting of the illumination lamp. When the condition is detected by the detector, the controller lights the illumination lamp with a first light amount and when the condition is not detected by the detector, the controller lights the illumination lamp with a second light amount smaller than the first light amount.

Abstract: An illumination control device includes sub controllers each having output ports for controlling a light source of a plurality of light sources and a main controller connected to the sub controllers respectively and controlling the light sources via the sub controllers. Each of the sub controllers controls a lighting form of the corresponding light source of the light sources in accordance with a signal input from the main controller. The main controller transmits, to each of the sub controllers, assignment information representing assignment states of the light sources with respect to the output ports of each of the sub controllers and event information specifying the lighting forms of the light sources. Each of the sub controllers controls the lighting forms by specifying the assignment states of the light sources corresponding to the output ports in accordance with the assignment information.

Abstract: An illumination control device includes a control portion which controls light emission states of luminous bodies and having different light emission colors from one another, so that a cabin is illuminated by emitted light emitted from a light source and having predetermined chromaticity. The light source has the luminous bodies. The control portion controls the light emission states of the luminous bodies in accordance with a correction coefficient inputted from outside to adjust the chromaticity of the emitted light.

Abstract: A lighting system which can obtain a relaxing effect of the fluctuation of color and brightness regardless of the appearance thereof is provided. The lighting system has a light source emitting illumination light, a memory section storing a lighting signal indicating the illumination light, a reading section reading the lighting signal from the memory section, and a control section controlling the light source based on the lighting signal read by the memory section. The lighting signal is a signal representing at least one of fluctuation of color and brightness in the illumination light by using synthetic waves in which a plurality of waves having different frequencies are synthesized.

Abstract: In a load control unit, three R, G, and B LED chips that constitute each light source (33a-33d) of reading lamps (25-31) and a connector (35) with a built-in controller are mounted on a circuit board (37) to thereby eliminate the connection of a controller (35b) built into the connector (35) with the built-in controller and the respective light sources (33a-33d) by signal lines. In addition, the controller (35b) and a lighting ECU (43) are connected by a multiplex communication line (39), and the multiplex communication line (39) is routed in pillars (15, 17) of a vehicle (1). Consequently, the number of wires can be reduced compared with when individual wires connected to the respective light sources (33a-33d) are passed through the pillars (15, 17), and thereby making it possible to effectively use limited spaces within the pillars (15, 17) through which many other wires are passed.

Abstract: A lighting control system includes a plurality of light sources, a plurality of light source drivers, each of the light source drivers being configured to adjust a light emission intensity of an associated one of the light sources in at least two levels, and an integrated controller configured to control the light source drivers to control conditions of the light sources in an integrated manner. The integrated controller is configured to control the light source drivers to execute a light intensity transition of reducing the light emission intensity from a first light intensity level to a second light intensity level that is lower than the first light intensity level with respect to each of the light sources such that a timing at which the light intensity transition ends is substantially the same for each of the light sources.

Abstract: A vehicle interior illumination device includes an illumination lamp that is provided in a vehicle interior and is configured to be turned on to illuminate the vehicle interior, a detector that detects a condition to have the illumination lamp to be turned on, and a controller that controls a lighting of the illumination lamp. When the condition is detected by the detector, the controller lights the illumination lamp with a first light amount and when the condition is not detected by the detector, the controller lights the illumination lamp with a second light amount smaller than the first light amount.

Abstract: A lighting control system includes a plurality of light sources, a plurality of light source drivers, each of the light source drivers being configured to adjust a light emission intensity of an associated one of the light sources in at least two levels, and an integrated controller configured to control the light source drivers to control conditions of the light sources in an integrated manner The integrated controller is configured to control the light source drivers to execute a light intensity transition of reducing the light emission intensity from a first light intensity level to a second light intensity level that is lower than the first light intensity level with respect to each of the light sources such that a timing at which the light intensity transition ends is substantially the same for each of the light sources.

Abstract: A lighting system which can obtain a relaxing effect of the fluctuation of color and brightness regardless of the appearance thereof is provided. The lighting system has a light source emitting illumination light, a memory section storing a lighting signal indicating the illumination light, a reading section reading the lighting signal from the memory section, and a control section controlling the light source based on the lighting signal read by the memory section. The lighting signal is a signal representing at least one of fluctuation of color and brightness in the illumination light by using synthetic waves in which a plurality of waves having different frequencies are synthesized.

Abstract: A vehicle-interior illumination device for illuminating a cabin of a vehicle (1) includes a plurality of seat lamps (21-31) individually illuminating seats (3-11) in the cabin and operating units (21a-31a) for each seat arranged in the cabin so as to respectively correspond with the seat lamps (21-31). Each of the operating units (21a-31a) for each seat is provided with an area that is touchable by an occupant on corresponding seat and with another area that is touchable by occupants on adjacent seats, so as to turn on or off the corresponding seat lamp by touching the areas.

Abstract: In a load control unit, three R, G, and B LED chips that constitute each light source (33a-33d) of reading lamps (25-31) and a connector (35) with a built-in controller are mounted on a circuit board (37) to thereby eliminate the connection of a controller (35b) built into the connector (35) with the built-in controller and the respective light sources (33a-33d) by signal lines. In addition, the controller (35b) and a lighting ECU (43) are connected by a multiplex communication line (39), and the multiplex communication line (39) is routed in pillars (15, 17) of a vehicle (1). Consequently, the number of wires can be reduced compared with when individual wires connected to the respective light sources (33a-33d) are passed through the pillars (15, 17), and thereby making it possible to effectively use limited spaces within the pillars (15, 17) through which many other wires are passed.

Abstract: Each of reading lamps serving for second row seats and a third row seat of a vehicle includes light sources spaced in a front-rear direction of the vehicle. The lighting pattern of the light sources which includes the respective intensities thereof is determined in accordance with the sliding position of the corresponding seat in the front-rear direction of the vehicle. Accordingly, the light sources are appropriately turned on so that light from the reading lamp may sufficiently reach an occupant on the seat regardless of whether the sliding position of a seat is a forward position or a rearward position, and thereby the occupant can be appropriately lit in accordance with a change in the seat position.