An acoustic structure includes: at least one hollow section defined by a pair of opposed transparent or translucent wall members and a plurality of connecting wall members interconnecting the pair of wall members, and at least one opening portion communicating an interior space inside the hollow section to an exterior space. At least some of the connecting wall members may have colorless or colored transparency or translucence. Further, a mirror surface may be provided on any desired portion of the wall members defining the hollow section. Furthermore, a lighting device may be disposed near the outside or inside of the hollow section. Because light or a scene on the opposite side of the acoustic structure is visible through the transparent or translucent wall member, design quality and usability of the acoustic structure can be enhanced.

A LED driving system has an energy storage component receiving an input voltage, a power switch coupled between the energy storage component and a reference ground, a first output switch coupled between the energy storage component and a first output terminal, a second output switch coupled between the energy storage component and a second output terminal, and a control circuit, wherein the first output terminal produces a first output voltage to supply power for a first LED array, the second output terminal produces a second output voltage to supply power for a second LED array, the control circuit controls a duty cycle of the first output switch according to voltages at cathode terminals of multiple LED strings in the LED array and controls a duty cycle of the second output switch according to voltages at cathode terminals of multiple LED strings in the second LED array.

An automatic sensing system includes at least one LED lamp, and at least one sensing control device. Each of at least one LED lamp includes at least three operation modes. The three operation modes includes a closing mode, a low light mode, and a fill light mode. The sensing control device includes an illumination detecting module, a pyroelectric sensing module, a signal processing module, and a lamp control module. The signal processing module is configured for processing the signal data output from the pyroelectric sensing module based on the signal data detected by the illumination detecting module and outputting a control signal. The lamp control module is configured for controlling all of the LED lamps to work in one of the three operation modes so as to make any one of the at least one sensing control device to control all of the LED lamps to work. The invention further includes an automatic sensing control method for LED lighting.

Systems and methods are disclosed for a police vehicle exterior light control. An example disclosed police vehicle includes first beacons positioned on a chassis of the police vehicle, second beacons positioned on a lightbar of the police vehicle, and a plurality of spotlights on the lightbar. The example police vehicle also includes a light control unit that tracks a location of wearable nodes associated with a police officer. Additionally, the light control unit illuminates the area around the police officer using selected ones of the plurality of spotlights.

The present invention relates to a method for controlling a lighting device, the method comprising: receiving data relating to settings on a camera; determining an illuminance for at least one lighting device in dependence on said data; and modifying the illuminance of a lighting device to said determined illuminance.

A motor includes a stator coil, a rotor and a driving unit. The stator coil is configured to be electrified to generate a magnetic force. The rotor is rotatably coupled with the stator coil and includes a magnetic member facing the stator coil. The driving unit is electrically connected to the stator coil and outputs a driving signal to the stator coil. An electrical characteristic value of the driving signal increases in a gradual manner. The rotor outputs a motive power that is gradually increased during a process the rotor rotates from an electric angle back to a same electric angle. In addition, an activation control method for the motor and a fan are also disclosed.

A light emission apparatus emits light that activates a human body. The light emission apparatus includes a light-emitting module that emits light from a light emission region. The light emission region includes a first light emission region that emits light having a first luminance and a second light emission region that emits light having a second luminance greater than the first luminance. The second light emission region is a different region than the first light emission region. The first light emission region is located in a central region of the light emission region. The second light emission region is peripheral to the first light emission region. The light having the first luminance emitted from the first light emission region has a predetermined wavelength that activates the human body.

A lighting fixture controlling device includes a power input connectable to a power supply, a power output for connecting the device with a lighting fixture, an electricity metering device that is configured to determine an amount of electric energy conducted to the lighting fixture, a motion detector that includes a microwave sensor, and an output controller that is configured to control the electric energy output by the power output based on motion data provided by the motion detector and based on the determined amount of electric energy.

A light exposure system includes an external apparatus that is placed on a facility and a portable terminal that communicates with the external apparatus, and manages the amount of light which the user is exposed to. Furthermore, the external apparatus transmits information regarding the amount of light which the user is exposed to, to the portable terminal. In addition, the portable terminal includes: a terminal-side controller which receives the information from the external apparatus and calculates the cumulative value of the amount of light from the information, when a communication is established with the external apparatus; and a display that displays the cumulative value calculated by the terminal-side controller.

A light bulb assembly equipped for dedicated short range communication (DSRC). The light bulb assembly includes a light emitting element and a DSRC transceiver. The light bulb assembly is configured for receipt by a traffic light.