A method of inactivating one or more pathogens in an environment. The method includes providing light from at least one lighting element of a lighting device installed in the environment, the at least one lighting element configured to provide light toward a target area in the environment, the provided light having at least a pathogen-inactivating first component in a first range of wavelengths of 400 nanometers to 420 nanometers. The pathogen-inactivating first component of light produces an irradiance of at least 0.01 mW/cm.sup.2 as measured at a surface in the target area that is unshielded from the lighting device and located at a distance of 1.5 meters from an external-most luminous surface of the lighting device. Providing the light causes the one or more pathogens to be inactivated.

A driver unit for programming an output current of a driver with an output stage for providing the output current and a primary control stage with a control input for controlling the output current has been provided. The driver unit includes a programmable memory unit for storing data corresponding a target value of the output current, a programming signal circuit configured to provide electric signals for writing the data in the programmable memory unit as well as a controller circuit with a controller. The controller is operatively connected to the programmable memory unit and is configured to read out the data stored in the programmable memory unit and generate a controller output signal for adjusting the output current of the driver, based on the data stored in the programmable memory unit.

A driver unit for programming an output current of a driver with an output stage for providing the output current and a primary control stage with a control input for controlling the output current has been provided. The driver unit includes a programmable memory unit for storing data corresponding a target value of the output current, a programming signal circuit configured to provide electric signals for writing the data in the programmable memory unit as well as a controller circuit with a controller. The controller is operatively connected to the programmable memory unit and is configured to read out the data stored in the programmable memory unit and generate a controller output signal for adjusting the output current of the driver, based on the data stored in the programmable memory unit.

A computer-vision system is equipped with a first camera and a second camera spaced apart from each other and enables acquisition of a first image and a second image of a light beam that propagates from a light-beam source towards a target position of the light beam. The first image and the second image of the beam differ from each other as a result of the first camera and the second camera being spaced apart from each other. The system produces a disparity map of the first image and second image of the beam to be projected in a three-dimensional point cloud starting from the disparity map according to point-cloud-projection calibration data that set in relation disparity maps for reference images with respective three-dimensional point clouds.

A method of providing doses of light sufficient to deactivate bacteria throughout a volumetric space. The method includes: (1) receiving data associated with a desired illuminance level for the space, indicative of an estimated occupancy of the volumetric space over a pre-determined period of time, and indicative of dimensions of the space; (2) determining, based on the received data, an arrangement of one or more lighting fixtures in the volumetric space, the one or more lighting fixtures configured to at least partially emit disinfecting light having a wavelength of between 400 nm and 420 nm, and a total radiometric power to be applied via the one or more lighting fixtures to produce a desired power density at any exposed surface within the volumetric space during the period of time; and (3) installing the determined arrangement of one or more lighting fixtures in the volumetric space.

Self-contained devices, systems and methods for housing holiday lights in the form of icicles, and the like, in self-contained boxes that can easily be mounted and removed around house windows and eaves. The lights can be retractable and extendable downward from the boxes, and the lights can be remotely controlled by smart phones and the like. The boxes can have displays for holiday messages as well as speakers for playing music and messages. Another embodiment can include a drop down version where the lights drop down from a housing. Another version can include a fold out version where a support frame having upwardly protruding lights is rotated so that the lights extend below the housing.

A system for displaying a plurality of objects is provided. The system includes at least one display case which houses the plurality of objects such that each of the plurality of objects is visible from outside of the at least one display case; a lighting system; an electronic display; and a control system which causes each of said plurality of objects to be successively displayed on the electronic display, and which manipulates the lighting system such that, while each of the plurality of objects is being displayed on the electronic display, the object being displayed is simultaneously highlighted in the at least one display case by the lighting system.

A system for displaying a plurality of objects is provided. The system includes at least one display case which houses the plurality of objects such that each of the plurality of objects is visible from outside of the at least one display case; a lighting system; an electronic display; and a control system which causes each of said plurality of objects to be successively displayed on the electronic display, and which manipulates the lighting system such that, while each of the plurality of objects is being displayed on the electronic display, the object being displayed is simultaneously highlighted in the at least one display case by the lighting system.

An illumination system for a lighting assembly comprises a light assembly configured to selectively illuminate an operating region in a surgical suite and a plurality of light sources positioned within the light assembly and configured to emit light. The system further comprises at least one imager configured to capture image data and a controller. The controller is configured to scan the image data in at least one region of interest for a shaded region and identify a location of the shaded region within the region of interest. The controller is further configured to control the light assembly to activate at least one of the light sources to emit light impinging on the shaded region within the region of interest.

A synchronous control system is provided. A transmission device 1 includes a reception unit 11 that receives a control signal for a lighting device in a live event site and a transmission unit 13 that transmits, to a reception device in a live viewing site, the control signal to which an output time is appended. The output time is obtained by adding a predetermined period of time to a receipt time at which the control signal is received. A reception device 2 includes a reception unit 21 that receives the control signal to which the output time is appended, and an output control unit 13 that outputs the control signal to a lighting device 6 in the live viewing site at the output time, and allows the control of the lighting device 6 to synchronize with at least one of video and audio to be played in the live viewing site.