Lighting systems, methods, and devices for protecting human circadian neuroendocrine function during night use are described. Suitable lighting conditions can be provided for a working environment while protecting the circadian neuroendocrine systems of those occupying the illuminated workplace during the night. Lighting systems, methods, and devices can provide substantive attenuation of the pathologic circadian disruption in night workers. Lighting systems, methods, and devices can attenuate the specific bands of light implicated in circadian disruption. LED lighting systems, methods, and devices can provide increased intensity at a different portion of the spectrum than conventional LEDs, providing a useable white light even when unfavorable portions of the wavelength are attenuated by a notch filter. LED lighting systems, methods, and devices can switch between a daytime configuration and a night time configuration, wherein the daytime configuration provides unfiltered light and the night time configuration provides filtered light.

Lighting systems, methods, and devices for protecting human circadian neuroendocrine function during night use are described. Suitable lighting conditions can be provided for a working environment while protecting the circadian neuroendocrine systems of those occupying the illuminated workplace during the night. Lighting systems, methods, and devices can provide substantive attenuation of the pathologic circadian disruption in night workers. Lighting systems, methods, and devices can attenuate the specific bands of light implicated in circadian disruption. LED lighting systems, methods, and devices can provide increased intensity at a different portion of the spectrum than conventional LEDs, providing a useable white light even when unfavorable portions of the wavelength are attenuated by a notch filter. LED lighting systems, methods, and devices can switch between a daytime configuration and a night time configuration, wherein the daytime configuration provides unfiltered light and the night time configuration provides filtered light.

A lighting control system for controlling a cumulative light emitted by a lighting fixture having a plurality of LED light sources may comprise a plurality of LED drivers adapted to be coupled to a respective one of the LED light sources and configured to control an intensity of the respective LED light source, and a controller configured to transmit a single digital message for controlling the cumulative light emitted by the lighting fixture. Each of the plurality of LED drivers is configured to adjust the intensity of the respective LED light source to a preset intensity in response to the single digital message transmitted by the controller.

A lighting control system for controlling a cumulative light emitted by a lighting fixture having a plurality of LED light sources may comprise a plurality of LED drivers adapted to be coupled to a respective one of the LED light sources and configured to control an intensity of the respective LED light source, and a controller configured to transmit a single digital message for controlling the cumulative light emitted by the lighting fixture. Each of the plurality of LED drivers is configured to adjust the intensity of the respective LED light source to a preset intensity in response to the single digital message transmitted by the controller.

A method for training a machine for automatizing lighting control actions, wherein the method comprises the steps of: controlling one or more lighting devices based on a first set of control parameters; controlling the one or more lighting devices based on a second set of control parameters; wherein the second set of control parameters is different from the first set of control parameters; detecting presence of a user based on a presence signal output from a presence sensing means; monitoring a response of the user related to the second set of control parameters; wherein the response is monitored during a time period; evaluating feedback of the user based on the monitored response; wherein the feedback is positive if no active response has been monitored; training the machine based on the evaluated feedback.

A method for training a machine for automatizing lighting control actions, wherein the method comprises the steps of: controlling one or more lighting devices based on a first set of control parameters; controlling the one or more lighting devices based on a second set of control parameters; wherein the second set of control parameters is different from the first set of control parameters; detecting presence of a user based on a presence signal output from a presence sensing means; monitoring a response of the user related to the second set of control parameters; wherein the response is monitored during a time period; evaluating feedback of the user based on the monitored response; wherein the feedback is positive if no active response has been monitored; training the machine based on the evaluated feedback.

The invention is directed to an operation-control node (100) for controlling operation of one or more external lighting devices (101, 103) via a local-area wireless communication network. The operation-control node is configured to receive from a user-input device (105) input signals (I) indicative of respective operation-control data forming a list of settings of a control parameter values of a lighting control parameter for sequentially controlling operation of a lighting device. The operation-control node is configured to determine a setting update for updating the control parameter value and provide via the local-area wireless communication network an output message (O) comprising the setting update only while an output-control information that depends on an ascertained network-capacity information indicative of an expected network capacity available for transmitting messages within the local-area wireless communication network indicates so, thus reducing the risk of exceeding the network capacity when controlling operation of the lighting devices.

The invention is directed to an operation-control node (100) for controlling operation of one or more external lighting devices (101, 103) via a local-area wireless communication network. The operation-control node is configured to receive from a user-input device (105) input signals (I) indicative of respective operation-control data forming a list of settings of a control parameter values of a lighting control parameter for sequentially controlling operation of a lighting device. The operation-control node is configured to determine a setting update for updating the control parameter value and provide via the local-area wireless communication network an output message (O) comprising the setting update only while an output-control information that depends on an ascertained network-capacity information indicative of an expected network capacity available for transmitting messages within the local-area wireless communication network indicates so, thus reducing the risk of exceeding the network capacity when controlling operation of the lighting devices.

A light system for suppressing a microbe having a photosensitive defense mechanism, said light system comprising a plurality of light sources comprising at least, a first light source configured for emitting a first light having a first wavelength suitable for photolyzing or otherwise inactivating the microbe; and a second light source configured for emitting a second light having a second wavelength, different from said first wavelength, suitable for disrupting said photosensitive defense mechanism; a controller for selectively powering said plurality of light sources in a plurality of modes to emit emitted light from said light system, said plurality of modes comprises at least a first mode and a second mode, wherein said emitted light is white light in at least one of said first mode or said second mode.

A light system for suppressing a microbe having a photosensitive defense mechanism, said light system comprising a plurality of light sources comprising at least, a first light source configured for emitting a first light having a first wavelength suitable for photolyzing or otherwise inactivating the microbe; and a second light source configured for emitting a second light having a second wavelength, different from said first wavelength, suitable for disrupting said photosensitive defense mechanism; a controller for selectively powering said plurality of light sources in a plurality of modes to emit emitted light from said light system, said plurality of modes comprises at least a first mode and a second mode, wherein said emitted light is white light in at least one of said first mode or said second mode.