Abstract: One general aspect includes a system for enhanced accent lighting within a vehicle interior, the system including: a memory configured to include one or more executable instructions and a processor configured to execute the executable instructions, where the executable instructions enable the processor to carry out the following steps: capturing an image of a user; and producing accent lighting in the vehicle interior based on the image.

Abstract: Examples of systems for forming cavity and a liquid liner are described. The system comprises a vessel and a rotating member positioned within the vessel and rotatable about an axis of rotation. The rotating member has an inner surface 5 curved with respect to the axis of rotation, an outer and plurality of fluid passages that each has an inboard opening at the inner surface and an outboard opening at the outer surface. The rotating member is filled with a liquid medium and a rotational driver rotates the rotating member such that when rotating the liquid medium at least partially fills the fluid passages forming liquid liner, defining the 10 cavity. The cavity formation system is used in a liquid liner implosion system with an implosion driver that causes the liquid liner to implode inwardly collapsing the cavity. The imploding liquid liner system can be used in plasma compression systems.

Abstract: The invention relates to a lighting system for at least one light-emitting means (24), in particular for light-emitting diodes, comprising a light fixture (22, 43, 61), in which the light-emitting means (24) and mechanical components like a housing, cooling element, reflector, etc. are located; comprising a convertor (23) for operating the light-emitting means (24); comprising an operating unit (10) having a charge storage (11), like a smart phone, for example, for changing a mode of operation of the lighting system (20), wherein in a first mode of operation, light is emitted across a first light exit surface by the lighting system (20), and in a second mode of operation, light is emitted across a second light exit surface, wherein the first light exit surface and the second light exit surface have different light emission characteristics.

Abstract: A driver comprises a front-end stage, a back-end stage, and an intermediate controller. The front-end stage comprises a front-end main circuit and a front-end controller, and is configured to rectify an AC input voltage from an external power supply and output a DC bus voltage through output terminals. The back-end stage comprises a buck circuit, and configured to receive the bus voltage from the front-end stage and output a desired DC drive voltage to a load according to an operating voltage of the load. The intermediate controller is configured to obtain a difference voltage signal indicative of an electric potential difference between the bus voltage and the drive voltage, and provide a feedback signal generated based on the difference voltage signal to the front-end controller. The front-end controller controls the front-end main circuit based on the feedback signal to change the bus voltage with change of the drive voltage.

Abstract: A lighting controller includes: an information acquiring unit configured to acquire music piece information including at least information on a beat position in music piece data; a lighting controller configured to control a lighting fixture with reference to a lighting-effect change point, a minimum unit of the lighting-effect change point being defined by the beat position; and an operation interlock control unit configured to apply, in response to a predetermined operation applied on a music piece reproduction apparatus configured to reproduce the music piece data as a music piece or a music piece reproduction controller configured to control the music piece reproduction apparatus, a predetermined lighting effect corresponding to the operation or a process executed by the operation to the control of the lighting fixture.

Abstract: A method of programming a respective rule for controlling lighting in each of one or more zones each being occupiable by a user. The method comprises: detecting that a user has actuated one or more actuators serving a zone presently occupied by the user; receiving a user selection through a user interface of a user terminal, to select one or more illumination sources arranged to illuminate the zone presently occupied by the user; and 5 based on this detection and user selection, automatically programming a respective rule into a memory in association with the one or more actuators, the rule specifying how the illumination emitted by the one or more selected illumination sources is to be controlled as a function of a subsequent instance of said user interaction.

Abstract: When a light scene comprises multiple colors of light, not all white light is suitable for matching the scene. A method is provided such that a white point is determined for each color in a set of colors, to create a set of white points. A single white point is then determined based on the set of white points. This allows, for example, a user to select a light scene (e.g. a romantic scene featuring red colors) for a living room, such that lighting devices contributing to the scene emit colored light. A functional lighting device (e.g. reading light) can then emit white light, determined according to the method, to provide more functional light (e.g. light suitable for reading) that matches the scene (e.g. warm white instead of cold white).

Abstract: The present disclosure provides an intelligent lighting control system. A first switch control circuit of a first lighting control module of a plurality of lighting control modules is actuated. The actuation is detected at each lighting control module in the plurality of lighting control modules. The light sensor in each lighting control module are polled by the respective processor in each lighting control module, to detect a change in a light level. The change in the light level detected by the respective lighting control module is transmitting, from each lighting control module. The lighting control modules that detected the change in the light level are catalogued into a 1st zone of one or more zones.

Abstract: In accordance with various embodiments, signals from a power supply are utilized to alter the perceived overall optical characteristic and/or the overall intensity of light emitted by an illumination system.

Abstract: A power converter for supplying an output voltage or an output current for powering an LED fixture is described, the power converter comprising: a primary circuit comprising: an input terminal for receiving a supply voltage; a primary winding connected to the input terminal; a secondary circuit comprising a secondary winding that is magnetically coupled with the primary winding for providing the output voltage or output current; the power converter further comprising: a sensor for measuring an electrical characteristic of the secondary circuit and; a detector configured to determine an electrical characteristic of the supply voltage based on the measured electrical characteristic of the secondary circuit.

Abstract: An apparatus is disclosed including: a light source; a Fresnel lens, and a lens array. The Fresnel lens is disposed upstream from the light source to collimate light output by the light source. The lens array is disposed upstream from the Fresnel lens to mix collimated light that is output from the Fresnel lens. The lens array includes a plurality of optical elements arranged on a substrate. Each optical element includes a respective first planar surface arranged to face towards a different respective portion of the Fresnel lens and a second convex surface arranged to face away from the Fresnel lens.

Abstract: A vehicle lighting device includes a plurality of circuit portions that have at least one light emitting element; and a control portion that is electrically connected to the plurality of circuit portions. The control portion detects an input voltage and connects the plurality of circuit portions in series when the detected input voltage exceeds a predetermined value and connects at least a part of the plurality of circuit portions in parallel when the detected input voltage is equal to or less than the predetermined value.

Abstract: A system for driving a light source includes a power converter and control circuitry coupled to the power converter. The power converter converts input power to an output voltage to power the light source. The control circuitry senses the output voltage and senses current of the light source. The control circuitry generates a control signal based on a voltage feedback signal indicative of a combination of said output voltage and said current of said light source, and controls the power converter by the control signal to adjust the output voltage.

Abstract: A light-emitting diode (LED) driver circuit monitors battery input current by way of a feedback resistor. The observed resistor voltage is provided to a regulator circuit which adjusts the current provided to the LED so as to hold the battery current substantially constant.

Abstract: A method and corresponding system is disclosed for use in a Networked Lighting Control System whereby communication costs (e.g. costs associated with LTE technologies), variable electric rates and traffic models are analyzed to maximize cost savings. In one example, the system consists of receiving cellular usage rates, electric usage rates, and generated traffic models or statistics to manage transmission and broadcast of usage rates to lighting poles. An apparatus associated with the lighting pole can then use this information to determine frequency of sending lighting commands to nearby poles.

Abstract: The invention describes an LED lighting arrangement (1) comprising an LED load (10) comprising a number of LEDs (100); input terminals (14hi, 14lo) for connection to a power supply (2) realised to provide an input voltage (UPS) at a primary input voltage level (VPS); a voltage boost module (11) realised to boost the input voltage (UPS) to a level above the primary input voltage level (VPS) on the basis of a dim level input signal (30); and a dimming module (12) realised to decrease the LED current (ILED) through the LED load (10) when the boosted voltage (Uboost) exceeds the primary input voltage level (VPS). The invention further describes a method of driving an LED lighting arrangement (1).

Abstract: The invention describes an LED tube lamp (1) realized for use with a high-frequency ballast (2), which LED tube lamp (1) comprises an LED arrangement (100); a driver (10) realized to drive the LED arrangement (100); and a first connecting terminal pair (11, 12) for connecting to first outputs (21, 22) of the high-frequency ballast (1) and a second connecting terminal pair (13, 14) for connecting to second outputs (23, 24) of the high-frequency ballast (2), and wherein the LED tube lamp (1) is characterized by a magnetically coupled inductor pair (L11, L12) comprising a first inductor (L11) in series with one terminal (11) of the first connecting terminal pair (11, 12) and a second inductor (L12) in series with the other terminal (12) of the first connecting terminal pair (11, 12). The invention further describes a LED tube lighting arrangement (3).

Abstract: A method for transmitting control commands in a system (100) of units (L1-L18) in a distributed arrangement, for example in a lighting system having luminaires in a distributed arrangement, involves at least some of the units (L1-L18) sending a received control command again in order to ensure that the control command is forwarded to all units (L1-L18). The control command contains a piece of information regarding an already past command transmission time, wherein each unit (L1-L18) takes the command transmission time that a received command contains as a basis for determining an individual waiting time (TTLind), after the expiry of which the command is executed by the unit (L1-L18).

Abstract: A plasma ion source includes a plasma generation unit comprising a plasma discharge chamber adapted to generate and sustain a plasma confined therein, a gas distribution unit adapted to deliver a working gas into an interior of the plasma discharge chamber, an ignition unit adapted to stimulate ionization of the working gas to generate a stable plasma, an electrode bias unit configured to apply an electrostatic potential to charged species in the plasma discharge, and an ion extraction unit configured to accelerate the charged species out of the ion extraction unit to generate a quasi-neutral plasma ion beam. The plasma ion source further includes a vacuum integrated matching network coupled with the plasma generation and electrode bias units. The matching network resides with the plasma generation and electrode bias units in a vacuum chamber during operation of the plasma ion source.

Abstract: A method of controlling an LED driver can include: generating a sinusoidal half-wave signal having the same frequency and phase as an AC input voltage by utilizing a phase-locked loop; generating a sampling signal of a peak value of an inductor current in a power stage circuit of the LED driver; generating a loop compensation signal in accordance with the sinusoidal half wave signal and a signal representing an output current of the power stage circuit; and generating a switching control signal for controlling the power stage circuit in accordance with the sampling signal and the loop compensation signal.