Abstract: A system and a method for operating a lighting device may include a transmission device and an optional communication unit. The transmission device may be configured to wirelessly transmit a radio signal with identification data specific to the transmission device of the lighting device via at least two radio channels. The transmitted radio signal transmitted via a respective one of the at least two channels may include channel data with respect to the respective one of the radio channels. In a non-limiting embodiment, the transmission device is a beacon.

Abstract: A light fixture may include a casing and a support assembly configured to support and move the casing. The light fixture may include a light source assembly housed inside the casing and configured to generate visible light radiation of different colours. The light fixture may further include a control device configured to control the light source assembly based on the position or the movement of the casing or based on a parameter correlated to the position or the movement of the casing.

Abstract: A method for driving one or more electrically powered light sources, such as LED modules, may include applying a pulse-width-modulated signal thereto having a pulse-repetition frequency and a duty-cycle, the duty-cycle being selectively variable in order to vary the intensity of light emitted by the light source or light sources. To counter the occurrence of temporal light artefacts, or TLAs, the method may include frequency modulating the pulse-width-modulated signal (VPWM) by varying the pulse-repetition frequency thereof around a certain value between a lower frequency value and a higher frequency value, thus giving rise to a signal with combined FM/PWM modulation.

Abstract: A light device may include a printed circuit board having at least one conductive section. An LED may be electrically connected and fixed on a conductive section of the printed circuit board by means of a soldered connection. The printed circuit board may also include a coating-type insulating layer and/or the conductive section has an edge. The fixing region of the LED is connected to a discharge space by means of an outlet, so that during the production process, melted solder can flow off in a defined manner. The arrangement and/or embodiment of the outlet is such that in a preferred direction of movement of the LED is developed in order to position same in a defined manner.

Abstract: A circuit arrangement for connecting a plurality of LED modules in parallel comprises a positive pole terminal and a negative pole terminal for connecting a driver, a positive pole terminal line for electrically connecting the positive pole terminal to the modules, a negative pole terminal line for electrically connecting the negative pole terminal to the modules, a plurality of positive pole terminal contacts for electrically connecting the positive pole terminal line to anode terminal contacts of the modules, and a plurality of negative pole terminal contacts for electrically connecting the negative pole terminal line to cathode terminal contacts of the modules.

Abstract: A method for the redundant transmission of data by means of light-based communication may include a data stream to be transmitted that is converted into symbols. This data stream is converted from bipolar symbols into multiple partial data streams having e.g. unipolar-positive symbols. The partial data streams are converted into multiple semi-redundant signals that are then transmitted to the receiver via multiple light-based channels. In the receiver, the received signals are converted back again analogously to when they were sent, in order to obtain the original data stream again.

Abstract: A luminaire and an illumination system are disclosed. In an embodiment a luminaire includes at least one light-emitting semiconductor chip having a main emission side and a reflector having a reflection side facing the main emission side, the reflection side being a freeform different from a circle, an ellipse, a parabola or a hyperbola when seen in cross-section, wherein a base line of the reflector runs through the main emission side and a local height of the reflection side is measured against the base line, wherein a local focal length of the reflection side is increased along the local height, concerning ray bundles coming in parallel with the base line from an exterior of the luminaire during operation, and wherein local heights do not have a common focal point.

Abstract: A conversion element, an optoelectronic component, an arrangement and a method for producing a conversion element are disclosed. In an embodiment an arrangement includes a conversion element having a wavelength converting conversion material, a matrix material in which the conversion material is embedded and a substrate on which the matrix material with the embedded conversion material is directly arranged, wherein at least one condensed sol-gel material, and a laser source configured to emit primary radiation during operation, wherein the conversion element is arranged in a beam path of the laser source, wherein the conversion element is mechanically immovably mounted with respect to the laser source, and wherein the primary radiation of the laser source is dynamically arranged to the conversion element.

Abstract: A lighting apparatus for show-business or entertainment sector comprises a light-radiation generator for projecting a lighting beam towards a lighting space that includes one or more undesired lighting zones. A motorization causes the lighting beam to scan the lighting space as a function of scanning-control signals as received by the lighting apparatus. Driving circuitry is provided, configured to control emission of the lighting beam, as well as processing circuitry configured to sense the scanning-control signals received and the scanning position of the lighting beam of the light-radiation generator. As a result of the detection of received scanning-control signals that can lead the lighting beam to being brought into the undesired lighting zone, the processing circuitry acts on the motorization and/or on the driving circuitry of the light-radiation generator, containing projection of the lighting beam directed towards the undesired lighting zone and preventing possible risks of a photobiological nature.

Abstract: A multi-COB-LED lighting module includes a submount; and a plurality of clusters of LED-chips that emit light radiation in respective emission bands, wherein each LED-chip cluster includes a plurality of LED-chips arranged on the submount by chip on board technology and emit light radiation in a respective emission band, and at least two LED-chips of at least a first LED-chip cluster each borders with a plurality of LED-chips belonging to one or more clusters of LED-chips different from the first LED-chip cluster and connect one to the other by at least a wire bond that extends above one or more of the adjoining LED-chips.

Abstract: An optical-effect light may include a LIDAR system for detecting objects. The optical-effect light may be controlled based on one or more parameters of the detected object. The optical-effect light may include at least one radiation source configured to emit light and at least one acquisition unit configured to acquire data pertaining to the object(s). The light may be controlled based on the acquired data.

Abstract: An installation such as, for example, a box or cabinet for horticultural applications includes a lighting space between a lighted plane and a lighting plane parallel to the lighted plane, with side walls that are at least partly light-reflective. The illuminated plane may be defined by the upper surface of a plant culture medium. A set of light radiation sources, e.g. LEDs, arranged centrally relative to the lighting plane projects light radiation towards the lighted plane in the direction of a radiation emission axis. The set of light radiation sources emits light radiation with a distribution of illuminance projected towards the lighted plane, wherein the lighted plane is non-uniform and gradually decreases as a function of the angle relative to the aforesaid radiation emission axis, wherein the reflection of the radiation on the side walls facilitates uniform illuminance at the lighted plane.

Abstract: A method for controlling at least one wireless network access point in a building may include detecting whether a wireless communication device is connected to at least one wireless network access point and/or whether a person is present using a group of presence detectors. An illumination system may include at least one wireless network point and/or the group of presence detectors. An activated network access point may remain activated when the wireless network access point is connected to a wireless communication device and/or when a person is present. A network access point may be automatically deactivated when the wireless network access point is not connected to a wireless communication device and/or when a person is not present. A deactivated network access point may be automatically reactivated when the wireless network access point is connected to a wireless communication device and/or when a person is present. Combinations thereof are also possible.

Abstract: A method for operating a beacon may include repeatedly emitting an identification number. The identification information is encrypted multiple times in a different manner by a one-way function and is emitted during the repeated emission in a differently encrypted form.

Abstract: A cathode material for use in a high-pressure discharge lamp contains a matrix based on tungsten having a tungsten content of greater than or equal to 95% by weight, tungsten carbide, and oxides and/or predominantly oxidic phases of one or more emitter elements from the group of rare earth metals, Hf, and Zr. The cathode material additionally contains predominantly carbidic phases of the one or more emitter elements from the group of rare earth metals, Hf, and Zr. A high-pressure discharge lamp would contain such a cathode composed of the above cathode material.

Abstract: Lighting devices with lighting means, transmitting device for transmitting an electromagnetic data signal and energy buffer for current supply of the transmitting device are to be protected from exhaustive discharge. Thereto, an activation device is provided, by which the transmitting device can be activated from an energy-saving mode, in which the transmitting device is switched off, into an operating mode, in which the transmitting device is switched on for operationally transmitting the electromagnetic data signal.

Abstract: A phosphor and a method for making the phosphor are disclosed. In an embodiment a phosphor for emission of red light includes Sr(SraCa1-a)Si2Al2N6:Eu, wherein x is 0.8<x?1, wherein between 0.1% and 5% inclusive of the Sr, Ca and/or Sr/Ca lattice sites are replaced by Eu, wherein the parameter value a is between 0.6 and 1.0 inclusive, wherein the phosphor has a structure comprising (Si/Al)N4 tetrahedra arranged in a 3D network, in which layers in an a-c plane are linked in a b-direction, and wherein pure Sr positions and positions having a mixed Sr/Ca population are intercalated between the network, layer by layer.