Abstract: The invention relates to a method for operating a transmission device of a lighting device comprising an illumination device, wherein the transmission device is arranged in or immediately on the illumination device and wirelessly emits a radio signal with identification signals that are specific to the transmission device, wherein the radio signal is emitted according to exactly one predetermined radio standard, wherein the radio signal contains the specific identification data at least in two data formats that are different from each other.

Abstract: Techniques for determining an actual position of a portable device are disclosed. In an embodiment, a two-tier triangulation and wireless beacon-enabled luminaire detection approach is implemented. An estimated position of a device is determined using wireless (e.g., wireless beacon) triangulation based on a signal parameter of a signal received from a wireless access point. The field of view of the portable device may be used to estimate positions of luminaires proximate the portable device. The actual position of the luminaires may be determined from the estimated position by querying a database. A second triangulation may be performed using the known position of the luminaires to determine the position of the portable device with respect to the actual position of the luminaire.

Abstract: A horticultural luminaire includes a first and second horticultural light sources to provide growth lighting to a plant at a first and second wavelengths. A control unit provides first lighting control signals to the first horticultural light source to modulate the first growth lighting and provides second lighting control signals to the second horticultural light source to modulate the second growth lighting. A LiDAR sensor is connected to the lighting control unit to receive the first and second control signals, and having optics to detect reflected first and second growth lighting to determine the distance from plant to sensor and a biometric property of the plant from the received first and second control signals and detected first and second reflected second growth lighting. In some implementations the LiDAR sensor and first and second horticultural light sources are integrated into the horticultural luminaire.

Abstract: A phosphor and a lighting device are disclosed. In an embodiment a lighting device includes a first phosphor disposed in a beam path of the primary radiation source, wherein the first phosphor has the formula Sr(SraM1?a)Si2Al2(N,X)6:D,A,B,E,G,L, wherein element M is selected from Ca, Ba, Mg or combinations thereof, wherein element D is one or more elements selected from Mn, Ce, Pr, Nd, Sm, Eu, Tb, Dy, Ho, Er, Tm, alkali metals or Yb, wherein element A is selected from divalent metals different than those of the elements M and D, wherein element B is selected from trivalent metals, wherein element E is selected from monovalent metals, wherein element G is selected from tetravalent elements, wherein element L is selected from trivalent elements, wherein element X is selected from O or halogen, and wherein a parameter a is between 0.6 and 1.0.

Abstract: Lighting systems and associated controls that can provide active control of lighting device settings, such as on/off, color, intensity, focal length, beam location, beam size and beam shape. In some examples, lighting systems may include eye tracking technology and sensor feedback for one or more lighting device settings and may be configured with depth perception and cavity or incision recognition capability through image or video processing.

Abstract: In various embodiments, an optical arrangement is provided. The optical arrangement includes a carrier plate, on which at least one light source is arranged, at least one optical element for directing the radiation of the at least one light source, and at least one sleeve, which is connected to the light source and is intended to hold the optical element. At least one of the sleeve is configured in such a way that the light source and the optical element are respectively arranged therein at least in sections, or the optical element can be positioned exactly with respect to the light source.

Abstract: The present disclosure relates to different techniques of controlling an agricultural system, as for example a controlled agricultural system, an agricultural light fixture and a method for agricultural management. Furthermore, the disclosure relates to an agricultural system, which comprises a plurality of processing lines for growing plants of a given plant type, wherein a first processing line in the plurality of processing lines is configured to move a first plurality of plants through the agricultural system along a route; and apply a first growth condition to the first plurality of plants to satisfy a first active agent parameter for the first plurality of plants.

Abstract: An illumination device includes a light source, a micromirror array having micromirror actuators, switchable in each case between an on state and an off state, an optical unit, and an optical sensor unit. The light is guided onto the array and proportionally at a respective one of the actuators in an on tilt position is reflected to an illumination application, and in an off tilt position is reflected to the optical sensor unit. The device is configured such that a first actuator, which is in an on state in the on tilt position, is brought to the off tilt position for a first test interval, and a second actuator, which is in an off state in the off tilt position, remains in the off tilt position for the first test interval. A radiation power incident on the sensor unit during the first test interval is detected by the sensor unit.

Abstract: Various embodiments provide a bearing element for an electrode rod in a lamp stem. The bearing element includes an envelope configured in order to extend along a longitudinal axis of the electrode rod. The envelope has a polygonally shaped cross section at least in sections.

Abstract: A luminaire, comprising: a luminaire rear wall for mounting to a wall or ceiling, a printed circuit board, fitted with a plurality of light-emitting diodes and having a connecting cable, as a light-emitting means, and a connecting clamp connected to the connecting cable and to which a supply cable is able to be clamped. A spacer is fixedly mounted to the luminaire rear wall, to which the printed circuit board is releasably attached, with a free space being formed between the printed circuit board and the luminaire rear wall. The whole connecting cable, or a majority thereof, and the connecting clamp are arranged in the free space.

Abstract: Various embodiments may relate to a lighting system, including at least one lighting module which has a printed circuit board and at least one lighting means arranged on the printed circuit board, and at least one electrical component for operating the lighting means of the lighting module. The electrical component is electrically connected to the lighting module. The electrical component is directly fastened to the lighting module.

Abstract: A fastening device for fastening lighting devices to T-shaped profiles of a false ceiling comprises a base wall on which the lighting device may be fastened. The fastening device also comprises two longitudinal side walls rigidly connected along the longitudinal sides of the base wall and a plurality of fastening elements arranged along the longitudinal sides of the base wall, wherein the fastening elements can be folded in the direction of the base wall, to engage the fastening device with the T-shaped profile. The fastening device also comprises at least two spacer elements arranged between the base wall and a respective longitudinal side wall to provide a gap between the side walls and the base wall. This gap provides a passage for the electrical connections between the lighting device and a power supply source located above the false ceiling.

Abstract: A method for analyzing an environment of a mobile terminal by emission of unique identification data associated with at least one lighting device, by a light-based communication of the at least one lighting device, and determination of location coordinates of the mobile terminal in accordance with the identification data collected using an optical sensing unit of the mobile terminal with respect to the at least one lighting device, on the basis of the stored location coordinates of the at least one lighting device, each correlated with a respective installation position of the at least one lighting device, wherein provision of a respective sensor signal by at least one environmental signal sensor, extraction of environmental data from the respective sensor signal, and storage of the environmental data in accordance with the location coordinates of the mobile terminal, causing existing environmental data to be updated.

Abstract: A current sensing circuit for sensing an intermittent current having a Zero Current Period includes: an amperometric transformer having a primary winding for the current to be sensed to flow therethrough and a secondary winding, a sensing resistor coupled to the secondary winding of the transformer, an offset capacitor coupled with sensing resistor between the sensing resistor and ground, and a switch element acting across the coupling of the sensing resistor and the offset capacitor, the switch element being electrically conductive during the zero current period or a fraction thereof.

Abstract: A lighting system includes an optical unit. The optical unit includes at least one light guide, which is provided for at least one light source. The lighting system further includes a retaining frame for the optical unit, via which frame the optical unit is fastened to a printed circuit board including the at least one light source, and a spacer for positioning the optical unit, which spacer is arranged between the retaining frame and the printed circuit board, the spacer having at least one continuous bearing opening in order to receive the at least one light guide. At least one guide recess is formed on the edge of the at least one bearing opening and at least one support face is provided on the edge, on which support face the light guide introduced into the bearing opening can be supported.

Abstract: A converter circuit, comprising: a supply node and an output node of the converter circuit, a half-bridge arrangement coupled to the supply node and including a pair of electronic switches alternatively switchable between conductive and non-conductive states with a drive node therebetween, a transformer with a primary winding driven by the drive node and a secondary winding including two portions with a center tap node coupled to the output node of the converter circuit and an inductive component. The inductive component including two magnetically coupled winding halves with a respective center tap node, the inductive component being coupled to the ends of the secondary winding of the transformer with the respective center tap node coupled to the output node of the converter circuit.

Abstract: A fastening device for fastening lighting devices to T-shaped profiles of a false ceiling. The fastening device may include a shaped flat body of electrically insulating material having conductive tracks embedded therein. The conductive tracks may have first ends and second ends that protrude from opposite ends of the flat body. The conductive tracks may be configured for establishing an electrical connection between a lighting device and a power supply source located above the false ceiling.

Abstract: A conversion device includes a carrier body, a conversion body, which is secured on the carrier body, for converting electromagnetic radiation, a conduction track, which is applied on the conversion body, for monitoring the conversion body, and a contact element applied on the carrier body. The contact element has a first layer construction including at least a first contact layer and a second contact layer including mutually different materials. The conduction track has a second layer construction including at least a first conduction layer and a second conduction layer comprising mutually different materials. The contact element is electrically connected to the conduction track. At least one of the first conduction layer or the second conduction layer are electrically conductive and the thickness of said conductive layers is chosen such that an electrical impedance of the conduction track lies in a predetermined range.

Abstract: A lighting control apparatus for producing control signals or cues for controlling operating parameter of one or more controlled lighting devices, including a learning machine configured for performing: a supervised learning phase, wherein, as a function of a first set of audio and/or video files coupled with a first set of control signals, the machine produces mapping rules between the audio and/or video files and the control signals of these first sets; an unsupervised learning phase wherein the machine receives a second set of audio and/or video files and produces, from the second set of audio and/or video files, a second set of control signals as a function of the mapping rules. The learning machine may be configured to carry out a reinforced learning phase with the production of an evaluation ranking of the mapping rules and the possible elimination of mapping rules.

Abstract: There is provided a circuit assembly for time-discretizing an analog electrical signal, including an input terminal supplying the analog electrical signal, an output terminal providing a time-discrete signal depending on the supplied analog electrical signal and a sample and hold circuit, which comprises a capacitor connected to the output terminal, an electronic switching unit connected between the input terminal and the output terminal and a control unit controlling the switching unit, wherein the switching unit provides an off-state due to an off-signal of the control unit and an on-state due to an on-signal of the control unit, wherein the switching unit provides an electrical resistance in the on-state, which cooperates with the capacitor and comprises a preset resistance value, such that the sample and hold circuit provides a low-pass with preset cut-off frequency. There is further provided a detection device and lighting device with such a circuit assembly.