Abstract: A lighting fixture includes a first housing portion and a second housing portion. The first housing portion includes a base and a wall extending outwardly from substantially the perimeter of the base. A top portion of the wall includes one or more hinges extending outwardly therefrom. The second housing portion includes a front panel and a side panel extending outwardly from substantially the perimeter of the front panel. A top portion of the front panel includes at least one slot. The second housing is coupled to the first housing in an open position when the hinge is inserted into the slot and the front panel is disposed elevationally above the base. The second housing is coupled to the first housing in an operational position when the hinge is inserted into the slot and the front panel covers the base.

Abstract: An LED power supply (100) configured to detect a characteristic of an input signal, includes a Buck power factor control circuit (D1, U1, Q1, D2, L1, C1) being configured to receive an input signal, the input signal (VAC) being referenced to a power ground, and to output an output signal, the output signal (Vout) being referenced to an output ground, wherein the output ground is level shifted with respect to the power ground; and a controller (106) configured to output an LED drive signal, the controller referenced to the output ground, wherein the controller is configured to determine the characteristic of the input signal according to a switching time of the Buck power factor control circuit, the switching time of the Buck power factor control circuit being determined by the controller according to a switching signal referenced to the output ground.

Abstract: A lighting device capable of generating warm or neutral white light using blue light-emitting diodes (“LEDs”), red LEDs, and/or luminescent material that responds to blue LED emission is disclosed. The lighting device includes multiple first solid-state light-emitting structures (“SLSs”), second SLSs, and balancing resistor element. The first SLS such as a string of blue LED dies connected in series is able to convert electrical energy to blue optical light, which is partially turned into longer wavelength emission by the luminescent material. The second SLS such as a red LED die is configured to convert electrical energy to red optical light, wherein the second SLSs are connected in series. While the first SLSs and second SLSs are coupled in parallel, the balancing resistor element provides load balance for current redistribution between the first and second SLSs in response to fluctuation of operating temperature.

Abstract: An LED driver for an LED lamp, which also comprises an LED load. The LED driver is adapted to connect to an input source at a first and second terminal. The LED driver comprises a switching arrangement configured to enable a controller to control at least a magnitude and phase of the voltage between the first and second terminals. The phase of the voltage between the first and second terminals may be defined to control an amount of power that flows from the input source to power the LED lamp.

Abstract: A luminaire includes a housing (102) with an inner cavity a light source (122) mounted to an inner top surface of the housing. The luminaire also includes a door frame (104), wherein the door frame includes a first side rail (108), a second side rail (109), a third side rail (107), and a fourth side rail (110). The four side rails of the door frame define a light emitting opening for the luminaire. A film stack (116) is supported by the door frame and placed in the light emitting opening so that light from the light source passes through the film stack as it is emitted through the light emitting opening. The film stack (116) includes a diffuser film (129) and a photopolymer film (127). The photopolymer film (127) is embossed with optical structures that create a holographic pattern that appears to be three-dimensional.

Abstract: The present invention relates to a receiver-centric transmission system for IoT systems, such as lighting networks, with combo protocol radio chips that share a single radio front-end for two or more transmission protocols of different network technologies while preventing unacceptable performance degradations in one or both protocol modes. The receiver-centric approach allows implementation of two networks with acceptable performances on one single radio chip per node rather than requiring two radio chips per node.

Abstract: The present invention relates to an LED filament lamp (10) comprising a two-dimensional flexible printed circuit board (100), PCB, having a first and a second opposing connection end portions (110, 120). The two-dimensional flexible PCB (100) comprises a plurality of filaments lines (130a-d) extending from the first connection end portion (110) to the second connection end portion (120), wherein each filament line (130a) comprises an array of LEDs (130a1-130aN). The two-dimensional flexible PCB (100) is arranged in a cylinder shape by connecting the first and the second opposing connection end portions (110, 120) such that each (130a) of the plurality of filament lines (130a-d) is connected to another (130b) one of the plurality of filament lines (130a-d) thereby a spiral LED filament (150) is formed by the plurality of filament lines (130a-d).

Abstract: A method (400) of controlling a plurality of lighting units (112, 114) of a lighting system (100) is disclosed.

Abstract: A controller (110) for a lighting system (100) is provided. The controller is connectable to a plurality of light sources (120, 122) of different colors and/or different color temperatures, and to a user control element (130) configured to generate a user selected value from a range of user selectable values. The controller is configured to receive a change of the user selected value, and as a response to and corresponding to this change adjust a combined output of the plurality of light sources to produce a change in output color, color temperature and/or luminous flux of a combined light of the plurality of light sources. The change is such that, as function of the user selected value in separate first intervals of the user selectable values, the output color and/or color temperature is kept approximately constant while the luminous flux obtains a local minimum or local maximum in each first interval.

Abstract: The invention provides a light generating system (1000), comprising a plurality of light sources (10), an elongated luminescent body (100), and a body holder structure (2000), wherein: the plurality of light sources (10) are configured to provide light source light (11), wherein the light sources (10) are solid state light sources, wherein the plurality of light sources (10) are configured in a light source array (15); the elongated luminescent body (100) has a length (L) and a width (W), wherein the elongated luminescent body (100) comprises luminescent material (120) configured to convert at least part of light source light (11) into luminescent material light (8), wherein the elongated luminescent body (100) and the light source array (15) are configured parallel; the body holder structure (2000) comprises an elongated slit (205) for hosting the elongated luminescent body (100), wherein the elongated slit (205) has a cavity wall (1205) defining the elongated slit (205) and a slit opening (1206), wherein

Abstract: A linear light fixture can include a tray and an optical device, where the tray includes a circuit board receiving section, first and second tray side sections, and a retention feature, where the first and second tray side sections include an optical device receiving feature. The optical device can include an optical section, first and second optical device side sections, and a complementary retention feature, where the first and second optical device side sections include a tray mating feature that is configured to be disposed within the optical device receiving feature, where the retention feature and the complementary retention feature are disengaged when the tray mating feature is being received by the optical device receiving feature, and where the retention feature and the complementary retention feature are engaged after the tray mating feature is received by the optical device receiving feature to fixedly secure the optical device to the tray.

Abstract: The present disclosure relates to a light-emitting diode (LED) filament (100) comprising a carrier (120) having a first side on which a plurality of LEDs is arranged. The plurality of LEDs comprises a LED of a first type (111) arranged to emit light having a first peak wavelength in the range 400-500 nm, a LED of a second type (112) arranged to emit light having a second peak wavelength in the range 500-570 nm, and a LED of a third type (113) arranged to emit light having a third peak wavelength in the range 590-680 nm. An encapsulant (130) encapsulates at least the LED of the first type, and at least partly the LEDs of the second type and the third type. The encapsulant (130) comprises a wavelength converting material having a higher absorption coefficient for the first peak wavelength than for the second peak wavelength and the third peak wavelength. The wavelength converting material has an emission band extending at least from 500 to 650 nm.

Abstract: A system (1) for controlling message routing within a wireless network, which comprises a plurality of nodes (1,11-15), is configured to determine a first subset of the plurality of nodes. The first subset comprises one or more devices (12,15) that are assigned a radio frequency-based presence and/or location detection function. The system is further configured to determine a plurality of routes from a source node (1) to a destination node (12). At least one of the plurality of routes comprises one or more intermediate nodes (11,13,14,15). The system is further configured to select one of the plurality of routes based on how many of the intermediate nodes of each of the plurality of routes are part of the first subset of the plurality of nodes and transmit one or more messages to cause the wireless network to perform message routing according to the selected route.

Abstract: The invention provides a light generating device (1000) comprising (i) a plurality of n light sources (100), and (ii) an optical component (1200) comprising an array (200) of prismatic elements (300), wherein: (a) the plurality of n light sources (100) comprise a first subset of one or more first light sources (110) configured to generate collimated first light source light (111) and a second subset of one or more second light sources (120) configured to generate collimated second light source light (121), wherein n>2; (b) the array (200) of prismatic elements (300) is configured in a light receiving relationship with the n light sources (100), wherein the array of prismatic elements (300) comprises k1 parallel arranged first prismatic faces (201) and k2 parallel arranged second prismatic faces (202), wherein k1>2 and wherein k2>2, wherein the first prismatic faces (201) and the second prismatic faces (202) are not mutually parallel; (c) the first light sources (110) are configured to irradiate the f

Abstract: A device, system, and method protect circuits of a lighting device. The lighting device includes a current source generating a current and a first load and a second load receiving the current. The lighting device includes an inductor positioned between the current source and the first and second loads that balances the current powering the first and second loads. The lighting device includes a detector monitoring a voltage peak of the first 5 and second loads. The lighting device includes a voltage controller receiving a reading of the voltage peak from the detector and determining when the voltage peak is at least a voltage peak threshold. The voltage controller is configured to adjust a setting for the current generated by the current source based on the reading of the voltage peak.

Abstract: The invention relates to central controller (3) for remote communication with a plurality of network controllers, NC, (20) the plurality of NCs (20) being provided in communication nodes (2a, 2b, 2c, 2d) and being configured for near field communication with each other, the central controller (3) being configured to be in communicative connection with each NC of the plurality of NCs. The central controller (3) comprises a data processing device (32) configured to receive ID and position information and a list of communicable neighboring NCs from each NC (20), based on the received ID information, position information and lists of communicable neighboring NCs identify at least one NC of the plurality of NCs as providing accurate position information and use the thus identified NC as an anchor point NC (20a), and identify missing and/or position drifting NCs by analyzing the received ID and position information and lists of communicable neighboring NCs.

Abstract: Apparatus, methods and systems are disclosed related to negotiation mechanism among control devices (200, 200a, 200b, 200c, 200d) each having a dedicated hierarchy level configured to obtain DC current from the control network (100) with at least a power source (300, 300?) on the network (100). The control device (200, 200a) with a higher dedicated hierarchy level may request another control device (200b, 200c, 200d) with a lower dedicated hierarchy level to release current for its use, when the available current at the power source (300, 300?) is not sufficient.

Abstract: A system and methods are provided for group lighting interaction. A lighting infrastructure includes a plurality of simultaneously and independently controllable lighting devices. As various users request access to control the lighting infrastructure, the system and methods involve dynamically partitioning the lighting devices into subsets and then allocating each subset to a corresponding requesting user. The dynamic partitioning may be based on each user's respective location or the time each user requested access to control the lighting infrastructure.

Abstract: The invention provides a lighting device (1000) comprising (i) a light source (100) configured to generate light source light (101), wherein the light source (100) comprises a solid state light source, and (ii) a support (200) configured to support the light source (100), wherein the support (200) comprises a metal based thermally conductive material (201), wherein the lighting device (1000) further comprises (iii) a layered element (300), configured in physical contact with the support (200), wherein the layered element (300) comprises one or more layers (310), wherein the layered element (300) at least comprises an electrically insulating first layer (311), wherein at least part of the layered element (300) is configured between the light source (100) and the support (200) such that during operation part of the light source light (101) irradiates the layered element (300), wherein the layered element (300) comprises light reflective particles (410), wherein at least 50 wt.

Abstract: A control module (120,120a-b) for controlling a plurality of power switching elements (111a-d) arranged for controlling provision of power to one or more wireless network devices (125a-c); wherein the control module (120,120a-b) comprises a processor (122) arranged for: determining which one of the plurality of power switching elements (111a-d) the control module (120,120a-b) receives power through; determining a set of the plurality of wireless network devices (125a-c) which receives power via a first power switching element out of the plurality of power switching elements (111a-d); determining that the set includes all the wireless network devices which receive power via the first power switching element; determining operational state of each of the wireless network devices in the set; determining whether the control module (120,120a-b) receives power via the first power switching element; evaluating a first set of conditions; wherein the first set of conditions comprises that the control module (120,120a-b