Abstract: A lighting device comprises a planar array of LEDs comprising a set of parallel LED strips and an optical sheet extending over and parallel to the plane of the array of LEDs. The optical sheet comprises an interleaved pattern of parallel optical strips and pass through strips and it is movable relative to the array of LEDs to create different output beam characteristics.

Abstract: A lighting device comprises a planar array of LEDs comprising a set of parallel LED strips and an optical sheet extending over and parallel to the plane of the array of LEDs. The optical sheet comprises an interleaved pattern of parallel optical strips and pass through strips and it is movable relative to the array of LEDs to create different output beam characteristics.

Abstract: A control circuit, of a control loop, for a lighting driver. The lighting driver is adapted to controllably connect an electronic ballast to an LED light source or lamp. The control circuit comprises a biasing circuit having an adjustable impedance. A tuning circuit adjusts the impedance of the biasing circuit so as to tune a parameter of a frequency response of the control loop and thereby of the lighting driver.

Abstract: A control device (3) for controlling a lighting system (19) over a communication system comprising one or more networks, the lighting system comprising at least one lighting device (1a, 1b, 1c). The control device comprises: multiple transmitters (4a, 4b, 4c, 4d, 4e) each for transmitting to the lighting system via a different respective interface (7a, 7b, 16, 17, 51) of the communication system; A and a controller (95) configured to use each of a plurality of the transmitters to transmit a respective message to the lighting system via a different respective path, each path comprising a different respective one of the interfaces and not Bluetooth RFID tag Wi-Fi ZigBee Cellular any of the others. Each of the messages invokes feedback from the lighting system to the control device if received and/or if executed by the lighting system.

Abstract: A control circuit, of a control loop, for a lighting driver. The lighting driver is adapted to controllably connect an electronic ballast to an LED light source or lamp. The control circuit comprises a biasing circuit having an adjustable impedance. A tuning circuit adjusts the impedance of the biasing circuit so as to tune a parameter of a frequency response of the control loop and thereby of the lighting driver.

Abstract: The invention provides a lighting device (1) comprising a beam shaping assembly (3240) comprising two light transmissive beam shaping elements (3250), each beam shaping element (3250) having a first end window (3251) and a second end window (3252), larger than the first end window (3251), with the beam shaping element (3250) tapering from the second end window (3252) to the first end window (3251), wherein the two light transmissive beam shaping elements (3250) are configured with the second end windows (3252) facing each other, and wherein an optical filter element (1021,2021) is configured between the two light transmissive beam shaping elements (3250), and wherein the optical filter element (1021,2021) comprises a dichroic filter, wherein the beam shaping assembly may be configured between two light transmissive elements or between a light source and a light transmissive element.

Abstract: A controller for granting a user input device control of a controllable device including a receiver arranged for receiving a first sound signal recorded within a first time frame by a first sound sensor and receiving a second sound signal recorded within a second time frame by a second sound sensor located at the user input device. The controller further includes a processor arranged for determining a level of similarity between the first sound signal and the second sound signal. The processor is further arranged for granting the user input device control of the controllable device if a sufficient level of similarity has been determined. This enables the controller to determine if the user input device is in the same space as the first sound sensor, and it allows the creation of a control space of the controllable device based on the characteristics of the first sound sensor.

Abstract: A printed circuit board assembly (1) and a method for manufacturing a printed circuit board assembly (1) are provided. The method comprises: providing a substrate (2), printing a circuit pattern on the substrate (2) thereby forming a bottom layer (4a) of an uncured conductive material (7) and a top layer (4b) of an insulating material (8), arranging at least one electronic component (5), having at least one electrical connection part (6), on the top layer (4b) of the circuit pattern, the at least one electrical connection part (6) of the at least one electronic component (5) forming at least one electrical connection (9) with the bottom layer (4a) comprising the uncured conductive material (7), and, after arranging said at least one electronic component (5) on the top layer (4b), curing the conductive material (7) and the insulating material (8). By this method, the conductive material (7) mechanically secures said at least one electronic component (5) to the substrate (2).

Abstract: A controller 100 for granting a user input device 102 control of a controllable device 104 is disclosed. The controller 100 comprises a receiver 106 arranged for receiving a first sound signal recorded within a first time frame by a first sound sensor 110. The receiver 106 is further arranged for receiving a second sound signal recorded within a second time frame by a second sound sensor 112 located at the user input device 102. The controller 100 further comprises a processor 108 arranged for determining a level of similarity between the first sound signal and the second sound signal, wherein the first time frame and the second time frame at least partially overlap. The processor 108 is further arranged for granting the user input device 102 control of the controllable device 104 if a sufficient level of similarity has been determined.

Abstract: An illumination device (100) for illuminating an at least partially reflective surface (S) viewable by an observer (O) is disclosed. The illumination device (100) comprises a light-emitting module (110, 120) adapted to generate polarized light having a selected direction of polarization. Further, the illumination device (100) is adapted to illuminate the at least partially reflective surface (S) with the polarized light, and is adjustable so as to effect adjustment in the direction of polarization of light illuminating the at least partially reflective surface (S) in relation to the orientation of a plane of incidence of light incident on the at least partially reflective surface. An indicator (130) is arranged such as to provide guidance for the observer (O) how to adjust the direction of polarization of light illuminating the at least partially reflective surface (S). Thereby, the extent of light reflection from the at least partially reflective surface (S) may be adjusted.

Abstract: A control device (3) for controlling a lighting system (19) over a communication system comprising one or more networks, the lighting system comprising at least one lighting device (1a, 1b, 1c). The control device comprises: multiple transmitters (4a, 4b, 4c, 4d, 4e) each for transmitting to the lighting system via a different respective interface (7a, 7b, 16, 17, 51) of the communication system; A and a controller (95) configured to use each of a plurality of the transmitters to transmit a respective message to the lighting system via a different respective path, each path comprising a different respective one of the interfaces and not Bluetooth RFID tag Wi-Fi ZigBee Cellular any of the others. Each of the messages invokes feedback from the lighting system to the control device if received and/or if executed by the lighting system.

Abstract: A light emitting arrangement comprising two light emitting elements (32, 32a) arranged along a longitudinal direction of the light emitting arrangement, and at least one light guide (34) each partly covering the light emitting surface of a first of the light emitting elements and having an entrance surface (35) arranged to receive incident light from the first light emitting element (32) and an exit surface (36) arranged to emit at least a portion of the incident light received by the entrance surface. The light guide is arranged such that the exit surface (36) is located between the first light emitting element (32) and a second light emitting element (32a) and is oriented to emit light in the general lighting direction. The light guide will distribute light emitted by the first light emitting element to more than one location, as if it was emitted of several weaker light emitting elements.

Abstract: A method for manufacturing a non-planar printed circuit board assembly (1) is disclosed. The method comprises providing a planar formable substrate (2) for supporting a conductive material (3) and at least one electronic component (4), printing a circuit pattern of an uncured conductive material (3) on the planar substrate (2), forming the substrate (2) and the uncured conductive material (3) into a non-planar shape, and curing the conductive material (3), wherein the substrate (2) comprises a metal sheet and an electrically insulating coating (2b) arranged between the metal sheet and the conductive material (3).

Abstract: The invention relates to a DC power distribution system (1). The DC power distribution system comprises a track (2) with electrical conductors for distributing DC power for powering purposes and for position determination purposes and a position determination system (15) for determining the position of an electrical device (3, 13) like a luminaire, which is attached to the track, based on a voltage measured on the track. The DC power distribution system can therefore provide positioning information regarding the position of the electrical device along the track, which may be useful, for instance, for commissioning purposes.

Abstract: Lighting device (1) comprising a plurality of LEDs (2a-2h) and a movable member (3) comprising a plurality of translucent segments (S1-S8) arranged such that the light from the LEDs (2a-2h) is transmitted therethrough. At least one of the translucent segments (S1-S8) comprises a wavelength conversion material. The lighting device (1) further comprises a control unit (5) for adjusting the color of the light emitted from the lighting device by controlling the power supplied to each one of the LEDs (2a-2h) in correspondence to the movable member (3), and by controlling the total power supplied to the lighting device (1) independently from the power supplied to each one of the plurality of LEDs (2a-2h).

Abstract: A method for manufacturing a non-planar printed circuit board assembly (1) is disclosed. The method comprises providing a planar formable substrate (2) for supporting a conductive material (3) and at least one electronic component (4), printing a circuit pattern of an uncured conductive material (3) on the planar substrate (2), forming the substrate (2) and the uncured conductive material (3) into a non-planar shape, and curing the conductive material (3), wherein the substrate (2) comprises a metal sheet and an electrically insulating coating (2b) arranged between the metal sheet and the conductive material (3).

Abstract: A printed circuit board assembly (1) and a method for manufacturing a printed circuit board assembly (1) are provided. The method comprises: providing a substrate (2), printing a circuit pattern on the substrate (2) thereby forming a bottom layer (4a) of an uncured conductive material (7) and a top layer (4b) of an insulating material (8), arranging at least one electronic component (5), having at least one electrical connection part (6), on the top layer (4b) of the circuit pattern, the at least one electrical connection part (6) of the at least one electronic component (5) forming at least one electrical connection (9) with the bottom layer (4a) comprising the uncured conductive material (7), and, after arranging said at least one electronic component (5) on the top layer (4b), curing the conductive material (7) and the insulating material (8). By this method, the conductive material (7) mechanically secures said at least one electronic component (5) to the substrate (2).

Abstract: An illumination device (100) for illuminating an at least partially reflective surface (S) viewable by an observer (O) is disclosed. The illumination device (100) comprises a light-emitting module (110, 120) adapted to generate polarized light having a selected direction of polarization. Further, the illumination device (100) is adapted to illuminate the at least partially reflective surface (S) with to effect the polarized light, and is adjustable so as adjustment in the direction of polarization of light illuminating the at least partially reflective surface (S) in relation to the orientation of a plane of incidence of light incident on the at least partially reflective surface. An indicator (130) is arranged such as to provide guidance for the observer (O) how to adjust the direction of polarization of light illuminating the at least partially reflective surface (S). Thereby, the extent of light reflection from the at least partially reflective surface (S) may be adjusted.

Abstract: A light emitting arrangement comprising two light emitting elements (32, 32a) arranged along a longitudinal direction of the light emitting arrangement, and at least one light guide (34) each partly covering the light emitting surface of a first of the light emitting elements and having an entrance surface (35) arranged to receive incident light from the first light emitting element (32) and an exit surface (36) arranged to emit at least a portion of the incident light received by the entrance surface. The light guide is arranged such that the exit surface (36) is located between the first light emitting element (32) and a second light emitting element (32a) and is oriented to emit light in the general lighting direction. The light guide will distribute light emitted by the first light emitting element to more than one location, as if it was emitted of several weaker light emitting elements.

Abstract: An optical system (100) is provided, having at least one light emitting module (110) adapted to emit light, and at least one reflector (120) arranged relatively to a corresponding one of the at least one light emitting module (110) so as to receive at least some light emitted by the at least one light emitting module (110). A polarizer (130) is provided so as to transmit light having at least a first polarization direction and to reflect light having at least a second polarization direction. The light emitting module (110) comprises at least one light emitting surface portion (114) and at least one corresponding reflective surface portion (112) which are arranged point symmetrically to each other with respect to a point (116) coinciding with an optical axis (A) of the at least one reflector (120) such that at least some of the light reflected by the polarizer (130) impinges on the reflective surface portion (112).