Abstract: A retrofit lamp (310) is provided. The retrofit lamp comprises a connector (311) for mounting the lamp at an automotive headlight; a body (312) extending from the connector along an axis (313); and a plurality of light emitting diodes (314) arranged at the body. The light emitting diodes are arranged along the axis and adapted to emit light (331, 332) laterally with respect to the axis. The retrofit lamp further comprises a reflective element (315) arranged at an end of the arrangement of light emitting diodes opposite to the connector. The reflective element is adapted to reflect some light (332) emitted by the light emitting diodes. Additionally—the extension of the arrangement of light emitting diodes along the axis is shorter than a light emitting area (114) of a reference replaceable headlight bulb (110), and—the reflective element (315) is configured to establish a virtual prolongation (340) of the arrangement of LEDs.

Abstract: The invention relates to a lighting system (1) comprising a lighting device (6) having a first USB-PD connector and a power providing unit, which is preferentially a component of a power providing device (4) and which is operable in different operational modes. A second USB-PD connector is electrically connected with the power providing unit and adapted to be connected with the first USB-PD connector for generating a USB-PD connection (5) via which power and optionally also data are receivable by the lighting device. A connection feature value being indicative of a feature of the connection is determined and the operational mode of the power providing unit is controlled depending on the determined connection feature value. This allows for a reaction on the current connection situation. For instance, if the connection feature value indicates a relatively low thermal coupling, the power providing unit may provide less power.

Abstract: According to an aspect, a connector plug (11) for a lighting device (12) is provided. The connector plug comprises a fastening arrangement (13) for mechanically coupling the lighting device to the connector plug, and an electronic contact (15) arranged to transfer power to, and communicate data with the lighting device coupled to the connector plug. Further, the connector plug comprises a heat sink (17) having a heat reception interface (18) arranged to receive heat from the lighting device coupled to the connector plug and a heat dissipation interface arranged to dissipate at least some of the heat received via the heat reception interface. The present aspect is based on a concept of utilizing the connector plug for dissipating heat from the lighting device, whereby the overall heat dissipation from the lighting device increases, which promotes a longer life time of the lighting device.

Abstract: The invention relates to a lighting system (1) comprising a lighting device (6) having a first USB-PD connector and a power providing unit, which is preferentially a component of a power providing device (4) and which is operable in different operational modes. A second USB-PD connector is electrically connected with the power providing unit and adapted to be connected with the first USB-PD connector for generating a USB-PD connection (5) via which power and optionally also data are receivable by the lighting device. A connection feature value being indicative of a feature of the connection is determined and the operational mode of the power providing unit is controlled depending on the determined connection feature value. This allows for a reaction on the current connection situation. For instance, if the connection feature value indicates a relatively low thermal coupling, the power providing unit may provide less power.

Abstract: The invention relates to an interface device for supplying power to a variable number of loads, which are configured to be coupled to the interface device by means of a supply line and which are configured to communicate with the interface device, to a system comprising such interface device and one or more loads, to a corresponding method for supplying power and to a corresponding software product. A particular feature of the present invention is that the interface device functions as an intermediate between an USB power source and the loads connected to the interface device by supplying power while being flexible to both sides, i.e. to the supplying side as well as to the load side, in allowing for a flexible number of loads to be coupled to the interface device (i.e. to be supplied by the interface device with power) and in also providing a negotiation with the power supply depending on the necessary power.

Abstract: In a method of lighting at least part of a space, a light emitting diode (LED) string is used. The LED string comprises a first LED segment and at least one further LED segment, which are connected in series, each LED segment comprising at least one LED. The LED string is powered by a rectified AC voltage. The first LED segment is powered when the rectified AC voltage is above a first voltage level, and the first LED segment and the further LED segment are powered when the rectified AC voltage is above a second voltage level higher than the first voltage level. The first LED segment is arranged to radiate light to a first volume of the space, and the further LED segment is arranged to radiate light to a second volume of the space, the first volume being at least partly different from the second volume. The first volume may at least partly overlap the second volume.

Abstract: The invention relates to an interface device for supplying power to a variable number of loads, which are configured to be coupled to the interface device by means of a supply line and which are configured to communicate with the interface device, to a system comprising such interface device and one or more loads, to a corresponding method for supplying power and to a corresponding software product. A particular feature of the present invention is that the interface device functions as an intermediate between an USB power source and the loads connected to the interface device by supplying power while being flexible to both sides, i.e. to the supplying side as well as to the load side, in allowing for a flexible number of loads to be coupled to the interface device (i.e. to be supplied by the interface device with power) and in also providing a negotiation with the power supply depending on the necessary power.

Abstract: The present application relates to a light emitting diode module comprising: a light source device (11), a cover (10) for said light source device (11), the cover (10) being arranged to connect to an optical device (21); wherein said cover (10) comprises a heat conducting part (24, 34) which has an at least one order of magnitude higher thermal conductivity than the remaining part of the cover (10) and which is arranged to thermally connect said light source device (11) with said optical device (21). The present application further relates to a corresponding cover for a light source device (11) in a light emitting diode module (1).

Abstract: A device comprises an image handling module for protecting an image of a scene captured by a camera. The image handling module is configured detect, in association with the image, a watermark signal having been embedded in light illuminating the scene at a respective geographic location. Further, the image handling module is configured to lookup the detected watermark signal in a privacy database, and based thereon to selectively inhibit use of the image.

Abstract: A method of determining a distance from a first luminaire (22) to a second luminaire (22) comprises causing a light source co-located with the second luminaire to emit light directed towards a reflecting surface (A). The method further comprises detecting a level of reflected light from the reflecting surface using a sensor co-located with the first luminaire (22), and accessing a reflectance value determined for the reflecting surface (A). The method further comprises modifying the level of reflected light to take into account the accessed reflectance value, and using the modified measure to provide a measure of a distance between the first and second luminaires.

Abstract: A retrofit lamp (310) is provided. The retrofit lamp comprises a connector (311) for mounting the lamp at an automotive headlight; a body (312) extending from the connector along an axis (313); and a plurality of light emitting diodes (314) arranged at the body. The light emitting diodes are arranged along the axis and adapted to emit light (331, 332) laterally with respect to the axis. The retrofit lamp further comprises a reflective element (315) arranged at an end of the arrangement of light emitting diodes opposite to the connector. The reflective element is adapted to reflect some light (332) emitted by the light emitting diodes. Additionally—the extension of the arrangement of light emitting diodes along the axis is shorter than a light emitting a area (114) of a reference replaceable headlight bulb (110), and—the reflective element (315) is configured to establish a virtual prolongation (340) of the arrangement of LEDs.

Abstract: According to an aspect, a connector plug(11) for a lighting device (12) is provided. The connector plug comprises a fastening arrangement (13) for mechanically coupling the lighting device to the connector plug, and an electronic contact (15) arranged to transfer power to, and communicate data with the lighting device coupled to the connector plug. Further, the connector plug comprises a heat sink (17) having a heat reception interface (18) arranged to receive heat from the lighting device coupled to the connector plug and a heat dissipation interface arranged to dissipate at least some of the heat received via the heat reception interface. The present aspect is based on a concept of utilizing the connector plug for dissipating heat from the lighting device, whereby the overall heat dissipation from the lighting device increases, which promotes a longer life time of the lighting device.

Abstract: In a method of lighting at least part of a space, a light emitting diode (LED) string is used. The LED string comprises a first LED segment and at least one further LED segment, which are connected in series, each LED segment comprising at least one LED. The LED string is powered by a rectified AC voltage. The first LED segment is powered when the rectified AC voltage is above a first voltage level, and the first LED segment and the further LED segment are powered when the rectified AC voltage is above a second voltage level higher than the first voltage level. The first LED segment is arranged to radiate light to a first volume of the space, and the further LED segment is arranged to radiate light to a second volume of the space, the first volume being at least partly different from the second volume. The first volume may at least partly overlap the second volume.

Abstract: A method of determining a distance from a first luminaire (22) to a second luminaire (22) comprises causing a light source co-located with the second luminaire to emit light directed towards a reflecting surface (A). The method further comprises detecting a level of reflected light from the reflecting surface using a sensor co-located with the first luminaire (22), and accessing a reflectance value determined for the reflecting surface (A). The method further comprises modifying the level of reflected light to take into account the accessed reflectance value, and using the modified measure to provide a measure of a distance between the first and second luminaires.

Abstract: A headlight unit 10, 110 is described including a reflector 12 and a lamp mounting cavity 20. A lamp 30, 130 is mounted within the lamp mounting cavity 20. The lamp mounting cavity 20 is sealed by a cap 40 of partly flexible material. The cap 40 is provided as a heat spreader and dissipation element in thermal contact with the lamp 30.

Abstract: A lighting assembly (100) configured to be mechanically and electrically connected to a socket (150), the lighting assembly comprising a lighting module (102) comprising a light source (106), electrical contacting means (108) electrically connected to the light source and a heat spreader (110) in thermal contact with the light source; and a connector (104) being rotatable in relation to the lighting module (102). The connector comprises connector locking means (119) for locking the lighting assembly to a socket through interaction with receiving locking means comprised in the socket when the lighting module is axially inserted into the socket and the connector is rotated relative to the lighting module and the socket, thereby bringing the electrical contacting means (108) into contact with corresponding receiving contacting means (122) comprised in the socket.

Abstract: In a method of lighting at least part of a space, a light emitting diode (LED) string is used. The LED string comprises a first LED segment and at least one further LED segment, which are connected in series, each LED segment comprising at least one LED. The LED string is powered by a rectified AC voltage. The first LED segment is powered when the rectified AC voltage is above a first voltage level, and the first LED segment and the further LED segment are powered when the rectified AC voltage is above a second voltage level higher than the first voltage level. The first LED segment is arranged to radiate light to a first volume of the space, and the further LED segment is arranged to radiate light to a second volume of the space, the first volume being at least partly different from the second volume. The first volume may at least partly overlap the second volume.

Abstract: LED light source comprising a string of LED loads (LED1-LED4) supplied by a rectified mains voltage. The number of LED loads carrying current is increased as the momentary amplitude of the rectified mains voltage increases, and is decreased as the momentary amplitude of the rectified mains voltage decreases. The order in which the LED loads start carrying a current and the order in which the LED loads stop carrying a current is reversed for each half period of the mains.

Abstract: The present application relates to a light emitting diode module comprising: a light source device (11), a cover (10) for said light source device (11), the cover (10) being arranged to connect to an optical device (21); wherein said cover (10) comprises a heat conducting part (24, 34) which has an at least one order of magnitude higher thermal conductivity than the remaining part of the cover (10) and which is arranged to thermally connect said light source device (11) with said optical device (21). The present application further relates to a corresponding cover for a light source device (11) in a light emitting diode module (1).

Abstract: A lighting module (1) having a connection end (2) for connection to a lamp holder (3), and a light output end (4) for outputting light, wherein the lighting module (1), at the light output end (4), is provided with a mechanical interface comprising first (6) and second (7) protrusions extending in a direction parallel with a longitudinal axis (13) of the lighting module and being configured to interact with corresponding protrusions (6?,7?) on an identical mechanical interface to transfer at least one of a rotational force and a pulling force to the lighting module (1), so that a device (1?) provided with such an identical mechanical interface can be used as a tool for connecting/disconnecting the lighting module (1). An advantage is that it is possible to utilize one lighting module as a tool to connect/disconnect another lighting module from a lamp holder.