Abstract: A reflector for light radiation sources, the reflector taking the form, for example, of a cup centered around a main axis with a bottom opening for a source of light radiation, the reflector including a cup-shaped base portion extending from the bottom opening to an outer rim, and an annular portion surrounding the outer rim. The annular portion may be telescopically coupled to the base portion and may be moveable with respect to the base portion along the main axis in order to vary the length over which the annular portion extends along the main axis with respect to the outer rim of the base portion.

Abstract: Lighting device, usable for example with LED light sources, comprises a bowl-shaped body having a base surface with a plurality of mounting studs projecting from the base surface, together with one or more boards for the mounting of light radiation sources, provided with holes for the passage of respective mounting studs. The board has pairs of mounting locations for light radiation sources, each pair being arranged on opposite sides of a respective hole so as to be located on opposite sides of the stud which extends through said respective hole. A plurality of reflectors is provided in order to project the light radiation from the device. The reflectors each have an inlet opening for the light radiation and are capable of being mounted on the mounting studs selectively in one of at least two opposite mounting positions in which the inlet opening is placed at one of said mounting locations.

Abstract: A device for mounting lighting sources on a substrate includes a channel-like mounting frame provided with fixing formations for fixing on said substrate, said mounting frame defining a cavity for receiving said lighting source with said lighting source resting on said substrate, a slider member which can be positioned in said cavity of said mounting frame to urge said lighting source toward said substrate; said slider member being slidable with respect to said mounting frame between an insertion position and a locking position, wherein said mounting frame and said slider member bear complementary engagement formations cooperating in a ramp-like manner to force said slider member and the lighting source urged thereby toward said substrate when said slider member is advanced from said insertion position toward said locking position.

Abstract: A lighting device includes a tray-like housing with a base wall, at least one light radiation source on the base wall of the housing, having electrical contact pads in an opposite position from the base wall of the housing, and a circuit board on the base wall of the housing with electrically conductive lines extending on the face of the board opposite from the base wall of the housing, with respective electrical contact pads placed in positions facing the electrical contact pads of the light radiation source. At least one optical element is provided, with a light input to collect light radiation at the light radiation source and one or more light outputs to project light radiation from the lighting device. The optical element has an electrically non-conductive base wall which urges the light radiation source or sources and the circuit board toward the base wall of the housing.

Abstract: A method of placing on a mounting substrate light radiation sources arranged in successive sequences wherein each sequence includes light radiation sources from different bins having respective light emission characteristics and wherein the sequential order of recurrence of the light radiation sources of the various bins is repeated over the sequences, may include placing the light radiation sources on the mounting substrate in at least two juxtaposed rows, wherein each row includes light radiation sources arranged in a zigzag pattern to produce an chessboard-like array of light radiation sources.

Abstract: A circuit for driving a plurality of light sources via a current generator, wherein the light sources are grouped into a plurality of light source sets wherein the driver circuit comprises a plurality of inductive elements, a plurality of switches adapted to selectively connect each light source set in series with one of the inductive elements, and a control circuit configured for driving the switches, so that during a first operation time interval, each light source set is connected in series with a respective first inductive element, and during a second operation time interval, each light source set is connected in series with a respective second inductive element, wherein the respective second inductive element is separate from the respective first inductive element.

Abstract: A lighting assembly includes: a heat sink having a mounting surface for a light source; a light source board having said light source thereon, said light source board being arranged against said mounting surface and having an outer perimeter edge, and a drive board carrying drive circuitry for said light source, said drive board being fixed onto said heat sink with said light source board sandwiched therebetween, said drive board having an aperture with an inner edge complementary to said outer edge of said light source board, whereby said light source is left uncovered by said drive board, and wherein: said inner edge of said drive board has an inwardly protruding frame formation with said outer perimeter edge of said light source board abutting against said frame formation, and said light source board has a thickness whereby said drive board and said mounting surface have a clearance therebetween.

Abstract: Lighting device, usable for example with LED light sources, comprises a bowl-shaped body having a base surface with a plurality of mounting studs projecting from the base surface, together with one or more boards for the mounting of light radiation sources, provided with holes for the passage of respective mounting studs. The board has pairs of mounting locations for light radiation sources, each pair being arranged on opposite sides of a respective hole so as to be located on opposite sides of the stud which extends through said respective hole. A plurality of reflectors is provided in order to project the light radiation from the device. The reflectors each have an inlet opening for the light radiation and are capable of being mounted on the mounting studs selectively in one of at least two opposite mounting positions in which the inlet opening is placed at one of said mounting locations.

Abstract: A method for passing an electrical cable through a hole in a housing of a unit of electrical equipment is provided. The method may include: fitting onto the cable a tubular, mushroom-shaped male member comprising a stem with a threaded portion and a portion with enlarged head; inserting into the hole the cable having the male member fitted thereon extending through said hole with said portion with enlarged head abutting against the periphery of the hole externally to the housing and said threaded portion protruding inside the housing; and retaining said male member in the hole by coupling with said threaded portion that protrudes inside the housing an annular female member in the form of a nut co-operating with the periphery of the hole inside said housing to counter the movement of the female member with respect to the housing.

Abstract: A lighting assembly comprising a base body configured as a heat sink (18) having a front surface (18a), a board (14) carrying a light radiation source (12) applied on the front surface of the heat sink, and a fixing element (20) mounted on the front surface of the heat sink with the board arranged therebetween. The fixing element includes a window (22) which leaves at least partly uncovered the light radiation source, such window having side walls (220) which surround the light radiation source and spread outward to form a reflector for the light radiation.