Abstract:
A light emitting device (10) comprising a central core element (11) and a plurality of LED light sources (12), the central core element (11) being a cylindrical element comprising a longitudinal direction and a cross-section in a direction perpendicular to the longitudinal direction, the cross section being shaped like a polygon with N sides, wherein N is equal to any one of 4 and an odd integer equal to or larger than 3, and wherein the plurality of LED light sources (12) are arranged on the N sides of the central core element in such a way that on at least one of the N sides the number of LED light sources equals n+1 and on the remaining of the N sides the number of LED light sources equals n, where n is an integer being equal to or larger than 1, and that for all numbers of the N sides with n LED light sources the difference between the smallest number of adjacent sides with n LED light sources and the largest number of adjacent sides with n LED light sources is always maximally 1.
Abstract:
The invention provides a lighting module (100) for use in a luminaire (200). The lighting module comprises a base (101) having a longitudinal axis (LA) which comprises an electrical connector (102) for connecting the lighting module (100) to a luminaire socket (201) of the luminaire (200). The lighting module (100) further comprises a driver unit (103) which comprises a driver circuit (104) which is electrically connected to the electrical connector (102). The lighting module (100) further comprises a light unit (105) which comprises at least one solid state light source (106) which is electrically connected to the driver circuit (104) and emits light. The lighting module (100) further comprises a heat sink (107) which removes heat from the at least one solid state light source (106). The heat sink (107) comprises an elongated hollow tube (108) which extends in the direction of the longitudinal axis (LA) and comprises a fluid inlet (109) and a fluid outlet (110), wherein the heat sink (107) is arranged between the driver unit (103) and the light unit (105).
Abstract:
A lighting device is disclosed. The lighting device comprises a light transmitting housing and a solid state light source carrier (1) arranged inside the housing. The carrier (1) includes a cylindrical support (2), which has two polygon base surfaces (2a, 2b) and a number of side surfaces (2c), and a flexible circuit strip (3) which has several solid state light sources (4) mounted thereon. The strip (3) is wrapped around the cylindrical support (2) so that the strip (3) extends at least once across each base surface (2a, 2b). A method for producing a lighting device is also disclosed.
Abstract:
The invention provides a lighting module (100) for use in a luminaire (200). The lighting module (100) comprises: a base (101) having a longitudinal axis (LA) and being constructed for rotatably connecting the base (101) to a socket (119) of a luminaire (200). The lighting module (100) further comprises a carrier (102) connected to the base (101) and extending from the base (101) in the direction of the longitudinal axis (LA). The lighting 5 module (100) further comprises a light unit (103) comprising a light source (104) and a heat sink (105) for dissipating thermal energy of the light source (104). The heat sink (105) extends in the direction of the longitudinal axis (LA) and is positioned at a non-zero distance D1 to the longitudinal axis (LA). The lighting module (100) further comprising a connecting construction (106) connecting the light unit (103) rotatably to the carrier (102) for rotating 10 the light unit (103) both around the carrier (102) and longitudinal axis (LA).
Abstract:
A lighting module (10) is disclosed, comprising a first carrier substrate (1) and a lighting unit (2, 4a-4d). The first carrier substrate (1) is bendable. The first carrier substrate (1) is bent so as to form a tubular structure (5), which is elongated and possibly at least in part hollow, and has a central, longitudinal axis (LA). At least a portion of one side of the first carrier substrate (1) at least in part constitutes an outer surface (6) of the tubular structure (5) exhibiting a plurality of surface portions (6a-6d), with the plurality of surface portions (6a-6d) configured such that at least some of the surface portions (6a-6d) each has a surface normal (7a, 7d) that is at an angle with respect to planes perpendicular to the central, longitudinal axis (LA) and passing through the respective surface portion (6a-6d). The lighting unit (2, 4a-4d) is coupled to the at least a portion of the one side of the first carrier substrate (1). By way of the geometrical configuration of the plurality of surface portions (6a- 6d), the lighting unit (2, 4a-4d) and possibly at least one light-emitting element (4a-4d) included therein may have a main direction of light emission that is at an angle with respect to a plane that is passing through the tubular structure (5) and that is substantially perpendicular to the central, longitudinal axis (LA) of the tubular structure (5).
Abstract:
The invention provides a lighting unit (10) comprising (a) a lighting device (100), (b) a support (200), and (c) an envelope (300), wherein: - the lighting device (100) is configured to provide lighting device light (101); wherein the lighting device (100) comprises a light source (110); - the support (200) is configured to support the light source (110); wherein the 5 support (200) comprises a laminate of layers, wherein the laminate of layers comprises an electrically conductive first layer, an electrically non-conducive second layer), and a third layer, wherein the first layer comprises copper, wherein the second layer comprises an epoxy-based material, and wherein the third layer comprises an oxygen barrier material; - the envelope (300) is configured to provide a sealed space (310) enclosing the 10 light source (110) and at least part of the support (200); wherein the envelope (300) comprises an envelope part (320) transmissive for the lighting device light (101), and wherein the sealed space (310) comprise a filling gas (330) comprising a thermally conductive gas, wherein the filling gas (330) at least comprises oxygen (O 2 ).
Abstract:
An elongated lighting device (1) having a first and a second suspension point (8, 8') for suspending the lighting device (1), comprising: a plastic housing (2) extending from the first suspension point (8) to the second suspension point (8'); a light source carrier (4) having one or more solid state light sources (6) mounted on a surface thereof, the carrier (4) being arranged along the housing (2) so that the one or more light sources (6) emit light into the housing (2). A wire (10) is arranged inside the housing (2) between the first and second suspension points (8, 8') so as to prevent the lighting device (1) from bending.
Abstract:
A light emitting device (10) comprising a central core element (11) and a plurality of n LED light sources (12), the central core element (11) being a cylindrical element comprising a circumferential surface (17), a longitudinal direction (L), a longitudinal axis (A) extending in the longitudinal direction and a cross-section in a direction perpendicular to the longitudinal direction, the cross section being shaped like a polygon with N sides (1, 2, 3, 4, 5, 6, 7, 8) of equal length, where n is different from N, the plurality of LED light sources (12) are arranged on the sides of the central core element in n intersection points between the circumferential surface of the central core element and n radial lines extending perpendicular to the longitudinal direction from the longitudinal axis to the circumferential surface in such a way that each of the n lines has the same angle β = 360°/n with the two adjacent lines of the n lines, and at least one LED light source of the plurality of LED light sources (12) are tilted in such a way that its central axis (16) is oriented in the direction of that of said n radial lines extending through that of the n points in which the at least one LED light source of the plurality of LED light sources is arranged.
Abstract:
The invention provides a lighting module (100) for use in a reflector which comprises at least one first light source (101) emitting first light (103) having a first light distribution (105) with a first main direction and at least one second light source (102) emitting second light (104) having a second light distribution (106) with a second main direction opposite to the first main direction. A base (107) connects the lighting module (100)5 to a luminaire socket. The base has a longitudinal axis (LA) extending from the base. The first light source (101) is positioned on the longitudinal axis and the second light source (102) is positioned at a non-zero distance to the longitudinal axis. The first main direction and the second main direction are substantially perpendicular with respect to the longitudinal axis.