Abstract: A light emitting arrangement is provided, comprising: an array of light-emitting elements (20) arranged on a carrier (10) having an inner surface (11) facing an interior space at least partially enclosed by said carrier, and an outer surface (12), and wherein the light emitting elements (20) are arranged to emit light towards the interior space, and a tubular wavelength converting member (30) having an envelope body comprising a light-receiving inner envelope surface (31) facing an interior space partially enclosed by said wavelength converting member, and an outer envelope surface (32), the wavelength converting member (30) being arranged adjacent said carrier (10) to receive light emitted by said light emitting elements (20) via said light-receiving inner envelope surface (31). The light emitting arrangement offers improved cooling and enables high lumen output without overheating.

Abstract: A light emitting module includes at least one LED mounted on a reflective base and surrounded by reflective walls to form a cavity. A partially diffusive layer containing a phosphor is mounted above the LED with a gap therebetween. Some of the light emitted by the phosphor is backscattered toward the LED, base, and walls. The LED absorbs a significant amount of the light, while the reflective base and walls efficiently reflect over 90% of the light back toward the phosphor layer for exiting the module. Various equations are provided that allow the designer to select an optimal gap between the LED and the partially diffusive layer to maximize light extraction efficiency out of the diffusive layer. The optimal gap range for maximizing light extraction efficiency is a product of LED largest linear length, LED surface area, base area, wall area, and reflective coefficients of the various elements.

Abstract: A lighting device is disclosed, which comprises a light transmitting element extending along a perimeter such that a hollow is defined by the light transmitting element. The light transmitting element comprises a light in-coupling surface adapted to couple light emitted by at least one light emitting element into the light transmitting element, and a light out-coupling surface adapted to couple light out of the light transmitting element. The lighting device is combined with a light reflecting envelope arranged to enclose the lighting device such that light emitted from the light out-coupling surface is reflected at an inner surface of the envelope. Thereby a reflected image may be produced, having an appearance resembling a candle flame.

Abstract: A light emitting module 150 emits light through a light exit window 104 and comprises a base 110, a solid state light emitter 154, 156 and a partially diffusive reflective layer 102. The base 110 has a light reflective surface 112 which faces towards the light exit window 104. The light reflective surface 112 has a base reflection coefficient Rbase which i defined by a ratio between the amount of light that is reflected by the light reflective surface and the amount of light that impinges on the light reflective surface. The solid state light emitter 154, 156 emits light of a first color range 114, comprises a top surface 152, 158 and has a solid state light emitter reflection coefficient R_SSL which is defined by a ratio between the amount of light that is reflected by the solid state emitter 154, 156 and the amount of light that impinges on the top surface 152, 158 of the solid state light emitter 154, 156. The light exit window 104 comprises at least a part of the partially diffusive reflective layer 102.

Abstract: A light emitting module (150) emits light through a light exit window (104) and comprises a base (110), a solid state light emitter (154, 158) and a partially diffusive reflective layer (102). The base (110) has a light reflective surface (112) which faces towards the light exit window (104). The light reflective surface (112) has a base reflection coefficient Rbase which is defined by a ratio between the amount of light that is reflected by the light reflective surface and the amount of light that impinges on the light reflective surface. The solid state light emitter (154, 158) emits light of a first color range (114), comprises a top surface (152, 158) and has a solid state light emitter reflection coefficient R_SSL which is defined by a ratio between the amount of light that is reflected by the solid state emitter (154,156) and the amount of light that impinges on the top surface (152, 158) of the solid state light emitter (1154, 156).

Abstract: The present invention relates to a method for providing a reflective coating (114) to a substrate (104) for a light-emitting device (112), comprising the steps of: providing (201) a substrate (104) having a first surface portion (116) with a first surface material and a second surface portion (106, 108) with a second surface material different from the first surface material; applying (202) a reflective compound (401) configured to attach to said first surface material to form a bond with the substrate (104) in the first surface portion (116) that is stronger than a bond between the reflective compound (401) and the substrate (104) in the second surface portion (106, 108); curing (203) said reflective compound (401) to form a reflective coating (114) having said bond between the reflective coating (114) and the substrate (104) in the first surface portion (116); and subjecting said substrate (104) to a mechanical treatment with such an intensity as to remove (205) said reflective coating (114) from said secon

Abstract: A light emitting module 150 emits light through a light exit window 104 and comprises a base 110, a solid state light emitter 154, 156 and a partially diffusive reflective layer 102. The base 110 has a light reflective surface 112 which faces towards the light exit window 104. The light reflective surface 112 has a base reflection coefficient Rbase which i defined by a ratio between the amount of light that is reflected by the light reflective surface and the amount of light that impinges on the light reflective surface. The solid state light emitter 154, 156 emits light of a first color range 114, comprises a top surface 152, 158 and has a solid state light emitter reflection coefficient R_SSL which is defined by a ratio between the amount of light that is reflected by the solid state emitter 154, 156 and the amount of light that impinges on the top surface 152, 158 of the solid state light emitter 154, 156. The light exit window 104 comprises at least a part of the partially diffusive reflective layer 102.

Abstract: The invention relates to a rechargeable battery based on lithium metal as anode. The rechargeable lithium metal battery according to the invention comprises an electrolyte and also chlorine and fluorine containing compounds: The battery according to the invention has, in particular, a strongly improved Coulomb efficiency of the metallic lithium. In addition, due to gel formation, a much safer system is formed than with liquid electrolyte.