Abstract: The invention provides a method for producing a 3D item by depositing 3D printable material, wherein the 3D printable material comprises core material and 3D printable shell material. The core material is one or more of (i) reflective, (ii) transmissive, (iii) absorbing, and (iv) luminescent for light having a wavelength in the visible wavelength range. The 3D printable shell material is transmissive for the wavelength in the visible wavelength range. A printed core-shell layer has a layer width (W) and a layer height and a first aspect ratio AR1, wherein AR1=W/H and wherein AR1>1. A cross-sectional plane of the core-shell layer comprises the layer width (W) and the layer height, and the core (330) provides a core cross-section having a first dimension (A1), which is the longest dimension of the core cross-section, and a second dimension (A2) perpendicular to the first dimension (A1), providing a second aspect ratio AR2, wherein AR2=A1/A2, wherein 2=<AR2=<10,000; and wherein AR2/AR1>=1.

Abstract: The invention provides a light generating system (1000) comprising one or more light generating devices (100), a first luminescent material element (1210), a second luminescent material element (1220), first polarization optics (410), second polarization optics (420), and third optics (430), wherein: (a) the one or more light generating devices (100) are configured to generate device light (101); (b) the first luminescent material element (1210) comprises a first luminescent material (210) configured in a light receiving relationship with one or more of the one or more light generating devices (100) and configured to convert at least part of the received device light (101) into first luminescent material light (211); (c) the second luminescent material element (1220) comprises a second luminescent material (220) configured in a light receiving relationship with one or more of the one or more light generating devices (100) and configured to convert at least part of the received device light (101) into second l

Abstract: A light emitting diode, LED, filament (100, 200, 420, 430, 510), comprising an array of a plurality of light emitting diodes (110, 250, 260, 270,410, 415), LEDs, wherein the LED filament comprises a center axis, A, and elongates in a meandering shape in a plane, P, is provided. At least a first segment (120, 220) of the LED filament, which elongates along the center axis, A, has first width, W1, and is configured to emit light with a first intensity, I1, and a first color temperature, CT1. At least a second segment (130, 230) of the LED filament, which elongates along the center axis, A, has second width, W2, and is configured to emit light with a second intensity, I2, and a second color temperature, CT2. For the at least one first segment and the at least one second segment, at least one of I1?I2, CT1?CT2, and W1?W2 is fulfilled.

Abstract: The present disclosure relates to a light emitting diode (LED) filament arrangement (100) which comprises an elongated, flexible LED filament (110) having a plurality of LEDs arranged along the elongation of the filament. The arrangement further comprises a bending unit (120) having a body in which a channel (121) is formed. A portion of the LED filament is arranged within the channel of the bending unit, and the bending unit is at least partially curved and adapted to induce a bend in the LED filament.

Abstract: The invention provides a light generating device (1000) comprising an LED filament (100), wherein the LED filament (100) comprises a support (105), a set (107) of solid state light sources (110), and an encapsulant (160), wherein: (I) the LED filament (100) has a length axis (108) having a first length (L1); (II) the solid state light sources (110) are arranged over the first length (L1) of the LED filament (100) on the support (105), wherein the solid state light sources (110) are configured to generate light source light (111); (III) the encapsulant (160) encloses at least part of each of the solid state light sources (110) of the set (107) of solid state light sources (110), wherein the encapsulant (160) comprises a luminescent material (200) configured to convert at least part of the light source light (111) into luminescent material light (201); (IV) the light generating device (1000) is configured to generate device light (1001) comprising one or more of (i) the light source light (111) and (ii) the lum

Abstract: The invention provides a light generating device (1000) configured to generate device light (1001), wherein the light generating device (1000) comprises a first light source (110), a first luminescent material (210), a second source (120) of second light (121), and a third light source (130), wherein: the first light source (110) is configured to generate blue first light source light (111) having a first peak wavelength ?1 selected from the spectral wavelength range of 440-475 nm, wherein the first light source (110) is a first laser light source (10); the first luminescent material (210) is configured to convert at least part of the first light source light (111) into first luminescent material light (211) having an emission band having wavelengths in one or more of (a) the green spectral wavelength range and (b) the yellow spectral wavelength range, wherein the first luminescent material (210) comprises a luminescent material of the type A3B5O12:Ce, wherein A comprises one or more of Y, Gd, Tb and Lu, and

Abstract: The present disclosure relates to a light-emitting diode, LED, filament (100) including a filament core. The filament core comprises a flexible elongated carrier (102) having a first side, a plurality of LEDs (104) arranged on the first side, and an encapsulant (106) embedding at least said plurality of LEDs and at least a portion of the carrier. At least one alignment member (108) protrudes from the filament core at an angle from an elongation of the filament core.

Abstract: An LED filament lighting device comprising, at least one LED filament, each including a plurality of LEDs mounted on an elongated substrate, at least one light scattering element, each including a light scattering shell surrounding a transparent volume, each light scattering element being arranged to encompass at least one LED of at least one LED filament, and configured to scatter light emitted from the encompassed LED(s), thereby forming a first LED set including at least one LED encompassed by said at least one scattering element, and a second LED set including a plurality of LEDs not encompassed by said at least one scattering element, wherein a light distribution from said first LED set combines with a light distribution from said second LED set to provide an improved total light distribution from said LED filament lighting device.

Abstract: The present invention relates to a light emitting device (100). The light emitting device comprising a carrier (130).

Abstract: The invention provides a 3D printed object (210) and a method of manufacturing such an object (210) by means of fused deposition modelling.

Abstract: A lighting device (1) is provided. The lighting device (1) comprises a housing (10) and a flexible elongated carrier (20) having a first side (20a) and a second side (20b). The elongated carrier (20) comprises a plurality of first sections (21), each first section (21) comprising a plurality of solid state lighting elements (25) arranged on the first side (20a) of the elongated carrier (20). Each first section (21) is arranged at a distance (d1) from a surface (15) of the housing. The elongated carrier (20) further comprises a plurality of second sections (22). Each second section (22) is at least in part attached to the surface of the housing (15). The first sections (21) and the second sections (22) are alternatingly arranged in a succession along a longitudinal extension of the elongated carrier (20).

Abstract: A method for producing a 3D item (1) by means of fused deposition modelling, the method comprising a 3D printing stage comprising layer-wise depositing an extrudate (321) comprising 3D printable material (201), to provide the 3D item (1) comprising 3D printed material (202), wherein the 3D item (1) comprises a plurality of layers (322) of 3D printed material (202), and an opening (405) in the 3D printed material (202), the opening (405) having an opening edge (410) that is at least partly defined by one or more interruptions (1410) in a subset (1322) of one or more layers (322) of the plurality of layers (322), wherein the method comprises providing each interruption (1410) by 3D printing a layer (322) of the subset (1322) with oppositely arranged turns (415), wherein each turn (415) connects a first layer part (3221) and a second layer part (3222), the first layer part (3221) and the second layer part (3222) forming legs of a U-turn (435), wherein, for each turn (415), the first layer part (3221) has a first

Abstract: The invention provides a luminescent element (1000) comprising a solid luminescent body (100), wherein the solid luminescent body (100) comprises a luminescent material (200), wherein the luminescent material (200) is configured to generate luminescent material light (201) upon excitation with light having a wavelength where the luminescent material (200) is excitable, wherein the solid luminescent body (100) comprises luminescent body faces (120), wherein the luminescent element (1000) further comprises one or more reflective elements (300) associated to at least one luminescent body face (120), wherein the one or more reflective elements (300) are metallic, and wherein a surface coverage of the at least one luminescent body face (120) with the one or more reflective elements (300) is selected from the range of 5-40%.

Abstract: The present invention relates to a light source (100) comprising a substrate (110) having a slit (112) and a sheet formed heat sink structure (120) comprising a plurality of LEDs (130), wherein the plurality of LEDs are arranged at a surface (122) of the heat sink structure and wherein the heat sink structure is mounted through the slit such that a LED comprising portion (124) of the heat sink structure, extending from a first side (114) of the 5 substrate, and a heat-emitting portion (126) of the heat sink structure, extending from a second side (116) of the substrate being opposite to the first side, are formed. A lighting system comprising such a light source is also presented.

Abstract: The invention provides a light generating system (1000) comprising a light generating device (100), a luminescent body (200), and first optics (410), wherein: •the light generating device (100) is configured to generate device light (101); wherein the light generating device (100) comprises a laser; •the luminescent body (200) comprises a luminescent material (210), wherein the luminescent material (210) is configured to convert at least part of the device light (101) into luminescent material light (211), and wherein the luminescent body (200) is transmissive for at least part of the luminescent material light (211); •the first optics (410) are transmissive for at least part of the device light (101) and reflective for at least part of the luminescent material light (211), wherein the first optics (410) comprise a primary optic surface (411) having a first surface area A1, wherein the primary optic surface (411) is configured in a light receiving relationship with the light generating device (100); •the lumi

Abstract: The present invention relates to a color tunable and/or color temperature tunable LED filament (20, 22, 24), said LED filament comprising an elongated carrier (220), said elongated carrier comprising a first major surface (222) and a second major surface (224) arranged opposite to said first major surface, a plurality of LEDs (210) arranged in at least one linear array on said first surface of said elongated carrier, wherein the plurality of LEDs includes LEDs of different colors and/or different color temperatures, a first elongated transparent or substantially transparent layer (230) covering the plurality of LEDs on the first major surface and also at least partly covering said first major surface, and a first elongated light scattering layer (240), arranged to at least partially cover said first transparent or substantially transparent layer.

Abstract: A light emitting device (1) comprising at least one LED filament (2) comprising a flexible substrate (3) and a plurality of LED light sources (4) arranged on the flexible substrate (3), and an encapsulation (5a, 5b) encapsulating the plurality of LED light sources (4) and at least a part of one side of the flexible substrate (3), where the at least one LED filament (2) comprises at least one knot (6) in the form of intentional complication in cordage of the at least one LED filament (2), and where the intentional complication in cordage is any one of a fastening made by looping the at least one LED filament (2) on itself or together with a further LED filament and tightening it, and an intentional complication in cordage in which the at least one LED filament (2) is interlaced with at least one further LED filament at right angles to one another.

Abstract: A LED filament including a linear array of LEDs arranged on a carrier substrate, wherein the linear array is divided into two separate longitudinal sections, a first longitudinal section including only LEDs configured to emit white light, and a second longitudinal section including only LEDs configured to emit color controllable light. The present invention suggests confining the color LEDs to the second longitudinal section of the array, so that the first longitudinal section of the array is capable of emitting homogenous white light of a color temperature in the range of the LEDs in that section.

Abstract: The invention relates to a lighting device (1) comprising an LED strip (100) with an elongated carrier (110) having a first carrier surface (111) and an opposite second carrier surface (112), a plurality of light-emitting diodes (120) arranged on the second carrier surface (112), and a light-transmissive encapsulant (130) encapsulating the plurality of light-emitting diodes (120). The lighting device (1) is arranged to be mounted to a mounting surface (210) of an object (200). For this purpose, it comprises a first attachment component (150) arranged on a first outer surface (141) of the LED strip (100) and a second attachment component (160) arranged on a second outer surface (142) of the LED strip (100). The first and second attachment components (150; 160) are for attaching the lighting device (1) in first and second mounting orientations, respectively.

Abstract: A method for producing a 3D item by means of fused deposition modelling, the method comprising a 3D printing stage, wherein the 3D printing stage comprises layer-wise depositing 3D printable material (201) to provide the 3D item (1) comprising 3D printed material (202), wherein: (a) the 3D printable material (201) comprises 3D printable core material (1351) and 3D printable shell material (1361); the 3D item (1) comprises a core-shell layer (1322) of the 3D printed material (202), wherein the core-shell layer (1322) comprises (i) a core (330) comprising 3D printed core material (1352) and (ii) a shell (340) comprising 3D printed shell material (1362); wherein the shell (340) at least partly encloses the core (330); (b) the 3D printable core material (1351) is reflective or absorbing for a wavelength (21) in the visible wavelength range; and (c) the 3D printable shell material (1361) comprises shell particles (430) which are transmissive for the wavelength (21) and wherein at least part of a total number of sh