Abstract: The invention provides a method for manufacturing a 3D item (10) with a fused deposition modeling 3D printer, the method comprising (a) providing a thermoplastic material (20), wherein the thermoplastic material (20) comprises a first polymer (21) of the semi-crystalline type, wherein the first polymer (21) has a glass temperature (Tg) and wherein the thermoplastic material (20) has a melting temperature (Tm); generating in a generation stage an intermediate 3D printed item (110) by printing the thermoplastic material (20), wherein the thermoplastic material (20) is heated to a temperature equal to or above the melting temperature (Tm), while maintaining during printing an ambient temperature (Ta) to the intermediate 3D printed item under construction below the glass temperature (Tg); and generating in an annealing stage said 3D item (10) by heating the intermediate 3D printed item (110) equal to or above the glass temperature (Tg).

Abstract: A light emitting diode, LED, filament arrangement (100), comprising at least one LED filament (110) comprising an array of a plurality of light emitting diodes, LEDs. The at least one LED filament (110) is of an elongated shape, and is at least partially extending along an axis, A. The at least one LED filament comprises at least one branch (120, 121) extending from the elongated LED filament (110) and is arranged at an angle, ?, to the axis A.

Abstract: A light emitting diode, LED, filament arrangement (100), comprising at least one LED filament (120) comprising an array of a plurality of light emitting diodes (125), LEDs, wherein the at least one LED filament comprises a first portion (130) having a first shape, wherein the first portion is configured to emit light of a first spectral distribution, S1, in a first spatial direction, D1, and a second portion (140) having a second shape, different from the first shape, and the second portion is configured to emit light of a second spectral distribution, S2, in a second spatial direction, D2, wherein the first spectral distribution, S1, is different from the second spectral distribution, S2, and the first spatial direction, D1, is different from the second spatial direction, D2.

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: 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) configured to generate one or more of UV and blue first light source light (111), wherein the first light source (110) is a first laser light source (10); a second light source (120) configured to generated green second light source light (121), wherein the second light source (120) is a second laser light source (20); a third light source (130) configured to generate red third light source light (131), wherein the third light source (130) is a third laser light source (30); a fourth light source (140) configured to generate blue fourth light source light (141), wherein the fourth light source (140) is a fourth laser light source (40); a first luminescent material (210) 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

Abstract: The present disclosure relates to a lighting device. The lighting device (100) comprises a first elongated light-emitting diode, LED, filament (110) and a second elongated LED filament (120). The lighting device further comprises an at least partially light-transmissive envelope (130), which at least partially envelops at least the first LED filament and the second LED filament, and a base (140) on which the at least partly light-transmissive envelope is mounted. The first LED filament is configured to emit light with a different color temperature than the second LED filament. Further, the second LED filament is at least partially curved such that it defines at least part of a contour of a volume (421). The first LED filament is arranged at least partially within the volume.

Abstract: There is provided a light emitting diode, LED, filament lamp (100) which provides LED filament lamp light (100?). The LED filament lamp (100) comprises at least one LED filament (101) which has a LED filament length (L) which extends from a first end (1003) to a second end (1004). The at least one LED filament (101) provides LED filament light (101) and comprises an array (102) of a plurality of LEDs (103) and an encapsulant (104). The array (102) of a plurality of LEDs (103) provide LED light (103?) and extend along the LED filament length (L). The encapsulant (104) is at least partially enclosing the plurality of LEDs (103). The encapsulant (104) comprises a light scattering material (105).

Abstract: The present invention relates to an adjustable light source holder (100), comprising an inner part (110), in the form of a partly spherical shell (214), configured to house a light source; an outer part (120), in the form of a partly spherical shell (324), configured to house and interact with the partly spherical shell of the inner part; wherein the inner part is tiltable relative to the outer part about an arbitrary tilt axis (130); wherein the inner part (110) is made from an elastic material; and wherein an outer surface (212) of the inner part and/or an inner surface (322) of the outer part comprises a rough portion (416, 426). Methods of manufacturing the adjustable light source holder and related directable spotlight systems are also presented.

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 invention provides a light generating device (1000) configured to generate device light (1001), wherein the light generating device (1000) comprises (i) a first light source (110) configured to generate blue first light source light (111), wherein the first light source (110) is a first laser light source (10), (ii) a first luminescent material (210) configured to convert part of the blue first light source light (111) into first luminescent material light (211) having an emission band having wavelengths in one or more of the green and yellow, (iii) an optical filter (410) configured to optically filter the first luminescent material light (211) into optically filtered first luminescent material light (213), whereby the optically filtered first luminescent material light (213) is red-shifted relative to the first luminescent material light (211), and (iv) a second light source (120) configured to generate red second light source light (121), wherein the second light source (120) comprises a second laser l

Abstract: A luminaire (10) has first light source (30) which provides light into a light mixing chamber (20) such that un-collimated light reaches the light output face (26) of the light mixing chamber (20), and a second light source (32) which provides collimated light to the light output face (26). The luminaire (10) can thus produce a diffuse flat light output and/or a directed partially collimated light output for example for task lighting.

Abstract: A light emitting diode, LED, filament arrangement (100), comprising at least one LED filament (120) extending along a longitudinal axis, A, wherein the at least one LED filament comprises an array of a plurality of light emitting diodes (140), LEDs, and an encapsulant (145) comprising a translucent material, wherein the encapsulant at least partially encloses the plurality of LEDs. The LED filament arrangement further comprises a heat sink structure (150), wherein the encapsulant of the least one LED filament is in thermal connection with the heat sink structure for a dissipation of heat from the at least one LED filament, and wherein the heat sink structure comprises a reflective surface (160) for reflecting the incident light from the at least one LED filament.

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 light guide (1) is presented. The light guide (1) comprises a body (2) made of a transparent polymer with nanoparticles (3) arranged therein, said body (2) comprising at least one locally deformed section (4) forming a local light out-coupling portion (6) of the light guide (1), wherein the local light out-coupling portion (6) comprises crazes (5) at, or in vicinity of, at least a portion of the nanoparticles (3) arranged in the at least one portion of the light guide (1), the crazes (5) are acting as light scatterers. Also a method for introducing a local light out-coupling portion (6) in a light guide (1) is presented.

Abstract: The present invention relates to a lamp (1), comprising a lamp base (3), a semi-reflective envelope (2), at least one first solid state light source filament (4a-d) arranged inside the semi-reflective envelope (2), and a second solid state light source (5) arranged inside the semi-reflective envelope (2), wherein the reflectivity of the semi-reflective envelope (2) is in the range from 30% to 70% for light emitted by the at least one first solid state light source filament (4a-d) and the second solid state light source (5), wherein the at least one first solid state light source filament (4a-d) is arranged at a first distance lower than 7 millimeters from the semi-reflective envelope (2), and wherein the second solid state light source (5) is arranged at second distance higher than 15 millimeters from the semi-reflective envelope (2).

Abstract: The present invention relates to an optical structure for producing a decorative lighting effect in a lighting device, and a lighting device comprising at least one of the optical structure, wherein the optical structure comprises an optical element formed in one piece and comprising at least one opening; and an LED-filament comprising a substrate and a plurality of light sources arranged on the substrate, the substrate being at least partly made of a flexible material; wherein the at least one opening is adapted to receive the LED-filament such that a portion of the LED-filament extends through and is at least partly enclosed by a surrounding wall of the at least one opening such that the LED-filament is guided by and held in place by means of the at least one opening of the optical element and wherein light emitted from the LED-filament interacts with the optical element.

Abstract: A light emitting device (1) having a longitudinal axis (A) comprising at least one LED light source (8, 9) adapted for, in operation, emitting first light, at least one LED filament (4, 5, 6, 7) adapted for, in operation, emitting second light, at least one translucent core element (2), the translucent core element comprising a circumferential wall (3), an inner space (21) enclosed by the circumferential wall, and an outer bulb (13) enclosing the at least one translucent core element (2) and the at least one LED filament (4, 5, 6, 7), wherein the at least one LED light source (8, 9) being arranged in the inner space enclosed by the circumferential wall of the translucent core element, and the at least one LED filament (4, 5, 6, 7) being arranged outside of the at least one translucent core element, and wherein the at least one translucent core element (2) is centrally arranged on the longitudinal axis (A).

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 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 light source (120) of second light source light (121), and a second 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 437-472 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,