Abstract: The invention provides a light generating system (1000) comprising n first vertical cavity surface emitting lasers (110) and a control system (300), wherein n?1, wherein each of the n first vertical cavity surface emitting lasers (110) is configured to generate first laser light (111) changing between at least two centroid wavelengths (?nc,1, ?nc,2) having a wavelength difference of at least 10 nm, with a changing frequency of at least 50 Hz; wherein the control system (300) is configured to control the n first vertical cavity surface emitting lasers (110) such that system light (1001) is generated comprising the first laser light (111) of at least one of the n first vertical cavity surface emitting lasers (110), and wherein the control system (300) is configured to control a spectral power distribution of the system light (1001), wherein the system light (1001) is white light having a correlated color temperature in a range from 1800 K to 8000 K and a color rendering index of at least 70.

Abstract: The invention provides a light generating system (1000) comprising (a) first light generating device (110), (b) a first laser (2100), and (c) a second laser (2200), wherein:—the first light generating device (110) is configured to generate first device light (111) having a first device centroid wavelength (?cd,1), wherein the first light generating device (110) comprises one or more of a solid state material laser and a super luminescent diode; —the first laser (2100) comprises a first lanthanide based luminescent material (2110) configured to convert at least part of the first device light (111) having the first device centroid wavelength (?cd,1) into first luminescent material light (2111), wherein the first laser (2100) is configured downstream of the first light generating device (110) and is configured to provide first laser light (2101) comprising at least part of the first luminescent material light (2111), wherein the first laser light (2101) has a first centroid laser wavelength (?cl,1) in the visibl

Abstract: A light emitting diode, LED, filament (110), configured to emit LED filament light, comprising an array of a plurality of light emitting diodes (120), LEDs, configured to emit LED light, a carrier (130) arranged to support the plurality of LEDs, at least one heat sink (140) arranged in thermal connection with the carrier for a dissipation of heat from the plurality of LEDs during operation, wherein the at least one heat sink comprises a base portion (150) extending parallel to the carrier, and a plurality of fins (160) projecting from the base portion, and an encapsulant (170) comprising a translucent material, wherein the encapsulant at least partially encloses the plurality of LEDs, the carrier and the at least one heat sink.

Abstract: The invention provides a method for producing a 3D item (1) by means of fused deposition modelling using a fused deposition modeling 3D printer (500) comprising a printer nozzle (502), wherein the 3D item (1) comprises one or more layers (322) of 3D printed material (202), the method comprising a 3D printing stage comprising: —providing 3D printable material (201) to the printer nozzle (502), wherein: —the 3D printable material (201) comprises 3D printable core material (2101) and 3D printable first shell material (2201); —the 3D printable core material (2101) comprises a core thermoplastic material (2111) having a core thermoplastic material melting temperature Tmc1; —the 3D printable first shell material (2201) comprises a first shell thermoplastic material (2211) having a first shell thermoplastic material melting temperature Tms1; wherein Tmc1>Tms1; —the 3D printable first shell material (2201) has a 3D printable first shell material optical property, the 3D printable core material (2101) has a 3D prin

Abstract: 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), wherein the 3D printing stage comprises: •—a vertical support providing stage comprising providing a first layer (1100) of 3D printed material (202), wherein the first layer (1100) has a first layer top part (1110) with a first layer top height (HI 1) relative to the substrate (1550) and a first layer bottom part (1120) with a first layer bottom height (H12) relative to the substrate (1550), wherein the first layer (1100) has a first layer height (HI) defined by the difference between the first layer top height (HI 1) and the first layer bottom height (H12), wherein the value of the first layer bottom height (H12) is at least equal to the value of th

Abstract: The invention provides amongst others a light generating system (1000) comprising a first light generating device (110), a second light generating device (120), and a luminescent material (200), wherein: (A) the first light generating device (110) is configured to generate first device light (111); the second light generating device (120) is configured to generate second device light (121); wherein the first device light (111) and the second device light (121) have different spectral power distributions; (B) the luminescent material (200) is configured to convert at least part of one or more of the first device light (111) and the second device light (121) into luminescent material light (201); (C) the first light generating device (110) comprises a wavelength variable light generating device configured to generate in an operational mode of the light generating system (1000) first device light (111) changing between at least two centroid wavelengths (1) having a wavelength difference of at least 10 nm, with a

Abstract: A light emitting device configured to tunably emit light with a total color temperature (CTtot), comprising: a carrier comprising a first major surface and an opposite second major surface, a first light source, arranged on said first major surface, and arranged to emit light with a first color temperature (CT1) tunably adjustable within a first range from a first low to a first high color temperature, a second light source, arranged on said second major surface, and arranged to emit light with a second color temperature (CT2) tunably adjustable within a second range from a second high to second low temperature, a controller configured to individually control the first and second light sources so to tunably adjust CT1 and CT2 from a first state to a second state according to a preselected scheme, by increasing CT1 and decreasing CT2 between said first and second states, such that CTtot remains unvaried.

Abstract: The present invention generally relates to the field of a lighting unit (100), and in particular to a lighting unit (100) that is suitable for being part of a suspended ceiling (0001). The lighting unit (100) comprises one or more lighting tiles (1000) and an interface component (2000). The interface component (2000) forms at least a portion of a grid system (1020) for the suspended ceiling (0001) and for supporting the lighting tile (1000). The interface component (2000) comprises a central support portion (2001) having a first end (2002) facing a ceiling (0002), and a second end (2003) having a first flange (2004) and a second flange (2005) that are opposing each other.

Abstract: A method for 3D printing a 3D item (10), the method comprising (i) providing 3D printable material (201) comprising particles (410) embedded in the 3D printable material (201), wherein the particles (410) have a longest dimension length L1, a shortest dimension length L2, and an aspect ratio AR defined as the ratio of the longest dimension length L1 and the shortest dimension length L2, and (ii) depositing during a printing stage 3D printable material (201) to provide the 3D item (10) to provide layers (230) of the 3D printed material (202) with a layer height H, wherein AR>4 and H/L1<1.

Abstract: The present invention generally relates to a lighting device (200) that comprises an optical component (100) for generating a beam shaping effect. The lighting device (200) further comprises a light source (201) and a light reflective component (114). The light source (201) is configured to provide a light source light and the light reflective component (114) is configured to at least partially reflect at least part of the light source light. The optical component (100) comprises a tubular body (101) having an outer surface (102), and an inner surface (103) opposite to the outer surface (102), the inner surface (102) at least in part forming a cavity (104). The tubular body (101) comprises a first end face (107) and a second end face (108) arranged opposite to the first end face (107).

Abstract: The invention provides a LED filament device (1000) configured to generate LED filament device light (1001), wherein the LED filament device (1000) comprises a LED filament (1100), wherein the LED filament (1100) comprises a plurality of light generating devices (100), each comprising a solid state light source (10), wherein the plurality of light generating devices (100) comprises a first set of n1 first light generating devices (110) configured to generate red first device light (111), a second set of n2 second light generating devices (120) configured to generate blue second device light (121), and a third set of n3 third light generating devices (130) configured to generate green third device light (131), wherein at least part of a total number n2 of the second light generating devices (120) of the second set are configured neighboring to first light generating devices (110) of the first set, wherein at least part of a total number n3 of the third light generating devices (130) of the third set are config

Abstract: The present invention generally relates to a lighting device (200) that comprises an optical component (100) for generating a beam shaping effect. The lighting device (200) further comprises a light source (201) and a light reflective component (114). The light source (201) is configured to provide a light source light and the light reflective component (114) is configured to at least partially reflect at least part of the light source light. The optical component (100) comprises a tubular body (101) having an outer surface (102), and an inner surface (103) opposite to the outer surface (102), the inner surface (102) at least in part forming a cavity (104). The tubular body (101) comprises a first end face (107) and a second end face (108) arranged opposite to the first end face (107).

Abstract: The present invention relates to a light-emitting diode (LED) filament (1) configured to provide LED filament light and comprising an elongated carrier (2) comprising a first surface (3) and a second surface (3?) arranged opposite to the first surface (3). The LED filament (1) further comprises a plurality of first light-emitting diodes (4). LEDs, distributed along the first surface (3) of the elongated carrier (2), the plurality of first LEDs (4) being configured to emit a first LED light having a dominant peak wavelength within a first wavelength range, and a plurality of second light-emitting diodes (5), LEDs, distributed along the second surface (3?) of the elongated carrier (2), the plurality of second LEDs (5) being configured to emit a second LED light having a dominant peak wavelength within a second wavelength range being different from the first wavelength range.

Abstract: The invention provides a method comprising 3D printing a 3D item (1), the method comprising co-depositing during a printing stage 3D printable material (201) and an elongated solid fiber (310) with a fused deposition modeling 3D printer (500) via a single nozzle (502), to provide the 3D item (1) comprising 3D printed material (202) with the elongated solid fiber (310) embedded therein.

Abstract: A luminescent converter 200, 220, 240, 260, a phosphor-enhanced light source and a luminaire are provided. The luminescent converter 200 comprises a first organic luminescent material 202, a second organic luminescent material 208 and a third inorganic luminescent material 206. The first organic luminescent material 202, the second organic luminescent material 208 and the inorganic luminescent material 206 absorb a portion of light emitted by the light source and/or absorbs a portion of light emitted by at least one of the other luminescent materials. The first organic luminescent material 202 converts at least a part of the absorbed light into light of a first color distribution. The second organic luminescent material 208 converts at least a part of the absorbed light into light of a second color distribution.

Abstract: A LED filament arrangement (100), comprising a plurality of LED filaments (110a, 110b), each LED filament comprising an array of a plurality of light emitting diodes (120), LEDs, arranged on an elongated carrier (70), wherein a first LED filament (110a) elongates along a respective first axis, Ai, and a second LED filament (110b) of the plurality of LED filaments elongates along a respective second axis, Bi, wherein a respective angle, ?i, between Ai and Bi fulfils |?i|>10°, a frame (200) comprising a plurality of first elements (210) defining a mesh structure of the frame, wherein a first element elongates along a respective first element axis, Ci, wherein a respective first angle, ?i, between Ai and Ci, and wherein a respective second angle, ?i, between Bi and Ci fulfils |?i|?|?i|, and a control unit configured to individually control the operation of the first and second LED filaments.

Abstract: The invention provides a light generating system (1000) comprising (i) a first light generating device (110), an optical element (500), and a first converter material (210), wherein: (A) the first light generating device (110) is configured to generate first device light (111), wherein the first device light (111) comprises one or more of visible light and infrared radiation: (B) the optical element (500) is configured in a light receiving relationship with the first light generating device (110); wherein the optical element (500) is transmissive for the first device light (111): (C) the first converter material (210) is configured downstream of the optical element (500); wherein the first converter material (210) is configured to convert at least part of the first device light (111) transmitted by the optical element (500) into first converter material light (211): wherein the first light generating device (110) and the first converter material (210) are selected such that the first converter material light

Abstract: The invention provides a method for producing a 3D item (1) by means of fused deposition modelling, the method comprising a 3D printing stage, wherein the 3D printing stage comprises a reflective material deposition stage, wherein the reflective material deposition stage comprises: (A) providing 3D printable material (201) comprising (i) a polymeric matrix material (211) that is transmissive for UV radiation, especially wherein the polymeric matrix material (211) comprises thermoplastic material, and (ii) a reflective material (212) that is reflective for the UV radiation and that is at least partly enclosed by the polymeric matrix material (211); wherein the reflective material (212) comprises a first fluoropolymer; and (B) depositing the 3D printable material (201), to provide the 3D item (1) comprising 3D printed material (202) comprising the matrix material (211) and the reflective material (212).

Abstract: A light emitting device (1) comprising at least one LED filament (2) adapted for, in operation, emitting LED filament light, the at least one LED filament comprising a carrier (6) and a plurality of LEDs (5) arranged on the carrier and adapted for, in operation, emitting LED light, and a heat sink element (3), the at least one LED filament (2) being arranged extending spiraling around a vertical center axis LA of the light emitting device, wherein the heat sink element (3) further is arranged extending spiraling around the vertical center axis of the light emitting device, and wherein the heat sink element (3) is arranged extending from the at least one LED filament towards the vertical center axis of the light emitting device.

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