Abstract: The field of the present invention is a LED filament lamp (7) for illumination wherein at least one LED filament lamp (7) is configured to emit a polarized light. The LED filament lamp (7) comprises at least one LED filament (1) and an encapsulated volume (V) having an envelope (10) comprising a light exit window, inside of which the LED filament (1) is arranged. The LED filament (1) or LED filaments (11,12) comprises a plurality of LEDs (3) arranged on a filament carrier (2). At least one polarizer (5) is arranged relative to the LED filament (1). The polarizer (5) is configured to provide a polarization direction of light. The polarizer (5) encloses or partially encloses the at least one LED filament (1), such that the light or part of the light emitted from the LED filament lamp (7) may be polarized light or non-polarized.

Abstract: The invention provides a method for manufacturing a 3D item (1) by means of 3D printing. The method comprises depositing a 3D printable material (320) to provide the 3D item (1) comprising a stack of layers (330) of 3D printed material. Each layer (330) of the stack of layers (340) of 3D printed material comprises a core (312) and a shell (311). The 3D printable material comprises a core material (212) for forming the core (312) and a shell material (211) for forming the shell (311). The shell material (211) is a thermoplastic polymer having a shell melting temperature and/or a shell glass transition temperature and is deposited from a nozzle (502) having a nozzle temperature, which is higher than the shell melting temperature and/or the shell glass transition temperature. The core material (212) is an acoustically absorbing material (222) so that the core (312) is capable of providing acoustic attenuation. The 3D item (1) produced using the method of this invention is acoustically absorbing.

Abstract: A method of manufacturing a bent LED filament (10; 10?), comprising: providing a carrier (12), wherein N?3 parallel rows (14) of LEDs (16) are arranged on the carrier, wherein LEDs in each row of LEDs are electrically connected with a row electrical connection (18), and wherein an elongated opening (22) in the carrier is provided between each two adjacent rows of LEDs, resulting in at least N-1 elongated openings, each elongated opening extending along the length (L) of the two adjacent rows of LEDs and forming neighboring segments (26a-b, 26b-c) of the carrier; providing one or more encapsulants (32) onto the rows of LEDs such that the one or more encapsulants cover the N?3 parallel rows of LEDs and at least part of the carrier; cutting the carrier at only one end (34) of each neighboring segments, such that i) a meandering carrier and LED filament (10) or ii) a comb-shaped carrier and LED filament (10?) is formed, wherein the other ends of the neighboring segments (26a-b, 26b-c) are connected via a connecti

Abstract: There is provided a light emitting diode, LED, filament, configured to emit LED filament light. The LED filament comprises a carrier, and an array of a plurality of light emitting diodes, LEDs, arranged on the carrier. The LED filament comprises an encapsulant at least partially enclosing the array and at least partially enclosing the carrier. Each LED of the plurality of LEDs is arranged to emit LED light comprising at least one of violet light, blue light, cyan light, and red light. The encapsulant comprises a near-infrared, NIR, phosphor configured to convert at least part of the LED light emitted from the plurality of LEDs into NIR converted light having a NIR dominant peak wavelength, ?5, in a wavelength range of 700 to 1400 nm, wherein the LED filament light comprises the NIR converted light.

Abstract: The present invention relates to an LED filament (10) comprising: an at least partially light-transmissive elongated carrier (14); first LEDs (20) configured to emit first LED light (22) and distributed along the carrier on a first surface thereof; a first elongated translucent layer (26) comprising a first luminescent material arranged to at least partly convert said first LED light into first converted light (28); an elongated reflective layer (30) arranged to at least partially cover said first elongated translucent layer, such that at least part of said first converted light is transmitted through said at least partially light-transmissive elongated carrier; and second LEDs (32a-c) configured to emit second LED light (34) and distributed along the carrier on a second surface thereof, wherein the second LEDs comprise blue LEDs (32a), green LEDs (32b), and red LEDs (32c); wherein said second surface of the carrier is free from an encapsulant or comprises an encapsulant (38) being free from a luminescent mat

Abstract: The invention provides a track-lighting system comprising: (i) an elongated power track extending in a longitudinal direction along a longitudinal axis, wherein the elongated power track comprises: a tubular profile extending in said longitudinal direction, wherein the tubular profile comprises an inner surface, an outer surface, and a slot extending in said longitudinal direction, wherein the inner surface is accessible through said slot; an 5 inner track arranged on said inner surface and extending in said longitudinal direction; an outer track arranged on said outer surface and extending in said longitudinal direction; (ii) a lighting device; wherein the lighting device comprises an inner track-connector configured to connect the lighting device mechanically and electrically to said inner track; (iii) a panel; wherein the panel comprises an outer track-connector configured to connect the panel 10 mechanically to said outer track.

Abstract: The invention provides a light generating system (1000) configured to generate system light (1001), wherein the light generating system (1001) comprises a first light generating device (110) and a second light generating device (120); wherein: —the first light generating device (110) comprises a first light source (10) and a first luminescent converter (210); wherein the first luminescent converter (210) comprises a first matrix material (215) and a first luminescent material (216), wherein the first luminescent material (216) has a first weight percentage CW1 relative to a total weight of the first luminescent converter (216); the first light generating device (110) is configured to generate first device light (111) having a spectral power distribution in the wavelength range of 380-780 nm with at least 60% of a spectral power provided by the first light source light (11) and at maximum 40% of the spectral power provided by the first converter light (211); —the second light generating device (120) comprises

Abstract: The invention provides a light generating system (1000) comprising a light generating device (100), a lightguide (400), and a light collimating reflector (200), wherein the light generating device (100) is configured to generate device light (101); wherein the light generating device (100) comprises a solid state light source; wherein the lightguide (400) comprises a first lightguide face (410), a second lightguide face (420), and a side face (430) bridging the first lightguide face (410) and the second lightguide face (420); wherein the lightguide (400) comprises light outcoupling elements (600) (comprised by one or more of lightguide faces (410,420) and/or arranged in the lightguide (400)); wherein the first lightguide face (410) comprises a surface area A1; the first lightguide face (410) comprises (a) an inner surface part (455), having an inner surface area A11, and (b) an outer surface part (465), surrounding the inner surface part (455), (the outer surface part (465)) having an outer surface area A12;

Abstract: The present invention relates to an LED filament (10) for providing LED filament light (12), comprising: an elongated carrier (14); and a plurality of light emitting diodes (16) arranged on the elongated carrier, wherein the LED filament is arranged in a coiled-coil configuration.

Abstract: A light emitting diode, LED, filament (1) comprising a plurality of LEDs (2) configured to, in operation, emit LED light having a peak wavelength in a blue wavelength range, and a first wavelength-converting encapsulant (5) being arranged to receive at least part of the LED light and comprising a first organic wavelength-converting material configured to at least partly convert the LED light into first organic converted light having a peak wavelength in a red wavelength range of 580 nm to 680 nm. The LED filament (1) is arranged such that the first wavelength-converting encapsulant (5) is spaced apart from the plurality of LEDs (2). The LED filament (1) is arranged such that the LED filament light (9) emitted by the LED filament in operation comprises at least some of the LED light and at least some of the first organic converted 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 using a fused deposition modeling 3D printer (500) for layer-wise depositing 3D printable material (201) to provide the 3D item (1) comprising a layer (322) of 3D printed material (202); wherein the 3D printer (500) comprises an extruder section (510), a nozzle section (520) configured downstream of the extruder section (510), a first feeder (530), and a second feeder (540); wherein the nozzle section (520) comprises a core-shell nozzle (502) comprising (i) a nozzle core (521), configured downstream of the extruder section (510), and (ii) a nozzle shell (522) (not configured downstream of the extruder section (510)); wherein the first feeder (530) is configured to feed particulate material (531) comprising a first 3D printable material (1201), to the extruder section (510), wherein the first 3D printable material (1201) comprises a first material (1211); wherein the sec

Abstract: The invention provides a method for producing a 3D item (1) by means of 3D printing using a 3D printer (500), wherein the 3D printer (500) has a receiver item (550) which can be heated to a receiver item temperature. The method comprises the steps of providing a receiver item (550) having an adhesion layer (222) made of a first 3D printable material (201), the first 3D printable material (201) comprising a thermoplastic amorphous polymer having a first glass transition temperature TG1. Selecting a second receiver item temperature TR2 above the first glass transition temperature; and printing the 3D item (1) on top of the adhesion layer (220) using a second 3D printable material (201). The second 3D printable material (201) comprises a thermoplastic polymer having a second glass transition temperature TG2 and/or a second melting temperature TM2, wherein TG2>TR2>TG1 and/or TM2>TR2>TG1, and the second 3D printable material (201) being non-miscible with the first 3D printable material (201).

Abstract: The invention provides a light generating system (1000) comprising a first light generating arrangement (110), a second light generating arrangement (120), a luminescent element (210), a diffuser element (410), a beam direction control system (500), and a control system (300), wherein: (A) the first light generating arrangement (110) is configured to generate a first beam (B1) of first device light (111), wherein the first light generating arrangement (110) comprises a first solid state laser light source (10); (B) the second light generating arrangement (120) is configured to generate a second beam (B2) of second device light (121), wherein the second light generating arrangement (120) comprises a second solid state laser light source (20); (C) the luminescent element (210) comprises a luminescent material (200), wherein the luminescent material (200) is able to convert the first 10 device light (111) and/or the second device light (121) received by the luminescent material (200) into luminescent material li

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: A foldable luminaire (100) is provided. The foldable luminaire comprises a body (110) having a thickness (d) and comprising a top side (110a) and a bottom side (110b) separated by the thickness. The foldable luminaire also comprises a plurality of LED light sources (120,155) arranged to, in operation, emit LED light (125). The foldable luminaire further comprises a first flexible material later (130) attached at the bottom side of the body. The first flexible material layer comprises electrical connecting elements for providing power to the LED light sources. The foldable luminaire further comprises a plurality of light shaping elements (460) arranged in the body configured to at least partially shape or redirect the light into luminaire light (105). A plurality of slits (140) is formed in the body extending from the top side to the bottom side such that a plurality of body segments (1, 2, . . . , n) with respective length (L1, L2, . . . , Ln) are formed in the body.

Abstract: A luminaire system comprising a luminaire (1) having a connection slot (6) and a UV lighting module (7) comprising a connection portion (11) configured to be inserted into the connection slot (6), a light emitting portion (12) housing a module solid state light source (13) configured to generate module light (32) comprising UV light having a dominant peak wavelength in the 100-380 nm range, and a light exit window (14) configured to exit the module light, wherein an area (A2) of the light exit window (14) is at least 1.5 times as large as an opening area (Al) of the connection portion (11). With this design, a relatively small connection slot may be used to connect a UV lighting module with a significantly larger light exit window. This makes it possible to easily retrofit a luminaire provided with a “sensor slot” with a UV lighting capability.

Abstract: A light generating system is provided, having one or more pump light sources, a first luminescent material, a second luminescent material, and optics, wherein the first/second luminescent materials convert at least part of the pump light source light into first/second luminescent materials light, the first and second luminescent materials light have different spectral power distributions; the optics comprise first/second wavelength dependent optics which spectrally separate the first luminescent material light into a first part of the first luminescent material light and a second part of the first luminescent material light into two directions; the second wavelength dependent optics spectrally combines the first part of the first luminescent material light, the second part of the first luminescent material light, and the second luminescent material light; and the light generating system is configured to generate system light using the pump light source light and the first/second luminescent material light.

Abstract: A luminaire system comprising a luminaire (1) including at least one luminaire white light source (3) associated with a respective luminaire collimator (8), wherein the collimated white light (32) has a main luminaire optical axis (OL) which, when the luminaire is mounted in or onto a ceiling (30), is aligned with a direction of gravity, and a connection slot.

Abstract: The present invention relates to an LED filament (100) comprising a carrier (110) comprising a plurality of LEDs (140) arranged in at least two columns of LEDs (150, 160). The plurality of LEDs (140) are grouped into at least two different subsets of LEDs (120, 130), wherein a first subset of the LEDs (120) is configured to emit light of a first color temperature, CT1, and a second subset of the LEDs (130) is configured to emit light of a second color temperature, CT2, CT2 being different from CT1. The LEDs (140) of the at least two different subsets of LEDs (120, 130) are arranged in an alternating intersecting configuration in the at least two columns of LEDs (150, 160) such that each column (150) comprises alternating segments (132, 124) configured to emit light of the first and the second color temperatures, respectively.

Abstract: The invention provides a light generating system (1000) comprising a first light generating arrangement (2100), a luminescent body (210), a reflective polarizer (500), and a control system (300); wherein the first light generating arrangement (2100) is configured to generate pump light (2101) having a controllable polarization, wherein the polarization is controllable between a first polarization and a second polarization; wherein the first light generating arrangement (2100) comprises a first solid state light source (10) selected from the group comprising a superluminescent diode and a laser diode; wherein the luminescent body (210) comprises a luminescent material (200); wherein the luminescent body (210) is configured to (a) transmit at least part of the pump light (2101) (comprising the first polarization and/or the second polarization) and (b) convert at least part of the pump light (2101) (comprising the first polarization and/or the second polarization) into luminescent material light (201); wherein t