Abstract: An optical component (10) is disclosed comprising a plurality of layers (11), each layer comprising a core portion (13) and a shell portion (15) enveloping the core portion, wherein the core portion is made of a first material and the shell portion is made of a second material, the first material and the second material having a different transmissivity. Also disclosed are a luminaire comprising such an optical component and a method of manufacturing such an optical component.

Abstract: The invention provides a printer head (501) for a 3D printer, the printer head (501) comprising n distribution elements (510), wherein n?2, a combination chamber (520), and a printer nozzle (502), wherein the combination chamber (520) is configured downstream of the distribution elements (510) and upstream of the printer nozzle (502), wherein each distribution element (510) comprise a flow-through chamber (511) with an inlet (512) and a plurality of k outlets (513) to the combination chamber (520), wherein k?4, wherein the outlets (513) of the distribution elements (510) are configured such that a plurality of outlets (513) of a distribution element (510) have outlets (513) of another distribution element (510) as nearest neighbors.

Abstract: A fluidic assembly comprising a fluid analysis apparatus (30), the fluid analysis apparatus (30) comprising: a fluid measurement device (34); a fluidic device including a flow cell (36) arranged in a measurement region of the fluid measurement device (34), the flow cell (36) constructed of at least one first fluoropolymer material, the flow cell (36) including a channel, the channel containing a sample segment (52) that is carried in a fluorinated fluid carrier (54), wherein the sample segment (52) and fluorinated fluid carrier (54) are immiscible.

Abstract: The invention provides a printer head (501) for a 3D printer, the printer head (501) comprising n distribution elements (510), wherein n?2, a combination chamber (520), and a printer nozzle (502), wherein the combination chamber (520) is configured downstream of the distribution elements (510) and upstream of the printer nozzle (502), wherein each distribution element (510) comprise a flow-through chamber (511) with an inlet (512) and a plurality of k outlets (513) to the combination chamber (520), wherein k?4, wherein the outlets (513) of the distribution elements (510) are configured such that a plurality of outlets (513) of a distribution element (510) have outlets (513) of another distribution element (510) as nearest neighbors.

Abstract: Printer head (501) for a 3D printer, the printer head (501) comprising n distribution elements (510), wherein n?2, a combination chamber (520), and a printer nozzle (502), wherein the combination chamber (520) is configured downstream of the distribution elements (510) and upstream of the printer nozzle (502), wherein each distribution element (510) comprise a flow-through chamber (511) with an inlet (512) and a plurality of k outlets (513) to the combination chamber (520), wherein k?4, wherein the outlets (513) of the distribution elements (510) are configured such that a plurality of outlets (513) of a distribution element (510) have outlets (513) of another distribution element (510) as nearest neighbors.

Abstract: The invention provides a method for manufacturing a 3D item (1) by means of fused deposition modelling, wherein the 3D item (1) is a multi-arm light guide having an articulated body of at least two connected body elements (310), wherein each body element (310) is an arm of the multi-arm light guide, wherein each body element (310) has a first end (311) and a second end (312), wherein the first ends (311) of the connected body elements (310) are for incoupling of light in the multi-arm light guide, wherein the second ends (312) of the connected body elements (310) diverge from each other and are for outcoupling of light from the multi-arm light guide, wherein the method comprises a 3D printing stage wherein an extrudate (321) comprising a 3D printable material (201) is deposited in a layer-wise manner to provide the 3D item (1) comprising a 3D printed material (202); wherein the 3D printable material (201) comprises a light transmissive material; wherein the 3D item (1) comprises one or more layers (322) of th

Abstract: A housing (10) for a lighting device is disclosed. The housing comprises an elongate base region (21) and opposing elongate sidewalls (23) extending from opposite elongate sides of the elongate base region towards respective terminal ends (24), wherein each of the opposing elongate sidewalls (23) has an optically transmissive inner surface (11) separated from an outer surface (13) by a distance of 5 millimeters or less to form a cavity (15) for housing a reflective foil or a thermally conductive member. The inner surface (11) extends across the elongate base region (21), and it comprises a recess (25) in the elongate base region (21) for housing a light engine (31). Also disclosed is a luminaire (1) including such a housing (10) and a method of manufacturing such an optically transmissive housing (10).

Abstract: A housing (10) for a lighting device is disclosed. The housing comprises an elongate base region (21) and opposing elongate sidewalls (23) extending from opposite elongate sides of the elongate base region towards respective terminal ends (24), wherein each of the opposing elongate sidewalls (23) has an optically transmissive inner surface (11) separated from an outer surface (13) by a distance of 5 millimeters or less to form a cavity (15) for housing a reflective foil or a thermally conductive member. The inner surface (11) extends across the elongate base region (21), and it comprises a recess (25) in the elongate base region (21) for housing a light engine (31). Also disclosed is a luminaire (1) including such a housing (10) and a method of manufacturing such an optically transmissive housing (10).

Abstract: The invention provides a method comprising 3D printing 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 during at least part of the 3D printing stage the extrudate (321) comprises a core-shell extrudate (1321) comprising a core (2321) comprising a core material (2011), and a shell (2322) comprising a shell material (2012), wherein the core material (2011) comprises a first thermoplastic material (111) and the shell material (2012) comprises a second thermoplastic material (112) different from the first thermoplastic material (111), or vice versa, wherein the first thermoplastic material (111) is an elastomeric material having a Young's modulus in the range of 2 to 200 MPa, a first low glass transition temperature TLG1 of at maximum 0° C.

Abstract: Printer head (501) for a 3D printer, the printer head (501) comprising n distribution elements (510), wherein n?2, a combination chamber (520), and a printer nozzle (502), wherein the combination chamber (520) is configured downstream of the distribution elements (510) and upstream of the printer nozzle (502), wherein each distribution element (510) comprise a flow-through chamber (511) with an inlet (512) and a plurality of k outlets (513) to the combination chamber (520), wherein k?4, wherein the outlets (513) of the distribution elements (510) are configured such that a plurality of outlets (513) of a distribution element (510) have outlets (513) of another distribution element (510) as nearest neighbors.

Abstract: An optical component (10) is disclosed comprising a plurality of layers (11), each layer comprising a core portion (13) and a shell portion (15) enveloping the core portion, wherein the core portion is made of a first material and the shell portion is made of a second material, the first material and the second material having a different transmissivity. Also disclosed are a luminaire comprising such an optical component and a method of manufacturing such an optical component.