公开(公告)号：US20220143901A1

公开(公告)日：2022-05-12

申请号：US17433855

申请日：2020-03-02

申请人： SIGNIFY HOLDING B.V.

发明人： RIFAT ATA MUSTAFA HIKMET ,  JOHANNES PETRUS MARIA ANSEMS ,  BERT WOUTERS ,  PAULUS ALBERTUS VAN HAL

IPC分类号： B29C64/118

摘要： 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 the 3D printed material (202), wherein each of the connected body elements (310) comprises at least two adjacent 3D printed layer parts (1322); wherein the method comprises:—for each of the body elements (310) printing a single continuous layer part (2322) comprising the at least two adjacent 3D printed layer parts (1322), wherein the printing of the single continuous layer part (2322) involves printing in a first direction and then turning back and printing back in a second direction opposite to the first direction to provide a first body element U-turn (313) at the first end (311) of the body element (310); and—connecting adjacent body elements (310) by one or more of (i) merging parts of the adjacent body elements (310), (ii) 3D printing a connection element (320) connecting the adjacent body elements (310), and (iii) 3D printing the single continuous layer part (2322) comprising the 3D printed layer parts (1322) of the adjacent body elements (310).

公开(公告)号：US20210197444A1

公开(公告)日：2021-07-01

申请号：US17270117

申请日：2019-08-22

申请人： SIGNIFY HOLDING B.V.

发明人： PAULUS ALBERTUS VAN HAL, V ,  PATRICK ZUIDEMA ,  BERT WOUTERS ,  RIFAT ATA MUSTAFA HIKMET

IPC分类号： B29C64/118 ,  B33Y10/00 ,  B33Y70/00 ,  B29C64/205

摘要： 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., and a first high glass transition temperature THG1 or a first high melting temperature THM1 of at minimum at 60° C., and wherein the second thermoplastic material (112) has a Young's modulus in the range of 1 to 10 GPa, and one or more of a second glass transition temperature TG2 and a second melting temperature TM2 of at minimum 60° C.

公开(公告)号：US20230071919A1

公开(公告)日：2023-03-09

申请号：US17985791

申请日：2022-11-11

申请人： SIGNIFY HOLDING B.V.

发明人： RIFAT ATA MUSTAFA HIKMET ,  PAULUS ALBERTUS VAN HAL ,  BERT WOUTERS

IPC分类号： B29C64/209 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y70/00 ,  B29C64/118

摘要： 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.

公开(公告)号：US20210207785A1

公开(公告)日：2021-07-08

申请号：US16770001

申请日：2018-12-04

申请人： SIGNIFY HOLDING B.V.

发明人： RIFAT ATA MUSTAFA HIKMET ,  BERT WOUTERS ,  PAULUS ALBERTUS VAN HAL ,  JOHANNES PETRUS MARIA ANSEMS

IPC分类号： F21V7/00 ,  F21S4/28 ,  F21V7/06

摘要： 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).