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US 10,589,461 B2Granted
Method of using FDM to obtain specularly reflective surfaces
AssigneeSignify Holding B.V.
InventorsRifat Ata Mustafa Hikmet, Ties Van Bommel
Life of this patent
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AssigneeSignify Holding B.V.
InventorsRifat Ata Mustafa Hikmet, Ties Van Bommel
Estimating the term…
A method for 3D printing a 3D item (10), the method comprising providing a filament (320) of 3D printable material (201) and printing during a printing stage said 3D printable material (201) on a substrate (1550), to provide said 3D item (10), wherein the printing stage comprises (a) providing a layer (405) comprising particles (410) on the substrate (1550), wherein the particles (410) have a main axis (A1) having a main axis length (LI), and a minor axis (A2) having a minor axis length (L2), wherein the main axis length (LI) and the minor axis length (L2) have a first aspect ratio of at least 5, wherein in average the main axes (A1) of said particles (410) are configured parallel to a tangential plane (P) to the substrate (1550), wherein said particles (410) comprise light reflective material (411), and (b) printing said 3D printable material (201) on said layer (405) on the substrate (1550) to provide said 3D item (10) comprising said layer (405).
A method for 3D printing a 3D item, the method comprising providing a filament of 3D printable material and printing during a printing stage said 3D printable material on a substrate, to provide said 3D item, wherein the printing stage comprises:
A 3D printed item comprising 3D printed material and a specular reflective layer on at least part of said 3D printed material, wherein the 3D printed material comprises a thermoplastic material, wherein the specular reflective layer comprises particles, wherein each particles has a main axis (A1), a minor axis (A2) and a further axis (A3), the main axis (A1), the minor axis (A2), and the further axis (A3) defining a rectangular parallelepiped with a smallest volume that encloses the particle, wherein the main axis (A1) has a main axis length (L1), the minor axis (A2) has a minor axis length (L2), and the further axis (A3) has a further axis length (L3), wherein the main axis length (L1) and the minor axis length (L2) have a first aspect ratio larger of at least 5, wherein the further axis length (L3) and the minor axis length (L2) have a second aspect ratio of at least 5, and wherein said particles comprise light reflective material.
Dependencies are inferred from the claim text.