US 11,833,741 B2
3D printed object covered with a heat shrink
Rifat Ata Mustafa Hikmet, Eindhoven (NL); and Ties Van Bommel, Horst (NL)
Assigned to SIGNIFY HOLDING B.V., Eindhoven (NL)
Appl. No. 17/915,207
Filed by SIGNIFY HOLDING B.V., Eindhoven (NL)
PCT Filed Mar. 26, 2021, PCT No. PCT/EP2021/057992
§ 371(c)(1), (2) Date Sep. 28, 2022,
PCT Pub. No. WO2021/198096, PCT Pub. Date Oct. 7, 2021.
Claims priority of application No. 20166936 (EP), filed on Mar. 31, 2020.
Prior Publication US 2023/0118231 A1, Apr. 20, 2023
Int. Cl. B29C 64/118 (2017.01); B33Y 10/00 (2015.01); B29C 63/00 (2006.01); F21V 1/14 (2006.01); F21V 1/22 (2006.01); F21V 1/26 (2006.01); B33Y 80/00 (2015.01); B29L 31/00 (2006.01)
CPC B29C 64/118 (2017.08) [B29C 63/0065 (2013.01); B33Y 10/00 (2014.12); F21V 1/146 (2013.01); F21V 1/22 (2013.01); F21V 1/26 (2013.01); B29K 2995/0049 (2013.01); B29L 2031/7472 (2013.01); B33Y 80/00 (2014.12)] 15 Claims
OG exemplary drawing
 
1. A method of manufacturing an object by means of fused deposition modelling, the method successively comprising the steps of:
3D printing a printable material to create a layer stack of printed material, wherein the layer stack bounds a space, wherein the layer stack has an inner stack surface and an outer stack surface, the inner stack surface facing towards the space and the outer stack surface facing away from the space,
providing a heat shrink onto the layer stack, wherein the heat shrink has an inner heat shrink surface and an outer heat shrink surface, the inner heat shrink surface facing towards the outer stack surface and the outer heat shrink surface facing away from the outer stack surface, and
applying heat to shrink the heat shrink so that the inner heat shrink surface is in physical contact with the outer stack surface and the heat shrink is conformal to the layer stack,
wherein the layer stack is light transmissive, and
wherein the heat shrink is arranged to provide an optical effect chosen from the group consisting of refraction, diffraction, reflection, diffusion and conversion.