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1. WO2018140218 - METHOD AND APPARATUS USING LIGHT ENGINES FOR PHOTO-CURING OF LIQUID POLYMERS TO FORM THREE-DIMENSIONAL OBJECTS

Publication Number WO/2018/140218
Publication Date 02.08.2018
International Application No. PCT/US2018/012774
International Filing Date 08.01.2018
IPC
B29C 64/129 2017.01
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
64Additive manufacturing, i.e. manufacturing of three-dimensional objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
10Processes of additive manufacturing
106using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material
124using layers of liquid which are selectively solidified
129characterised by the energy source therefor, e.g. by global irradiation combined with a mask
B29C 64/277 2017.01
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
64Additive manufacturing, i.e. manufacturing of three-dimensional objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
20Apparatus for additive manufacturing; Details thereof or accessories therefor
264Arrangements for irradiation
277using multiple radiation means, e.g. micromirrors or multiple light-emitting diodes
B33Y 30/00 2015.01
BPERFORMING OPERATIONS; TRANSPORTING
33ADDITIVE MANUFACTURING TECHNOLOGY
YADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
30Apparatus for additive manufacturing; Details thereof or accessories therefor
CPC
B29C 64/129
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
64Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
10Processes of additive manufacturing
106using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material
124using layers of liquid which are selectively solidified
129characterised by the energy source therefor, e.g. by global irradiation combined with a mask
B29C 64/277
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
64Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
20Apparatus for additive manufacturing; Details thereof or accessories therefor
264Arrangements for irradiation
277using multiple radiation means, e.g. micromirrors or multiple light-emitting diodes [LED]
B33Y 30/00
BPERFORMING OPERATIONS; TRANSPORTING
33ADDITIVE MANUFACTURING TECHNOLOGY
YADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
30Apparatus for additive manufacturing; Details thereof or accessories therefor
Applicants
  • NEXA3D INC. [US]/[US]
Inventors
  • ZITELLI, Gianni
  • REICHENTAL, Avi, N.
  • TRINGALI, Luciano
Agents
  • FAHMI, Tarek, N.
Priority Data
15/415,68825.01.2017US
62/450,47025.01.2017US
62/531,21111.07.2017US
62/531,27611.07.2017US
62/531,46112.07.2017US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) METHOD AND APPARATUS USING LIGHT ENGINES FOR PHOTO-CURING OF LIQUID POLYMERS TO FORM THREE-DIMENSIONAL OBJECTS
(FR) PROCÉDÉ ET APPAREIL UTILISANT DES MOTEURS À LUMIÈRE POUR LE PHOTODURCISSEMENT DE POLYMÈRES LIQUIDES POUR FORMER DES OBJETS TRIDIMENSIONNELS
Abstract
(EN)
Three-dimensional objects are formed by photo-curing a liquid polymer by exposure to a radiation, which radiation (e.g., at 410 nm) is provided by a collimated light source composed of an array of light emitting diode (LED) sources, an array of baffles, and an array of lenses. The baffles limit beam widths of each individual LED source in the array of LED, and the array of lenses is located one focal length from said array of LED sources.
(FR)
Des objets tridimensionnels sont formés par photodurcissement d'un polymère liquide par exposition à un rayonnement, lequel rayonnement (par exemple à 410 nm) est émis par une source lumineuse collimatée composée d'un réseau de sources de diodes électroluminescentes (DEL), d'un réseau de déflecteurs et d'un réseau de lentilles. Les déflecteurs limitent les largeurs de faisceau de chaque source de DEL individuelle dans le réseau de DEL et le réseau de lentilles est situé à une distance focale dudit réseau de sources de DEL.
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