3D PRINTER FOR PHOTOPOLYMERIZING A PHOTOSENSITIVE PLASTIC RESIN USING A LIGHTING PATTERN

• Main Authors: KRUGER MARCEL, MOHR TIMM, SCHEUCHENPFLUG JOHANNES
• Format: Patent
• Language: Chinese; English
• Published: 07.01.2022
• Subjects: ADDITIVE MANUFACTURING TECHNOLOGY; ADDITIVE MANUFACTURING, i.e. MANUFACTURING OFTHREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVEAGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING,STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; PERFORMING OPERATIONS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

The invention relates to a 3D printer (10) for photopolymerizing a photosensitive plastic resin (14) using a lighting pattern. The 3D printer (10) comprises a plastic resin bath (12) for the photosensitive plastic resin (14) and a lifting device (34), said photosensitive plastic resin (14) being polymerizable on the lifting device (34) using light with a specified wavelength. Furthermore, a carrier medium (20) is provided which has a coupling region (22) and a decoupling region (24), and a lighting device (18), which emits light onto the coupling region (22), said coupling region (22) having a coupling deflection structure (30), couples the light with the specified wavelength, which is incident on the coupling deflection structure (30) from the lighting device (18), into the carrier medium (20) in the direction of the decoupling region (24). The decoupling region (24) is arranged below the plastic resin bath (12) and has a decoupling deflection structure (32) which couples the coupled light with the specified