MANUFACTURING SYSTEM CONFIGURED TO CARRY OUT A METHOD FOR ADDITIVELY MANUFACTURING AN OPHTHALMIC DEVICE AND SUCH A METHOD

• Main Authors: HUPREL, Laurent, LEITE, Pierre, LECOMPERE, Maxime
• Format: Patent
• Language: English; French
• Published: 22.06.2023
• 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; PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCESIN A PLASTIC STATE; 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 disclosure provides an additive manufacturing system comprising a tank (10) filled with a volume of a predetermined material (11), a building platform (20) on which layers (3) made from the predetermined material are formed, a curing device (12) configured for at least partially hardening the layers of the ophthalmic device, a transparent plate (21) located between the building platform (20) and the curing device (13), and a flexible separation film (22) mechanically connected by ends (31) to a frame (30) and at least partially located between the transparent plate (21) and the building platform (20), the additive manufacturing system (1) being configured so that the transparent plate, the flexible separation film and the building platform are movable one relative to the other and admit first relative positions corresponding to building positions of a layer, in which the transparent plate is applied against the flexible separation film which is in a tense state, and second relative positions corresponding to layering positions of a layer, in which the transparent plate is moved relative to the frame and is remote to the flexible separation film which is at least partially in a loose state. La divulgation concerne un système de fabrication additive comprenant un réservoir (10) rempli d'un volume d'un matériau prédéterminé (11), une plate-forme de construction (20) sur laquelle sont formées des couches (3) constituées du matériau prédéterminé, un dispositif de durcissement (12) conçu pour solidifier au moins partiellement les couches du dispositif ophtalmique, une plaque transparente (21) située entre la plate-forme de construction (20) et le dispositif de durcissement (13), et un film de séparation souple (22) relié mécaniquement par des extrémités (31) à un cadre (30) et au moins partiellement situé entre la plaque transparente (21) et la plate-forme de construction (20), le système de fabrication additive (1) étant conçu de sorte que la plaque transparente, le film de séparation souple et la plate-forme de construction soient mobiles les uns par rapport aux autre et adoptent des premières positions relatives correspondant aux positions de construction d'une couche, dans lesquelles la plaque transparente est appliquée contre le film de séparation souple qui est dans un état tendu, et des secondes positions relatives correspondant aux positions de stratification d'une couche, dans lesquelles la plaque transparente est déplacée par rapport au cadre et est éloignée du film de séparation souple qui est au moins partiellement dans un état lâche.