THREE-DIMENTIONAL SHAPING APPARATUS

• Main Authors: HASHIMOTO YOSHIZO, HISHITANI DAISUKE
• Format: Patent
• Language: English; Japanese
• Published: 30.09.2021
• 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; CASTING; MAKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICS; PERFORMING OPERATIONS; PHYSICS; POWDER METALLURGY; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; TRANSPORTING; WORKING METALLIC POWDER; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

To provide a technique capable of producing a three-dimensional object with higher form accuracy.SOLUTION: A three-dimensional shaping apparatus produces a three-dimensional object. The three-dimensional shaping apparatus includes a beam irradiation part 10, a spatial light modulator 14, a separation optical system 18, and a scanning part. The beam irradiation part 10 radiates light beams, and the spatial light modulator 14 spatially modulates light beams radiated by the beam irradiation part 10 at least at a first axis. The separation optical system 18 includes at least one lens array 18A having a plurality of lenses 18a aligned along the first axis, and separates light beams modulated by the spatial light modulator 14 into a plurality of light beams by the lens array 18A. The scanning part scans the plurality of light beams from the separation optical system 18 on a shaping material.SELECTED DRAWING: Figure 4 【課題】より高い形状精度で３次元造形物を製造できる技術を提供する。【解決手段】３次元造形装置は３次元造形物を製造する。３次元造形装置は、ビーム照射部１０と、空間光変調器１４と、分離光学系１８と、走査部とを含む。ビーム照射部１０は光ビームを照射する。空間光変調器１４は、ビーム照射部１０によって照射された光ビームを少なくとも第１軸において空間変調する。分離光学系１８は、第１軸に沿って並んだ複数のレンズ１８ａを有する少なくとも一つのレンズアレイ１８Ａを含み、空間光変調器１４によって変調された光ビームを、レンズアレイ１８Ａによって複数の光ビームに分離する。走査部は、分離光学系１８からの複数の光ビームを造形材料上で走査させる。【選択図】図４