THREE-DIMENSIONAL MOLDING, METHOD FOR SHAPING THREE-DIMENSIONAL MOLDING, METHOD FOR READING INFORMATION ABOUT THREE-DIMENSIONAL MOLDING, SOLID ARTICLE SHAPING DEVICE, AND DEVICE FOR READING INFORMATION ABOUT THREE-DIMENSIONAL MOLDING

摘要

[Problem] To provide a technique with which identification and inspection of a three-dimensional molding can be performed simply and with excellent precision. [Solution] This information reading device 200 of a three-dimensional molding 10 acquires information, indicated by a marking unit 12, in the three-dimensional molding. An irradiation unit 210 is provided with a light source 211 which emits near-infrared excitation light 31 which excites a near-infrared fluorescent pigment, and the irradiation unit 210 emits near-infrared excitation light emitted toward a mark part 12 from the light source. An optical filter 220 blocks the near-infrared excitation light and transmits near infrared fluorescent light 32 emitted by the near-infrared fluorescent pigment. A light-receiving unit 230 receives the near-infrared fluorescent light that has passed through the optical filter. A second control unit 240 controls the operations of the irradiation unit and the light-receiving unit. The second control unit acquires information indicated by the marking unit 12 on the basis of the data received by the light-receiving unit.