| 摘要 |
Even a region where powder is melted is scanned by an electron beam at the highest speed. A three-dimensional shaping apparatus includes an electron gun that generates an electron beam, at least one first deflector that deflects the electron beam one-dimensionally or two-dimensionally, at least one lens that is provided between the electron gun and the first deflector and focuses the electron beam, and a second deflector that is provided between the electron gun and the first deflector and deflects the electron beam one-dimensionally or two-dimensionally |
