| 摘要 |
This laser machining device (300) is provided with a laser light source (202) that emits laser light (L), focusing optics (204) that focus said laser light (L) onto a workpiece (1), a reflective spatial light modulator (203), and a light-blocking part (220). The reflective spatial light modulator (203) modulates the laser light (L) such that: said laser light (L) is split into ±nth-order light (n being a natural number) and zeroth-order light, including first machining light and second machining light, at least; the first machining light is focused onto a first focal point; and the second machining light is focused onto a second focal point. Of the ±nth-order light and the zeroth-order light focused onto the workpiece (1), the light-blocking part (220) blocks light that would be focused outside the first machining light and the second machining light. |
