| 摘要 |
Device comprises a collimated laser (1), a rotating mirror (2) that ensures the laser scans a surface (3), from which light reflects towards a direction device (4) made up of photosensitive semiconductor elements. A synchronised stepper motor (5) controls the mirror's angular position (6). The material (3) is scanned tangentially (7), axially (8) and at mid-point (9) between cylinders (10).
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