Flat field focusing mirror, also known as field mirror and f-theta focusing mirror, is a professional lens system, which aims to form a uniform focused spot in the whole marking plane with the laser beam. It is one of the most important accessories of the laser marking machine.
| Product name | Optical field mirror Scanning field mirror |
| Laser wavelength | 355nm 1064nm 10640nm |
| Focal length (mm) | F=254mm |
| Working distance | 290mm |
| Scanning range (mm) | 200mm |
| Scanning angle ± | 27.53 ° |
| Diameter of incident spot c (mm) | 15-20 |
| Threaded interface | M85 * 1 |