| Measuring way | Fizeau principle of interference |
| CAL | 25mm |
| Laser source | Semiconductor laser (IP =635nm) |
| Resolution of the | 795H*596V |
| Accuracy of plane test | PV λ/20,RMS λ/100 |
| Spherical surface accuracy | PV λ/10, RMS λ/50 |
| Power supply | AC 220V 50HZ |
| Standard accessories | 10-inch liquid crystal display |
