| Why choose us for window orders? | ||
| Ability | Other factories | HG OPTICS |
| Machine | Double polisher | Double polisher+Coninuous planet polisher |
| Ultrasonic Cleaning Equipment | Not have | have ultrasonic cleaning equipment. |
| Polisher powder | Use cheap one | Use the highest-grade polishing powder |
| Inspection Capability | For large-diameter optics, they are limited to the φ65 mm inspection range. | The D450 interferometer supports full-aperture inspection of your large window. |
| Achievable surface quality | 40/20 | 10/5 |
| Achievable surface shape | 1/6λ | 1/20λ |
| Payment terms | 50%deposit,50%before shippment | NET 30DAYS |
