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Windows are used to isolate different physical environments while allowing light to pass. A window is usually parallel and is likely to be anti-reflective coated. UPT offers all kinds of custom-made windows according to customers’ requirement:
Telecom Optical System
Laser Optical System
Instrument Optical System

Material: | BK7 Grade A Optical Glass |
Typical Diameter (Φmm) | 8.0, 10.0, 12.7, 15.0, 20.0, 25.4, 30.0, 50.8 |
Typical Thickness (mm) | 0.5, 1.0, 2.0, 3.0, 5.0, 6.0 |
Diameter Tolerance (mm) | +/-0.2 (General), +0.0/-0.02 (High Precision) |
Thickness Tolerance (mm) | ±0.2 (General), ±0.05 (High Precision) |
Clear Aperture | >80% (Small Size), >95% (Large Size) |
Parallelism | 3 min. (General), 3 sec. (High Precision) |
Surface Quality | 80/50 (General), 10/5 (High Precision) |
Flatness (per 25mm@633nm) | λ(General), λ/10 (High Precision) |
Bevel (face width x 450) | <0.25mm |
Coating | Uncoated, AR, HR, PR, Coating, etc. |

| Registration Date | 2020/05/26(Year/Month/Date) |
|---|---|
| Buyer / Seller in EC21 | Both |
| Business Type | Manufacturer |
| Year established | 2018 |
| Employees total | 51 - 100 |
| Annual revenue | USD 2,000,001 - 5,000,000 |
| Company | United Photonics Technology |
|---|---|
| Address | Bulding 6 2nd Floor, No. 26 Chang Long middle Road, Phase I of Minhou Tieling Industrial District,FFuzhouFujian350100China |
| Phone | 86 - 0591 - 83055970 |
| Contact | shelly |