Laser Grade BK7A Parallel Windows
Laser Grade BK7A Parallel Windows
Product name : Laser Grade BK7A Parallel Windows
Description :
● General purpose plane windows
● Flat polished surfaces
● Laser finish both sides
● Uncoated
These general purpose plane windows are polished to λ / 10 flatness except where indicated otherwise. They are intended for transmissive use and are parallel to better than 10 arc seconds.
*** Select a coating appropriate to your application or contact us with your special coating requirements. ***
Specification
| Material | BK7A |
| Surface Flatness | If thickness>= 1.5mm : Lambda/4@ 633nm If thickness>1.5mm : Lambda /10 @ 633nm |
| Surface Quality | <10/5 (both sides) |
| Parallelism | <10 arc sec |
| Diameter Tolerance | <+ 0.00 / – 0.20 mm |
| Thickness Tolerance | <± 0.25 mm |
| Clear Aperture | ≥ 85% of central diameter |
| Bevel | 0.3 mm (typical) x 45° |
 |
|
| Model | Description | Diameter D (mm) | Thickness t (mm) | Price(USD) | Quantity | |
|---|---|---|---|---|---|---|
| 0 | PW-1206B | Laser Grade BK7A Parallel Window | 12.7 | 6.35 | - | |
| 1 | PW-1906B | Laser Grade BK7A Parallel Window | 19.1 | 6.35 | - | |
| 2 | PW-2502B | Laser Grade BK7A Parallel Window | 25.4 | 1.5 | - | |
| 3 | PW-2506B | Laser Grade BK7A Parallel Window | 25.4 | 6.35 | - | |
| 4 | PW-3809B | Laser Grade BK7A Parallel Window | 38.1 | 9.525 | - | |
| 5 | PW-5009B | Laser Grade BK7A Parallel Window | 50.8 | 9.525 | - | |
| 6 | PW-7612B | Laser Grade BK7A Parallel Window | 76.2 | 12.7 | - |