-   Material: N-BK7
-   Thickness: 1 to 5 mm
-   Surface flatness: λ/2 to 2 λ (550nm). On request : λ/4 to λ/10
-   Parallelism: 5’ to 1’. On request : 30’’ to 2’’

-   Tolerance: ± 0.1 mm
-   Angle of incidence: 45°. On request : 0° - 30° - etc...

-   Dimensions: de 5 x 5 to 50 x 50 mm –  Ø 5 mm to Ø 50 mm   

Tolerance:    

       ± 0.05 @ 450 to 650nm

       ± 0.1 @ 400 to 450 and @ 650 to 700nm

On request:

       - Other dimensions, 
       - Other values
       - Specific wavelength

       - Other spectral range : 500-800 nm, 600-1000 nm, 800-1300 nm -  etc...