Optical windows are used very widely in the optical system. The proportion of sales of optical windows is near to 35% in the sales of all the products.

The following sheet is a reference for the quality of optical windows based on the material’s characteristic and dimension. Because Jiheng Optics mainly focuses on the custom products, So there is no standard products for you to choose, please contact our sales engineer for your requirement and below is the best quality of this product we can supply for your reference.

1.BK7 or UV F.S.  PS:(Tc have to accord to Dia/Tc>10)

         Diameter                                  Surface flatness           Wavefront distortion        S/D          parallelism

 5mm~50mm                                         λ/10                                 λ/8                    10/5           2arcsec

 60mm~100mm                                     λ/8                                   λ/8                     20/10         5arcsec

 110mm~140mm                                   λ/4                                   λ/6                     40/20         5arcsec

 150mm~190mm                                   1λ                                    λ/4                     60/40         1arcmin

2. Calcium Fluoride (CaF2)

 Diameter                     S/D           RMS 

 5mm~30mm               10/5          10Å

 35mm~50mm             20/10        10Å

 60mm~110mm           40/20        10Å

3.Silicon

 Diameter                    S/D               RMS 

 5mm~50mm              20/10              5Å

 55mm~90mm            40/20              5Å

 100mm~150mm        60/40              5Å

4. Zinc Seleide (ZnSe) or Gemanium (Ge)   PS:(ZnSe cylindrical lens is not available for Jiheng OPITCS)

 Diameter                S/D 

 5mm~50mm         40/20

 60mm~90mm       60/40