| Precision 
              Optics
             Introduce
             Windows
               BK7 
              Windows
			   
               Fused 
              Silica Windows
               CaF2 
              Windows 
               Sapphire 
              Windows 
              Lenses 
             Prisms
             Waveplates
             Beamsplitters
             Filters 
             Laser 
              Optics 
             Coloured 
              Optical Glass 
             IR 
              Materials 
             Coating
             Custom 
              Optics
           | 
               
                | Calcium 
                    Fluoride (CaF2) Windows 
                 |   
                | 
                     
                      | Specifications |   
                      | Material: Calcium Fluoride single crystal Diameter Tolerance: +0.0, -0.1mm
 Thickness Tolerance: ¡À 0.2mm
 Clear Aperture: >80%
 Parallelism: 1' arc minute
 Surface Quality: 80-50 scratch and dig
 Flatness: ll/2 at 632.8 nm
 Bevel: <0.25mm x 45¡ã
 
 |  |   
                      | 
                           
                            | f 
                                (mm) | T 
                              (mm) | Part 
                                No |   
                            | 10.0 | 6.0 | WN0201 |   
                            | 12.7 | 6.0 | WN0202 |   
                            | 25.4 | 6.0 | WN0203 |   
                            | 38.0 | 6.35 | WN0204 |   
                            | 50.0 | 6.0 | WN0205 |   
                            | 50.0 | 10.0 | WN0206 |   
                            | 76.2 | 10.0 | WN0207 |  |   
                      | 
                           
                            |  | Please 
                              refer to the Material 
                              Chapter for more information about CaF2. |   
                            |  | Please 
                              refer to Coating 
                              Chapter for more infomation of coating. |   
                            |  | Other 
                              sizes and coatings are available upon request. |  |  |  |