| Precision 
              Optics
             Introduce
             Windows
           
              Lenses 
               Plano-Convex 
              Lenses 
               Double-Convex 
              Lenses 
               Plano-Concave 
              Lenses 
               Double-Concave 
              Lenses 
               Meniscus 
              Lenses 
               Cylindrical 
              Lenses 
               Achromatic 
              Lenses 
               Ring 
              Mount for Lenses 
             Prisms 
             Waveplates
             Beamsplitters
             Filters 
             Laser 
              Optics 
             Coloured 
              Optical Glass 
             IR 
              Materials 
             Coating
             Custom 
              Optics
           | 
               
                | 
                     
                      | CaF2 
                          Plano-Concave Lenses |   
                      |  |  |  |  |  |   
                | 
                     
                      | Specifications: 
                             
                         Material: 
                          Optical Grade CaF2 Single CrystalDesign Wavelength: 1.5mm
 Design Index: n=1.425
 Surface Quality: 80-50 scratch and dig
 Paraxial Focal Length: ¡À2%
 Diameter Tolerance: +0.0, -0.15mm
 Centration: 3 arc minutes
 Clear Aperture: >80%
 Surface Figure: l/4@632.8nm
 Bevel: 0.25 mm x 45¡ã
 |  |   
                      | 
                           
                           
                            | Part 
                                No.   | f 
                                (mm)   | f 
                                (mm) 
                                  | R1 
                                (mm)   | tc 
                                (mm)   | te 
                                (mm)   | fb 
                                (mm)   |   
                            | PV0301 
                               | -100.0 
                               | 25.4 
                               | 42.50 
                               | 2.0 
                               | 3.9 
                               | -101.4 
                               |   
                            | PV0302 
                               | -200.0 
                               | 25.4 
                               | 85.00 
                               | 2.0 
                               | 3.0 
                               | -201.4 
                               |   
                            | PV0303 
                               | -500.0 
                               | 25.4 
                               | 212.50 
                               | 2.0 
                               | 2.4 
                               | -501.4 
                               |   
                            | PV0304 
                               | -1000.0 
                               | 25.4 
                               | 425.00 
                               | 2.0 
                               | 2.2 
                               | -1001.4 
                               |  |  
                     
                      |  | Please 
                        refer to the Material 
                        Chapter for more information about BK7 glass, UV grade 
                        fused silica, Sapphire and CaF2. |   
                      |  | Please 
                        refer to  
                        the Glossary 
                        and Technology 
                        for more information about lenses. |   
                      |  | Please 
                        refer to Coating 
                        Chapter for more infomation of coating. |   
                      |  | Other 
                        sizes and coatings are available upon request. |   
                      |  | lPlease 
                        refer to Ring 
                        Mount for Lenses |  |  |