| Precision 
              Optics
             Introduce
             Windows
           
              Lenses 
            
             Prisms 
             Waveplates 
               Multi-Order 
              Waveplates 
               Low-Order 
              Waveplates 
               Zero-Order 
              Waveplate 
               True-Zero-Order 
              Waveplate 
               Custom 
              Waveplates 
               Achromatic 
              Waveplate 
               Fresnel 
              Rhomb Prisms 
               Polarization 
              Rotators 
               Mounts 
              and Holders 
             Beamsplitters 
             Filters 
             Laser 
              Optics 
             Coloured 
              Optical Glass 
             IR 
              Materials 
             Coating
             Custom 
              Optics
           | 
               
                |  |   
                | 
                     
                      | 
                           
                            | Specifications |  |   
                            | Material | Crystal 
                              Quartz |  |   
                            | Dimension | +0.0, 
                              -0.2mm |   
                            | Wavefront 
                              distortion | <l/8 
                              @ 632.8 |   
                            | Retardation 
                              tolerance | <l/500 |   
                            | Parallelism | <1 
                              arc second |   
                            | Surface 
                              quality | 20/10 
                              scratch and dig |   
                            | Clear 
                              aperture | >80% |   
                            | AR/AR 
                              coating | R<0.2% 
                              at central wavelength |  |   
                      | 
                           
                            | f (mm) | ¦Ë/4 
                                Retardation | ¦Ë/2 
                                Retardation |   
                            | Uncoated | Coated | Uncoated | Coated |   
                            | 10.0 | WP6401 | WP6411 | WP6201 | WP6211 |   
                            | 12.7 | WP6402 | WP6412 | WP6202 | WP6212 |   
                            | 15.0 | WP6403 | WP6413 | WP6203 | WP6213 |   
                            | 20.0 | WP6404 | WP6414 | WP6204 | WP6214 |   
                            | 25.4 | WP6405 | WP6415 | WP6205 | WP6215 |  |  
                     
                      |  | The 
                        standard waveplate wavelengths (nm) of 
                        Dream Lasers' waveplates: 248nm, 266nm, 
                        355nm, 400nm, 488nm, 514nm, 532nm, 632.8nm, 780nm, 800nm, 
                        810nm, 850nm, 1064nm, 1310nm, 1480nm, 1550nm. |   
                      |  | Please 
                        refer to  
                        the Glossary 
                        and Technology 
                        for more information about waveplates. |   
                      |  | Please 
                        refer to Coating 
                        Chapter for more infomation of coating. |   
                      |  | Other 
                        sizes and coatings are available upon request. |   
                      |  | Please 
                        refer to Mount 
                        for Waveplates |  |  |