Spherical Glass Lenses

Plano-convex is close to best form for a focusing lens
Focusing or optical imaging
Focal Length:f=      R         
                                (n-1)
n:refractive index 

R:radius curvature

Plano-convex lenses are useful for a wide range of applications. These lenses are manufactured from BK7Agrade A optical glass and are supplied uncoated. Anti-reflection coatings are available as listed earlier in this section. To order an anti-reflection coated lens simply append the wavelength in nanometers to the product number. These lenses may also be used as mirror blanks if a convex surface
mirror is required. When used to focus a collimated beam, the light should be incident on the curved surface of the lens. These plano-convex lenses may be combined with other lenses to form complex imaging systems.

Part NO.                      Type                         Transmittance                                       Wavelength Covered                                         

·VAR                   ·Single Wavelength                ·≥99.5% for 0°AOI                     ·193nm, 248nm, 308nm, 266nm, 355nm, 532nm,             

                                                                               ≥99% for 45°AOI                       633nm, 1064nm, 1550nm, 2100nm, 2940nm, 10600nm  

·DAR                   ·Dual Wavelength                  ·≥99.5% for 0°AOI                     ·355nm, 532nm, 633nm, 1064nm, 1550nm, 2100nm,       

                                                                               ≥99% for 45°AOI                       2940nm, 10600nm+Other wavelengths                            

·BBAR                  ·Broadband                          ·avg≥99% for 0°AOI                   ·248-420nm, 440-680nm, 650-1000nm, 1000-1500nm,     

                                                                              avg≥99% for 45°AOI                   1250-1650nm