Specification

Design Wavelength:                          1.5um

Design Index:                                  n=1.425

Dimension Tolerance:                       +/-0.2mm

Paraxial Focal Length Tolerance:       ±2%

Centration:                                    3 arc minutes

Clear Aperture:                              >85%

Surface Figure:                               l/4@632.8nm

Surface Quality:                              60/40 scratch/dig

Bevel:                                            Protective Bevel