aspheres and freeforms

Aspheres and Freeforms

Highest accuracy standards using a wide variety of materials with leading-edge expertise.

Experience over decades in the production of precision lenses, in conjunction with the methodical advancement of our technological expertise, enables us to produce precision aspheres in volume at attractive prices. Mature, CNC machine based, technology with local correction methods in combination with state of the art metrology guarantees that your and your customers quality requirements are satisfied.

  • Shapes
    • Rotationally symmetric aspheres
    • Off-axis rotationally symmetric aspheres
    • Freeform surfaces
  • Materials
    • Optical glass, fused silica, glass
    • Crystalline materials, fused silica, CaF2, MgF2
    • Ceramic materials, e.g. Zerodur, SiC
    • E-Nickel
  • Parameters

    Parameters for aspheres and freeform surfaces are given in the following table:

    minimum diameter
    15 mm
    maximum diameter 300 mm
    sagitta error (dz) up to 0.1 µm
    slope tolerance 0.2‘ (sampling length 1 mm)