Freeform Surfaces

Optical freeform surfaces are not rotationally symmetric surfaces. The surface has characteristics of asymmetric units, which require advanced machine kinematics for ultra-precision machining.

We have technical capabilities to realize freeform surfaces:

•  with diameters of 1 - 300 mm
•  with roughness (Ra) < 5 mm
•  with derivations < 1 µm.

With a slow tool servo (STS) on an ultra precision turning machine, we perform diamond processing of polymers (PMMA, Zeonex, PC, PS) and metals (nickel - phosphorus, aluminum, copper, brass).

Some applications:

•   Collimation of light
•   Beam shaping
•   Complex light distribution
•   Complex luminance distribution
•   Imaging
•   Minimization of optical components ­in systems
•   Head mounted displays (HMDs)
•   Heads up displays (HUDs)