stom optical arrays with freeform shapes, high aspect ratios and 100% fill factor. The 3D-Printing approach allows for almost unlimited design freedom and multiple options for replication. 

Specifications:

Array lateral dimensions from <100 x 100 µm² to 6″ wafer size

Lenses or unit cells sized from 3 µm to 2 mm, fill factors up to 100%

Surface roughness: <10 nm RMS

Shape errors <diameter/1000 PTV

Element aspect ratios (height to diameter) of > 10

Printing on any flat substrate like glass, sensors or fiber tips.

Alignment precision in x, y and z: < 1 µm

Custom geometry adaptions

Biocompatible optics

Freeform elements, variable pitch, undercuts, randomised structures

Mastering Examples:

Step & repeat scale-up

Soft stamps

Hard stamps

Array Examples:

Micro-displays

Coupling optics

Sensors