AEH tested, with a client, the ability of metal foils and polymer films to form membranes with optically useful surfaces such as cylindrical conic sections (SPIE: 5494-50, 2004). AEH subsequently explored the concept using non-linear structural solution sequences in MSC/Nastran.
AEH’s study identifies trade-offs among the material properties, dimensional properties, initial conditions and loading. It also provides the optomechanical engineer design tools to minimize the surface figure errors in real, non-idealized, clear apertures. For instance, compensate for defects in the membrane such as non-uniform thickness, variable properties and non-planar initial membrane shapes.
AEH: Cutting-edge engineering for cutting-edge systems.