The challenges of today’s optical designs require sophisticated and precise non-spherical surface shapes. A new surface formulation specified by G.W. Forbes provides designers with a “freeform” surface where the coefficients are orthogonal (similar to Zernikes), but in addition, provide insight and control over the manufacturability of the surface. These attributes can improve the design process and lower the manufacturing costs for the components that use these surfaces.
A CODE V surface using the Forbes Freeform formulation is available as a User-Defined Surface, which you can download from the Customer Support Portal.