Although only 12 field points can be defined in the Field dialog, the FMDO optimization operand allows these points to be re-defined on the fly during optimization. This means that any operand that uses a field number as an argument can be computed anywhere in the field of view. This article explains how to use this powerful capability.

This article explains:

• Why default thickness boundary constraints are not always sufficient when optimizing aspheric components

• How the FTGT and FTLT optimization operands can be used to successfully constrain the thickness of a surface at intermediate aperture locations

This article is also available in Japanese.

This article demonstrates how to optimize at any intermediate surface or surfaces, using the default merit function tool and the IMSF operand.

This article describes a fast method to identify which surfaces in a design will best benefit from aspherization.