Idealized Lens Functions

The idealized lens function works without information about the actual lens surface and material. In the spatial (x) domain, it defines

  • the change of wavefront phase according to different lens types, and, therefore
  • also the change of the spatial frequencies (ray directions) that follows from the wavefront phase.

The lens functions are defined in focusing and collimation mode respectively, as their design working modes. Additionally, three different lens function types are available – they defines the relation between e.g. the angle of incidence and the location of the focal position.

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