F. Kudo and S. Komatsu: Comparison of EDOF characteristics between Cubic phase mask and Free-form phase mask for Wavefront Coding, Extended Abstracts (Optics and Photonics Japan 2009) (2009) 100-101. (24aF2)

A series of performance comparisons between the free-form phase mask (FPM) and the cubic phase mask (CPM) in extending the depth of field are carried out by arranging the thickness of the phase mask. Computer simulation results show that the FPM provides an advantage over the CPM in several aspects. In addition we discuss further improvement of the FPM.