Optimized circularly symmetric phase mask to extend the depth of focus
Spotlight summary: Conventional imaging systems typically have a fixed trade-off between depth of focus and resolution. In recent years pupil engineering has allowed the design of systems to improve the depth of focus. In this interesting and well-organized paper the authors use a novel approach, based on rational functions to design circularly symmetric phase masks that extend the depth of focus of imaging systems.
Technical Division: Information Acquisition, Processing, and Display
ToC Category: Fourier Optics and Signal Processing
|OCIS Codes:||(070.0070) Fourier optics and signal processing : Fourier optics and signal processing|
|(100.5090) Image processing : Phase-only filters|
|(110.0110) Imaging systems : Imaging systems|
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