Ambiguity function as a design tool for high focal depth.

  title={Ambiguity function as a design tool for high focal depth.},
  author={Jorge Ojeda-Casta{\~n}eda and L R Berriel-Vald{\'o}s and Enrique Montes},
  journal={Applied optics},
  volume={27 4},
The optical transfer functions for variable focus error are contained as a single picture representation in the ambiguity function that is associated with the pupil function. This picture representation is shown to be useful for designing pupil functions that increase the depth of focus. We specify a criterion for an optical transfer function with low sensitivity defocus in terms of a nonlinear differential equation for the point spread function. Based on this approach, we design and compare… CONTINUE READING

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