RHSAiryPSF:

Path: Imaging/PSFUtils

% Point Spread Function for an Airy function.
   The units within the pixel frame are microns. The aperture and
   wavelength are specified in millimeters. The wavelength is in
   nanometers.

   Since version 2014.1
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   Form:
 	f = RHSAiryPSF(x,y,d)
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   ------
   Inputs
   ------
   x   (:,:)       X coordinates (um)
   y   (:,:)       Y coordinates (um)
   d   (1,1)       Data structure
                   .d	(1,1) Data structure for PSF
                             .a      (1,1) Aperture     (mm)
                             .lambda (1,1) Wavelength   (nm)
                             .f      (1,1) Focal length (mm)
                   .r	(2,:) Centers of PSF (um)
                   .i	(1,:) Intensities of PSF
   -------
   Outputs
   -------
   f           (n,m)  Pixel output

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