From: pcdhSpamMeSenseless@electrooptical.net   
      
   On 8/14/2015 11:35 PM, Helpful person wrote:   
   > On Friday, August 14, 2015 at 12:06:34 PM UTC-4, Phil Hobbs wrote:   
   >>   
   >> Probably be okay except for the moire issue.  The squares are   
   >> pretty big, so the diffraction will nearly all be at small angles.   
   >>   
   >> Cheers   
   >>   
   >> Phil Hobbs   
   >>   
   > Moire could be eliminated with a random pattern of spot position and   
   > size.  Of course the definition of random is a little tricky.  One   
   > could end up with large dead areas.   
      
   If you can design your own mask, you could use something like a 2-D   
   Barker code--zero correlation except at zero offset.   
      
   Cheers   
      
   Phil Hobbs   
   --   
   Dr Philip C D Hobbs   
   Principal Consultant   
   ElectroOptical Innovations LLC   
   Optics, Electro-optics, Photonics, Analog Electronics   
      
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