National Physical Laboratory

Masks for testing image resolution

Spiral scanning maskSpiral scanning maskĀ Raster scanning maskRaster scanning maskĀ 

Two types of mask are available:

Raster scanning

  • Square masks for instruments that employ raster scanning

  • Features of 120-440 mm

Spiral scanning

  • Circular masks for instruments that employ spiral scanning

  • Features of 50-800 mm



Last Updated: 25 Mar 2010
Created: 15 Dec 2009


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