Obtaining Uniform Flat-Field Images

October 1, 2020
October 1, 2020

When measuring uniformity, in order to minimize cosine falloff in imaging systems with wider field of view lenses, it is important to have a light source that produces uniform illumination across the entire field of view.  The equipment listed below can be deployed to produce uniform images that fit the spectral requirements and field of view of your imaging system:

Field of View Visual and/or Narrow Band  Broad Spectrum VIS+IR / SWIR
<= (80°, ~110°) Imatest Lightbox Gamma Scientific RS-7-1 (80°)
<= 180°   Gamma Scientific RS-7-6 (180°)
<= 300° Colorspace LB2  

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