Image Science Ltd

Image Science designs and manufactures optical test equipment for assessing the quality of visible and infra-red lenses.

Modulation Transfer Function (MTF)

Phase Transfer Function (PTF)

Effective Focal Length (EFL)

Flange Focal Length (FFL)

Field Curvature

Distortion

Vignetting

Astigmatism

Chromatic Aberration

Field of View (FOV)

Absolute Transmission

Encircled Energy and Ensquared Energy