Infra-Red MTF System – Beam-Steering Type

Source: Image Science Ltd

	Infra-Red MTF System – Beam-Steering Type

The Infra-Red MTF System measures the Modulation Transfer Function (MTF) of thermal imaging lenses and telescopes in both the 3-5 um and 8-12 um wavelength bands. Other optical parameters, such as Effective Focal Length (EFL), Distortion, and Field Curvature also may be measured. 

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The Beam Steering System has the advantage that the lens under test can be mounted directly onto the optical table, and thus the mounting of large systems is not a problem. This configuration also has the advantage that focal systems can be easily tested by the addition of a small swinging arm module. This is shown in the photograph.

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