A leading European avionics/defence supplier is using a 235mm clear aperture beam collimator from Optical Surfaces, enabling the former to measure the quality of their imaging systems precisely from the visible to the IR using modulation transfer function (MTF) criteria.
As the demand for higher quality, higher resolution optical systems for integration into sophisticated imaging systems has become more prevalent, many designers and scientists have chosen MTF measurement as a flexible and accurate system characterisation tool. Beam collimators are optical assemblies that take divergent or convergent incoming light rays and produce parallel light output. They can be used to replicate a target at infinity without parallax. Beam collimators can be used to calibrate other optical devices, to check if all elements are aligned on the optical axis, to set elements at proper focus, or to align two or more devices.