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Beam Collimators for Optical Testing

Optical Surfaces Ltd is a leading supplier of Beam Collimators tailored to enable precise Modulation Transfer Function (MTF) testing of your optical systems.

MTF is a trusted technique for objectively evaluating the image-forming capability of optical systems. Reflective beam collimators are mirror 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. As a consequence, reflective beam collimators are the device of choice for performing polychromatic MTF measurements over extended wavelength ranges.

The high stability and performance of Optical Surfaces reflective beam collimators is achieved using a zero expansion off-axis parabolic mirror, manufactured to better than lambda/10 p-v surface accuracy. The optics within the beam collimator, are secured by the use of stress-free mounts and come pre-aligned for optimum performance. The off-axis design of Optical Surfaces beam collimators produces no central obscuration thereby ensuring highly efficient transmission is obtained.

The all-reflecting design of Optical Surfaces beam collimators is achromatic and with aluminium / magnesium fluoride coatings can operate from the UV to the infrared without adjustment. Using zero expansion glass mirror substrates these beam collimators provide exceptional operational stability. Each system has an output port datum plane giving a defined distance to the focus. All Optical Surfaces beam collimators provide a 20mm field ensuring full compatibility with standard black bodies.

A wide choice of options enables Optical Surfaces beam collimators to be tailored to exactly suit your MTF optical testing requirements. For further information on reflective beam collimators for MTF optical testing please visit www.optisurf.com/index.php/products/reflective-collimators/ or contact Optical Surfaces Ltd. on +44-208-668-6126 / [email protected].
 

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