Whenever light passes across solid boundaries or is reflected by them: Optical coatings play a major role here. Whether we have a lens glass, a foto objective, a computer monitor, a laser or a wavelength division multiplexer for communications: A high quality of these products can be achieved only with the help of optical coatings.

They can make optics invisible by the elimination of unwanted reflections or they allow mirrors which reflect the light completely or partially, just as needed. Sophisticated optical technologies result in more and more compact, powerful and versatile products which demand optical coatings with a tailored functionality in amplitude or phase.

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