The use of light for diagnostics and therapy in life science applications has been steadily expanding for many years, as light is an effective means for the non-destructive examination of living samples or for the manipulation of tissue in laser surgery. Light can be used to image the basic elements of life, as well as to detect single molecules or proteins. The manifold use of light requires sophisticated methods for controlling the light propagation path and its spectral composition. Optical coatings are widely used for both purposes and play a key role for the functionality of optical instruments. Based on our extensive industry experience and years of innovation, Materion Balzers Optics produces a wide range of sophisticated coatings and coated optical components to enable even the most complex diagnostic and analytical instrumentation. Our broad range of coating deposition technologies affords customers flexibility and many design options to achieve the best optical filter solution while achieving budgeted cost goals.