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Thin film coatings are extremely thin layers of materials (such as TiO2, SiO2, MgF2, gold, aluminum etc…), which can be applied to the surface of a substrate like glass, metal or germanium, to effect a change in its optical properties. Effects such as reflection, refraction, anti reflection and conductivity can be produced and modified by expert calibration of the number of layers and the respective thicknesses of the thin film coatings in relation to the incidental wavelengths of light.
Attenuation Filter Coatings
At Reynard Corporation we are proud of possessing over 30 years of manufacturing experience, supplying the highest quality optical components and thin film coating services to the aerospace, military and commercial markets. Amongst the thin film coatings we provide are attenuation filter coatings, which can be applied to our own range of high quality optical components and substrates, or may be applied to a substrate that you provide to us. Attenuating filter coatings, at the most basic level, are thin film coatings, which reduce the amount of light energy transmission in an optical system.
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Circular Variable Neutral Density Filters or CVND filters, used in optical instruments to vary light. These filters are designed to attenuate light as function of rotation.
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