Optical coatings and coating systems make it possible to modify optical performance to achieve specific effects.
Docter Optics uses advanced coating technology to coat optical components with anti-reflective or reflective coatings as well as with UV or IR filters.
Anti-reflective or anti-glare coatings involve the use of one or more layers of material to reduce reflection within a narrow range of the spectrum with a variable wavelength range (V coat) or expand the range of the spectrum with low reflection (W coat) as a function of a preferred wavelength.
Multi-coating with variable wavelengths ranges R ≤ 0.5%, simple or multiple-layer coating as a function of preferred wavelengths R ≤ 1.5% or 0.25%.
Coating in the form of front and rear surface mirrors increases the degree of reflection for specific wavelength ranges and applications.
- Aluminum mirrors R up to 92%
- Silver back surface mirrors R up to 96%
UV/IR Filter Coatings
Selective filters, which exhibit high transmissivity over part of the spectrum and lower transmissivity over the rest of the spectrum, are used as filters in the UV or IR or range.
Used alone or in combination with metallic coatings, SiO2 thin-film coatings increase resistance to mechanical abrasion and protect substrates against the effects of chemicals.