Spherical cap or dome of a vacuum coating system

Optical Coatings

Bte is your partner for designing and manufacturing high precision dielectric and metallic optical coatings using thin-film technology

Bte specialises in the design and production of high-precision optical coatings using advanced thin-film technology. Our expertise extends across various substrates, including glass, metal, plastic, and ceramic, allowing us to coat a wide range of surfaces to meet diverse industry needs. From mirrors and highly reflective coatings to various optical filters, beam splitters, metallic coatings and AR coatings, well-known suppliers from a wide range of industries rely on our solutions. We also offer ITO coatings. We customise our coatings precisely to your requirements, from individual layer design to series coating production. Additionally, we offer peripheral services such as glass cutting, measurement, and packaging solutions to ensure seamless integration into your manufacturing process. We are committed to providing innovative and high quality optical coating solutions tailored to your specific needs. Partner with us for reliable, highly accurate coatings that meet the demands of your applications.

Optical Coatings for different characteristics

Optical thin films play a pivotal role in altering the reflection or transmission characteristics of surfaces and optical components across various spectrums such as UV, IR, or VIS radiation. Among their diverse applications, they are commonly utilised for mirroring and anti-reflective coatings on surfaces, as well as in optical filters, where reflection is tailored based on wavelength selectivity.

These coatings can be broadly classified into metallic or dielectric coatings, depending on the materials employed. For instance, multilayer systems incorporating metals like aluminium or copper are used for applications such as reflectors and neutral density filters. On the other hand, dielectric coatings leverage a variety of materials to achieve precisely defined optical interference. This allows the incident radiation to be split into a transmitted and a reflected fraction.

The selection of coating material and technology is contingent upon specific application requirements, which encompass factors like thermal resistance, mechanical properties such as hardness and abrasion resistance, as well as resistance to solvents, UV radiation, weathering, and ageing. At Bte, we offer a broad range of different optical coatings for a great variety of applications.