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Ophthalmic optics

Smart applications for RX and stock lens production

For decades, users of optical eyewear - be it sunglasses or prescription glasses - have been personalizing their individual glasses ever further. However, this no longer only applies to the type of frames or their colors, but increasingly to the look and the functional properties of the lenses themselves. Anti-reflection coatings improve the transparency of light passing through the lenses for the user, providing the person wearing them with a clear view. Other coatings allow for easier cleaning of the glasses or achieve a higher scratch resistance. Even anti-static properties are possible and needless to say, as are a large variety of colors. Anti-reflection (AR) coatings
Bühler Leybold Optics offers several anti-reflection coatings for the ophthalmic industry in order to meet all our customers’ quality demands. All coatings are available as part of our comprehensive machine portfolio and in order to provide every customer with a competitive solution, they are independent of the production size. Standard setups are available in three reflective colors: green, blue and gold and provide high overall quality, tested in accordance with industry standards. Our AR coatings can be customized to meet all special customer requirements and are often used by as a perfect base to develop own brand coatings.

Fashion coatings: LEYBOLD OPTICS OPAL, LEYBOLD OPTICS TIGER’S EYE & Co
Bühler Leybold Optics proprietary fashion coatings combine fashion and function. Our beautiful fashion coatings are available in several reflectivity grades. The LEYBOLD OPTICS OPAL series represents the fashionable bright reflective coatings. LEYBOLD OPTICS TIGER’S EYE is a medium reflective coating with slightly lower reflectivity to be used on low tints.
In addition to the color-intensive, fashion mirror coatings, Bühler Leybold Optics offers several flash-coatings with a slight increase in front-side reflectivity. Fashion coatings are available in red, blue, green, gold and silver color shades.

Color coatings
LEYBOLD OPTICS TOPAZ is one of Bühler Leybold Optics’ reference processes for eyeglass color coatings. These treatments facilitate the production of sun-protection lenses in gray or brown, tinting is impossible or uneconomic in these colorings. Low tints with an absorbance of up to 20% can be used together with a regular anti-reflection (AR) layer system. High tints in a range of 75% … 80% absorbance come with an integrated broadband anti-reflection (BBAR) system. LEYBOLD OPTICS TOPAZ coatings are suitable for nearly every kind of substrate/hard-coat combination and can be applied on glass substrates as well.

Hydrophobic and oleophobic coatings
Bühler Leybold Optics offers solutions for every demand in the field of hydrophobic and oleophobic coatings, meeting the most challenging requirements with proprietary processes and materials which set performance benchmarks. LEYBOLD OPTICS SUPERCLEAN will complement your production with a long-lasting, superior surface treatment, with outstanding surface and lifetime performance data.
LEYBOLD OPTICS KINGCLEAN delivers excellent oleophobic and “easy to clean” properties, combined with slightly lower hydrophobic surface parameters. It is the material of choice, where “haptics” are more important than laboratory data. LEYBOLD OPTICS REGULAR HYDROPHOBIC provides the solution for standard applications with excellent hydrophobic and oleophobic properties.

About Bühler Leybold Optics

In the beginning of 2012, Leybold Optics GmbH became a subsidiary of the Bühler Group based in Switzerland: Business Unit Leybold Optics, legally rebranded to Bühler Alzenau GmbH in 2015, operates under the Advanced Material Division within the Bühler Group.