Optical Coatings

Optical components and coating service

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CILAS is an expert in the design and manufacturing of optical thin film coatings. By using dense technologies, CILAS optical components ensure the highest performances in the most severe environments.

CILAS product line includes complex optical compenents and optical coatings for large size optics up to 2m x 2m, all suited for defense, space, astronomy, scientific ans industrial applications.
CILAS operates dense coating technologies, including the largest optical coating patform in Europe using magnetron sputtering, and is equipped with state-of-the-art metrology and qualification means in cleanroom environment.

An experienced team is at your service from design to industrial production through project management, according to ISO standards.

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Optical coatings product line

Metallic coatings Metallic coating
Metallic coatings

CILAS offers a large range of metallic coatings manufactured with magnetron sputtering process.

  • Silver coatings, protected and enhanced, meet reflectivity needs in visible range up to 16µm, for industrial and space programs.
  • Aluminium coatings, protected and enhanced, meet reflectivity needs in lower spectral ranges, for industrial and astronomu programs.
  • Bare gold coatings are a solution for electrical conductivity purposes, as well as reflectivity needs in IR range.

All these coatings are suitable for Zerodur@, SiC, titanium, stainless steel and vairous aluminium types on components up to 2 meters by 2 meters.

Coatings catalog and specific designs available upon request.

Protective coatings Protective coating
Protective coatings

CILAS offers protective coatings, either metallic or dielectric with accurate thickness and high uniformity. Magnetron sputtering deposition allows dense and efficient protection against severe environments such as solar illumination, humidity, atomic oxygen.

All these coatings are suitable for glasses, Zerodur@, SiC, titanium, CFRP, stainless steel and various aluminium types on components up to 2 meters x 2 meters.

Coating catalog and specific designs available upon request.

Black coatings Black coating
Black coatings

CILAS offers black coatings to mitigate straylight issues in optical systems, such as camera objectives for any spectral range between 380nm to 2,5µm.

Such thin film coating with accurate thickness is also implemented on mechanical slits for optical diffraction.

Thanks to the dense manufacturing technology, CILAS black coatings withstand severe environment conditions, for industry, scientific and space programs.

All these coatings are suitable for Zerodur@, SiC, titanium, stainless steel and various aluminium types on components up to 2 meters x 2 meters.

Coating catalog and specific designs available upon request.

Dielectric coatings Dielectric coating
Dielectric coatings

CILAS offers optical components and dielectric coatings from anti-reflection coatings to band pass filters and edge filters.

A wide range of optical coatings is available from 300nm to 2,5µm for imaging purpose in industry, astronomy or space programs and for powerful laser chains.

All these coatings can be applied on high quantities and large size components with typical dimensions up to 2 meters for anti-reflection coating, up to 400mm for dielectric mirror or dichroic, up to 200mm for polarizer and band pass filter.

Coating catalog and specific designs available upon request.

Coatings for laser applications

Optical coatings for industry

With cutting-edge capabilities and experience, CILAS is the expert for industrial programs.

CILAS designs and manufactures specific dielectric coatings for industrial applications, such as the display screen market on large dimension windows, from 1m to 1.8m long.

Dielectric coatings Dielectric coating

Optical coatings for astronomy

CILAS has manufactured various complex components integrated into telescope instrumentations, like IRDIS and CPI instruments for SPHERE of ESO’s Very Large Telescope.

In order to meet the requirements of worldwide astronomers, CILAS relies on its expertise and a large range of production equipment.

optical coatings multispectral filter

Optical coatings for space

CILAS has been involved in ambitious missions like Supercam for the NASA Perseverance Rover, satellite programs such as COMS with AIRBUS DS, Sentinel 2 with ESA, Proba-V with AMOS, TROPOMI with SRON, etc.

CNES and AIRBUS DS have entrusted CILAS and WINLIGHT with the design and manufacturing of the optical components for the Microcarb Instrument, aimed at measuring the global CO2 distribution in the atmosphere.

Perseverance SuperCam Mars2020
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    CILAS has designed and manufactured coatings on the SuperCam instrument on Perseverance rover.

    Optical coatings for scientific programs

    Thanks to a unique expertise in the design of optical coatings and manufacturing processes, CILAS takes part in exceptional scientific programs.

    For the Laser  MegaJoule Program, CILAS manufactures the large silver coated reflectors integrated into the laser amplifiers.

    Cilas Reflectors for the LMJ laser amplifiers
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