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Coatings


Product Information

About Coatings

SCHOTT Advanced Optics performs standard and custom-designed coatings. We deposit thin films onto glass and other substrates for spectral wavelengths between 200 and 3000 nm.

Important coating types include:
  • Reduce reflection: Anti-reflective (AR) coating, spectral range in UV, VIS, IR
  • Increase reflection: mirror coating (metallic or dielectric)
  • Beam splitters
  • Polarizers
  • Neutral density filter coating
  • Laser coating with high resistance to flux
  • Demist coating RIA 2
  • Bandpass Coating
  • ITO coating
  • SIO2 protective coatings
”Hard coatings” do not need any additional protection, because the layers usually consist of very stable metal oxides. ”Soft coatings” usually require additional measures to protect the filters. This can be achieved by a supplementary cementing with a suitable glass.

Within certain areas of the UV spectrum it is not possible to use optical elements due to the inherent absorption involved. In such cases the coated substrates are fitted into appropriate mounts and protected by suitable glass.

Benefits

SCHOTT Advanced Optics is a trusted supplier of coated products due to our long experience and reliable process stability. With our expertise, we can provide:
  • Different types of coating on substrates of different sizes and materials
  • Different values for half width (HW)
  • Continuously alterable half widths (i-line filters, band passes)
  • Ion plating: specific temperature stability possible


Key Applications

Coatings are often required for substrates used in:
  • Optical systems
  • Laser systems
  • Illumination
  • Space applications
  • Defense applications
  • Medical applications
  • Industrial sectors.

Materials Used

All types of materials can be coated:
  • Borosilicate glass
  • Contrast enhancement glass types, etc.
  • Filter glass
  • Fused silica LITHOSIL®
  • Optical glass
  • ZERODUR® glass ceramic


Forms of Supply

Our standard forms of coated substrates range from 1 mm to 400 mm. Larger dimensions, such as 900 x 900 mm, AR and Aluminum mirror plates are also available.

Specifications

We can coat substrates with diameters between 1 mm and 400 mm. The spectral range is between 200 and 3000 nm. Since a very broad range of specifications can be met, please use the bandpass-, longpass-or shortpass-filter questionnaire in the interference filter catalog.

Ion Plating (IP)
  • Plasma Assisted Deposition with the Leybold-Advanced Plasma Source (APS)
  • Cold electron beam evaporation


Quality Assurance

We measure the quality of our coating with a spectrophotometer (measurement between 200 nm and 3000 nm), and also conduct direct or indirect monochromatic monitoring with quartz crystal and optical thickness measurements.

We can also deliver test glasses upon request.

Any Related Information

You could be interested in our low Tg optical glasses for precision molding.

Contact

Advanced Optics
SCHOTT AG

Hattenbergstrasse 10
55122 Mainz
Germany
 +49 (0)6131/66-1812
 +49(0)3641/2888-9047
E-mail
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