Large-format precision: BTE coats substrates up to 1.9 meters in diameter

Bte Bedampfungstechnik GmbH sets standards in the coating of large-format substrates.

Coating System for optical coatings in large sizes

The inline coating system can be used to coat large-format mirrors in high volumes.

With highly specialized systems for metallic and dielectric coatings, substrates with a diameter of up to 1,900 mm can be processed with excellent spectral uniformity over the entire surface.
Thanks to automated ultrasonic and manual cleaning processes, maximum cleanliness is guaranteed even with large geometries. This is a basic requirement for the quality of optical coatings.
 

A variety of technologies for every requirement


Bte Born offers various coating technologies for different formats:

  • EBE/IAD: For round substrates up to approx. 1,900 mm in diameter
  • Magnetron sputtering: For rectangular formats up to 330 × 280 mm, ideal for wafers
  • Inline system: For series production up to 850 × 800 mm

The in-house inline coating system enables the economical production of large-format mirrors and filters in large quantities.

 

Wide range of coating options

The portfolio includes

  • Highly reflective mirrors
  • Anti-reflective coatings
  • Optical filters
  • Beam splitters
  • UV and IR reflectors

 

Flexible substrate selection

Coating options include

  • Glass (e.g. borofloat, B270, float glass)
  • Glass ceramic
  • Quartz
  • Metals
  • Plastics (e.g. Zeonex, PC, PMMA with hard coating)

 

Applications with vision

The large-format coatings are used in:

  • Telescopic optics
  • Head-up displays in the automotive sector
  • UV reflectors with large dimensions
  • Deflecting mirrors for industrial applications
  • Mirrors for surface irradiation

With this combination of technical precision, format diversity and application expertise, Bte Born offers large-format optical coatings for the challenges of tomorrow.