VTD Vakuumtechnik Dresden GmbH
Niedersedlitzer Straße 75
01257 Dresden

Phone:+49 351 - 2805-0
Fax:+49 351 - 2805-240
E-Mail:vtd@wir-wollen-keinen-spam-federalmogul.com

Optical coating


Numerous precision engineering components have an optical function. Optically active coating systems have the task of providing or optimising the desired functionality. These coatings are often deposited in vacuum processes by different procedures (evaporation, sputtering).

The deposition of optical coating systems pursues different objectives such as:
  • Enhencement of reflexion
  • Improvement of transmission
  • Precise definition of reflexion / transmission / absorption
All of these characteristics can be achieved at a precisely specified wavelength or in a spectral range from the ultraviolet to the infrared spectrum via the visible range.

The reflexion of metallic surfaces and/or the use of interference effects from combined dielectric coating materials are primarily responsible for the effectiveness of an optical surface coating.

Glass, plastic, metal or ceramic in particular are used as a substrate for the components.