Calculated transmission of a short-pass-, long-pass- and monochromatic filter.
These filters can be realized on large substrates in a cost-saving way by an
economical sol-gel process

http://www.inm-gmbh.de

Contact:
Prof. Dr. M. A. Aegerter,
Coating Technology
Department
Tel.: ++49-681-9300-317
Fax: ++49-681-9300-223

• Formation of optical filters in UV, visible and near infrared range on large-scale substrates by cost-saving multilayer sol-gel deposition

Methods

• Up to 15 different thin layers of e.g. SiO₂, TiO₂, SnO₂, Nb₂O₅, SiO₂-CeO₂, SiO₂-TiO₂, ZrO₂, HfO₂ etc. can be deposited by a conventional or angle-dependent dip-coating process. The optical properties can be adjusted by the thickness of the individual layers with a high grade of tolerance

• High optical quality filters can be obtained with tailored properties by dip-coating on large substrates with sizes up to 1 m²
• The sol-gel process is a cost-saving method with low material consumption and inexpensive equipment required for the coating device

• Antistatic antireflection filter produced by the dip-coating process

Measured reflection of an antistatic antireflection filter coated on both sides with the given data

• Antistatic filters
• Colored filters
• Interference filters as:
• Band pass filters
• Antireflection filters
• Absorption filters
• Beam splitters, etc.