FOCUS Inc

optical components
objectives
fine mechanics parts and assemblies

optical coatings and interference filters

Optical coatings and interference filters

The department of optical coatings and interference filters of FOCUS Inc. manufactures optical coatings as well. We coat our substrates and substrates of customers with the next types of coatings:

anti-reflection: single layer, broadband, laser anti-reflection coating, ultraviolet anti-reflection and far infrared anti-reflection
metalllic: bare aluminium, protected aluminium, enhanced aluminium, ultraviolet aluminium and ultraviolet enhanced aluminium
dielectric
metallic&dielectric
beamsplitting
interference filters: color separation, longwave pass filters both ultraviolet, visible and infrared, narrow and ultranarrow band filters
another coatings accordingly with the customer specification

The nterference filters can be made with contrast ratio up to 10⁶ or greater for various applications.