Long Wave Pass & Short Pass optical filters
ECI's LWP longwave pass and SWP shortwave pass designs are all-dielectric, non-absorbing and exhibit excellent environmental durability even under severe conditions. These coatings are deposited with high energy that produces films with densely packed surface structures, superior surface qualities and stable film structures.

Standard and custom designs are available for deposition onto glass and semiconductor materials, fiber ends, fiber assemblies, polymers and other temperature sensitive materials.

• Typical LWP & SWP filter designs:
(please click on graphs to see larger version)

Contact our design team to create a coating for your exact spectral requirements!