Multi Band Filters

Multi-band dielectric thin film filters
High-transmission quadband filters engineered for multi-spectral systems, delivering strong out-of-band blocking with ultra-stable hard dielectric coatings.
Two circular multi-band optical filters side by side — one large filter with a deep magenta and pink interference coating, and one smaller uncoated clear substrate, showing a mounted and unmounted configuration.

Key Features

Up to OD6+ blocking
Fully custom designs
Made to order
Hard dielectric thin film coatings
Durable Quadrode™ plasma PVD technology
Mounted or unmounted
Up to 95% average transmission
60-40 scratch-dig
Spectral transmission chart for a quadband multi-band filter, showing four discrete high-transmission passbands each reaching approximately 90 to 97% transmission, centered near 480, 530, 595, and 650 nm, with near-zero blocking between each band across a 400 to 700 nm range.

Technical Specifications

PARAMETER
SPECIFICATION
Center Wavelength (CWL)
300–1800 nm standard
Blocking
Up to OD6+
Transmission
Up to 95% average
Blocking Type
Multi-band notch
Coating Type
Hard dielectric coatings utilizing Quadrode™ plasma PVD technology
Substrate Materials
Borofloat, Fused Silica, BK7, Custom
Surface Quality
60-40 scratch-dig
Clear Aperture
>85% of diameter on mounted parts
Configuration
Mounted or unmounted
Custom CWL / Sizing
Available on request
Environmental
Please contact for full environmental specifications

Request a Quote

Contact our team for pricing, custom specifications, and lead times.