Iridian’s optical filters are manufactured using energetic sputtering processes to create hard, durable, and environmentally stable dielectric coatings across wavelengths from 300 nm to 10 µm. For long-wave infrared applications, we also offer evaporated filter solutions covering 10 to 15 µm.
The result is exceptional optical performance, including high transmission, excellent out-of-band blocking, and superior wavelength control, enabling maximum signal quality and reduced background interference.
Our custom OEM solutions include:
Multi-Zone Filters (MZF) with spatially varying spectral performance
Photolithographically patterned designs
Assembled “butcher-block” configurations
Multi-Band Filters combining multiple bandpass or notch functions in a single coating
SWIR to LWIR Filters (1.6-10 µm) including AR coatings, beam splitters, edge filters, and bandpass filters
LWIR Filters (10-15 µm) including edge, bandpass, and notch filters
Solid Etalon Filters (SEF)
Linear Variable Filters (LVF/LTF)
Custom Wavelength-Selective Beam Splitters and Prism Assemblies
Coatings on Silicon, Germanium, and Sapphire Substrates
Large-Area Optical Filters with exceptional uniformity up to 150 mm diameter
Precision Performance
Our filters are engineered to meet the most demanding optical specifications, including:
High transmission within the passband
Precise center wavelength control and uniformity
Low insertion loss and passband ripple
Ultra-narrow bandwidths below 1 nm
Steep transition edges
Blocking greater than OD6 (60 dB)
Broad blocking ranges
Custom center wavelengths from UV to LWIR (300 nm to 15 µm)
From Prototype to Production
Whether developing a next-generation sensor, a hyperspectral imaging system, an AI datacom platform, or a space-qualified optical assembly, Iridian works as an extension of your engineering team. Our design expertise, advanced manufacturing infrastructure, and rigorous testing capabilities ensure reliable, scalable solutions that accelerate development and deliver long-term performance in the field.
Partner with Iridian to transform complex optical requirements into high-performance, production-ready solutions.