Engineered Optical Bandpass Filters
With decades of expertise in thin film coating, DSI delivers bandpass filters trusted by aerospace, defense, and high-tech industries worldwide. Our offering includes dual bandpass filters for multi-spectral use, narrow bandpass filters for precision wavelength control, and mid-IR bandpass filters for thermal imaging. Each filter is engineered for superior performance and long-term durability. Request a quote today or consult our engineers to discuss your application.
The DSI Difference
DSI has extensive experience designing and manufacturing bandpass coatings for use at wavelengths ranging from the visible through the mid-wave infrared. These include broad bandpass, narrow bandpass and even dual (or multi-wavelength) bandpass designs. DSI bandpass filters are characterized by high in-band transmission, strong out of band blocking and immunity to shifts due to changing humidity.
