Delta Optical Thin Film A/S is moving into new facilities
Following strong growth Delta Optical Thin Film A/S is moving into its new purpose-built facilities in DTU Science…
Why Delta
Why Delta? Coating technology for reliable volume production We have a long history of supplying Optical Dielectric Filters with high and consistent quality for mass volume OEM applications. Using our proprietary design software, we are…
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Custom designed Optical Thin Film components optimised for your volume applications. We are the optical filter companySince the 1970’s Delta Optical Thin Film has provided specialized, custom designs and the manufacturing of high…
Tunable Bandpass filters with wide deep out-of-band blocking
New Tunable Bandpass Filters with Wide Out-of-Band Blocking for Photonic InstrumentsTunable Bandpass filters with wide deep out-of-band blockingTunable bandpass filters have…
Optimum order sorting filters for spectrometers
Remove higher grating orders effectively in your spectrometerOptimum order sorting filters for spectrometersDiode Detector Array (DDA) spectrometers are widely used because they…
Multi-Bandpass Filters for fluorescence
Simplify your fluorometer with multi-bandpass filtersMulti-Bandpass Filters for fluorescenceIntroductionFluorescence spectroscopy is a powerful technology used extensively in…
Continuously Variable Edge Filters
Endless opportunities with our Continously Variable Long Pass and Short Pass Edge Filters.Continuously Variable Edge FiltersOur Continuously Variable Edge Filters are…
Optical Filters Wiki
Delta Optical Thin Film GlossaryOptical Filters WikiOptical filter technology uses its own terms. Below we explain the most frequently used technical terms: Angular Shift…
Our history
Our HistoryFor more than six decades, we have been meeting customer and market demands for complex custom optical filters…
How does an interference filter work?
Learn the basics of optical dielectric multi-layer filtersHow does an interference filter work?Interference filters are very effective to accomplish almost any type of spectral…