Delta Optical Thin Film A/S is a world-leading manufacturer of optical thin film coatings with more than fifty years of experience. In the 1960s, Delta Optical Thin Film A/S pioneered optical monitoring techniques to control deposition. With its unique and advanced optimisation software to match customers' particular optical specifications, Delta Optical Thin Film A/S ensures a fast and efficient design process. Advanced optical coatings In the early 1990s Delta Optical Thin Film A/S pioneered computer controlled optical monitoring and automatic deposition of advanced optical coatings, helping the world's leading manufacturers of analytical instruments in setting new standards. Already in 2005, Delta Optical Thin Film A/S successfully managed to produce optical filters with the Ultra-Hard-Coated technology. Delta Optical Thin Film A/S has then led the way towards an ever increasing complexity and performance of optical filters. Our product range comprises: Fluorescence Filter Sets Continuously Variable Filters Bandpass Filters: Single or Multiband, Laserline, Broadband Dichroic Beamsplitters Multiedge Dichroic Beamsplitters Polarisation Beamsplitters AOI Tolerant Dichroic Beamsplitters Edge Filters: Long Wave Pass or Short Wave Pass SMART Coatings: Multifunctional Filters Our filters are found in many applications: Hyperspectral Imaging Fluorescence microscopy Spectroscopy Wavelength selectors High-performance monochromators Biomedical laser systems Point of Care (PoC) instruments Image transferring systems Colour separation systems Optical coherence tomography