Since the 1970’s Delta Optical Thin Film has worked closely with our customers to improve their competitiveness by designing and manufacturing optical filter solutions fitted exactly to the customers specifications and price expectation. We offer both Homogeneous Bandpass, Edge and Blocking Filters, Dichroic Beam splitters as well as Linear Variable Filters. With our unique and advanced design software and our proprietary deposition control software, we ensure a fast and efficient design process and a rapid prototype manufacturing process. We meet our customers on specifications, timeline and their budget.