10 Apr 2012 Constructed of hard, durable first-surface coatings on optical-quality IR-transmitting substrates, our IR filters can withstand normal cleaning and handling associated with any high-quality optical component. Andover can provide IR Bandpass, IR Neutral Density, and IR Long Wave Pass filters from stock. We can produce custom sizes and shapes, as well as custom optical characteristics. We can coat a variety of substrate materials, including Germanium, Sapphire, Silicon, Zinc Sulfide, and Zinc Selenide.
Andover Corporation was established in 1976 with the purpose of designing and manufacturing high-quality optical filters and coatings. Over the years, the company has grown significantly but the focus has remained on quality. Our current facility spans 44,000 square feet on 17 acres of land in Salem, NH, USA. We can offer polishing quality of 1/4 wave surface flatness and 1/10 transmitted wavefront. Along with our standard products we offer an array of custom coating designs. We have complete in-house capabilities, performing design, engineering, coating, polishing and fabrication all in one location!
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