Optical coatings are thin-film layers applied to optical components to modify how light reflects, transmits, or absorbs at the surface. These coatings are foundational in many optical systems. For example, bandpass filters use precisely engineered coatings to transmit a specific wavelength range while blocking others—ideal for spectroscopy and fluorescence detection. Likewise, neutral density (ND) filters rely on coatings to reduce light intensity evenly across the spectrum, commonly used in imaging and laser attenuation.

Andover provides a broad range of optical coatings, including anti-reflective (AR), high-reflective (HR), dielectric, and infrared coatings. Each is developed to meet specific spectral and durability requirements across UV, visible, and IR ranges.

Yes, we specialize in custom coating solutions tailored to your application. Whether it’s a unique substrate, wavelength requirement, or environmental condition, our in-house engineering and vertically integrated manufacturing ensure we can deliver on even the most complex specifications.

Andover Corporation provides a full range of optical coating capabilities from concept to production. We specialize in bandpass filters, neutral density (ND) filters, and advanced optical coatings across the UV, visible, and infrared spectrum. Our vertically integrated facility houses custom polishing, metrology, coating, and testing labs—all under one roof. This approach enables tight quality control, fast turnaround, and high-performance custom solutions for a range of industries, including biomedical, defense, and environmental monitoring.

You can request a quote from Andover Corporation by visiting our Request a Quote page. Please include as much detail as possible about your application, specifications, and quantity requirements. Our team will respond promptly to assist you with pricing, lead time, and any technical guidance you may need.