Optical Coatings

Precision Thin-Film Solutions

Advanced Optical Filter Coatings

Precision engineered coatings controlling light from UV to far infrared

What Are Optical Coatings?

Optical coatings are specialized thin-film layers applied to optical components to enhance performance by controlling reflection, transmission, and absorption of light across different wavelength ranges. These coatings enable superior performance for applications in astronomy, aerospace, defense, spectroscopy, and laser systems.

At Andover Corporation, we develop advanced coating solutions tailored to ultraviolet (UV), visible, near-infrared (NIR), and far-infrared (FIR) wavelengths, utilizing cutting-edge deposition techniques for superior performance and durability.

From Prototype to Production

Custom Fabrication and High-Volume Manufacturing

Our vertically integrated facility handles both specialized custom projects and large-scale production runs with consistent quality and short lead times.
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Coating Technologies

At Andover Corporation, we utilize multiple advanced deposition technologies to achieve optimal coating performance. Our diverse technical capabilities allow us to select the ideal coating method for each application, ensuring superior quality and precise specifications across all wavelength ranges.

Our production facility employs a variety of cutting-edge deposition techniques to to select the ideal coating method for each application, ensuring  superior quality and precise optical performance.

Magnetron Sputtering

High-performance coating process that creates extremely dense, durable films with exceptional stability. Ideal for producing complex multilayer coatings requiring precise thickness control and environmental durability.

Ion-Assisted E-Beam Deposition

Advanced process combining electron beam evaporation with ion bombardment to create hard, durable coatings with excellent adhesion and optical properties. Perfect for demanding applications requiring tight spectral control.

 

Resistance Evaporation

Traditional thermal evaporation technique offering excellent uniformity and cost-effectiveness. Well-suited for producing high-quality coatings on temperature-sensitive substrates while maintaining precise optical specifications.

Proprietary Solutions

Custom-engineered coating processes developed through decades of experience. Combines multiple technologies to achieve unique optical properties and performance characteristics not possible with standard techniques.

 

Optical Coating Capabilities

Andover Corporation offers a full spectrum of coating solutions, ranging from anti-reflective coatings to high-durability mirror coatings. Our vertically integrated facility allows us to provide:

  • Custom and Standard Coatings – Engineered for specific wavelengths and environmental conditions
  • Broad Spectral Coverage – UV (193nm) through longwave IR (14µm)
  • High-Performance Durability – Designed for extreme environmental exposure
  • Precision Deposition Methods – Ensuring uniformity, repeatability, and optical stability
Bandpass Filters Andover Corporation

Bandpass Filters

Available from 193nm to 14μm with bandwidths from <0.02% to >10%
AntiReflective Binoculars_300px

Anti-Reflective Coatings

Hard oxide AR coatings from 193nm to 14μm
ND Filters Absorptive

Neutral Density Filters

Flat response ND filters for UV to far-infrared
Dichroic Filters Andover Corporation

Dichroic Filters

Custom designs for various applications
Cold Mirrors Andover Corporation

Heat Control Coatings

Hot and cold mirrors for specific applications

Contact Our Team

Ready to discuss your optical needs? Whether you're looking for a quote or have technical questions, our expert team is here to help guide you to the perfect solution.

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Andover Insights & Innovations

Discovering new possibilities in optical filtering

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LiDAR Optical Filters for Remote Sensing and Mapping

By Rick Shagoury | February 10, 2025

LiDAR and Remote Sensing Precision optical solutions for next-generation remote sensing and mapping applications The Science of LiDAR Engineering precision optics for high-performance sensors LiDAR technology is transforming industries with high-resolution, real-time 3D mapping. From autonomous vehicles to aerospace, environmental monitoring, industrial automation, and agriculture, Andover Corporation provides cutting-edge optical components that enhance performance, accuracy,…

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How Optical Technology Keeps Us Safe in Winter Weather

By Holly Peterson | December 23, 2024

How Optical Technology Keeps Us Safe in Winter Weather How Optical Technology Keeps Us Safe in Winter Weather Winter brings a unique set of challenges, from unpredictable snowstorms to icy road conditions. Advances in optical technology are helping communities navigate these hazards with greater precision and safety. By powering weather-monitoring and safety systems, optical filters…

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Reliable Alternatives to Germanium for Infrared Optics

By Rick Shagoury | December 4, 2024

Struggling with germanium supply challenges? Discover advanced alternatives like chalcogenide glass, calcium fluoride, and zinc selenide for high-performance infrared optics. Learn how Andover Corporation’s advanced coating and production can help.