Spectral Systems LLC

Spectral Systems is the leader in precise infrared optical components, coatings, systems integration and services from original concept through final production. Founded over thirty years ago by Frank Wesley, the company got its start from making specialized optics for infrared applications. In its infancy, Spectral Systems focused primarily on providing optical polishing services to customers involved in infrared spectroscopy.

Today we are an employee owned company with a renewed commitment to our customer’s success. Why are customers first? We believe the only true worth of a company is what it delivers to its customers, not the size of its profits or its facilities. Our philosophy is “We succeed when our customers succeed”. Whether supplying infrared transmission windows, infrared lenses, mirrors, Attenuated Total Reflectance (ATR) crystals, FT-IR beamsplitters, anti-reflection coatings or infrared microscopy optical elements, our goal is for you to be delighted with the quality and service provided.

The Spectral Systems difference starts with its large staff of dedicated employees. Over half of our team has been with us for over 10 years, with over a third more than 15 years. This experience ensures your optics are made to specification every time. Even better, this experience is made fully accessible for our customers. Our infrared optical systems expertise is only a phone call or e-mail away. The Spectral Systems difference also includes our facility located in Hopewell Junction, NY, which is equipped with state of the art polishing, coating and inspection equipment to ensure your optics are fabricated consistently and efficiently.

We have the most comprehensive capabilities to provide optical solutions for the entire infrared range, from the vacuum UV to the Far-IR, no one else can cover the infrared spectrum better than Spectral Systems. We routinely work with over 16 infrared materials and have a broad range of proprietary coating solutions to meet all your needs. Before shipping your orders, we test and evaluate using the most advanced dimensional measurement equipment ensuring that you receive consistently high quality products.

We hope you find our website to be a helpful resource. If what you need is not found here, please contact us as we specialize in custom infrared optics to your specifications.

Optical Component Design and Manufacture

Spectral Systems is a world leader in the design and manufacture of infrared optical components. Our optics are used to transmit, reflect and or focus radiation from the vacuum UV to the far infrared spectral regions. Our engineering team has over 200 years of experience combined in the area of design and fabrication of infrared optics.

We understand and appreciate the material selection, purity, quality, precision, finish and coatings necessary to produce the highest performance infrared optical elements for your application. Please contact us to discuss your application requirements. No other company covers the entire infrared spectrum like Spectral Systems.