ISO 9001 - AS 9100 - ITAR Standard & Custom Optical Filters and Coatings

Custom Polishing & Fabrication of Optical Filters & Coatings



Andover has the capability of polishing a wide variety of materials to very precise specifications. Using double-sided polishers we can achieve transmitted wavefont errors down to 1/10 wave, and parallelism to within a few seconds of arc. Sizes range from a few millimeters to 250mm and larger. Automation assures consistency and repeatability.

Grinding, Polishing & Fabrication

  • Diamond surface grinders

  • Myford cylindrical grinders

  • Strasbaugh single-sided polishers

  • Speedfam double-sided polishers

  • Speedfam double-sided diamond lappers

  • Automated lens centering machines for

    high precision beveling

  • Dicing Saw

  • Haas CNC fabrication centers (3 and 4 axis)

    • Milling
    • Sawing
    • Coring



Whether you require a filter that’s 2mm or 350mm, Andover has fully automated CNC equipment to fabricate exactly what you need, with the quality you expect, and using the optical material of your choice.


Andover’s 3-axis machining centers allow us to fabricate complex tooling quickly and accurately, greatly reducing the lead time for custom components. We have numerous CNC machining centers custom-designed for glass fabrication. Sawing, milling, coring, and beveling can all be performed quickly and accurately.

Please contact one of our technical sales representatives for a quotation on your requirements Contact Us