Article | June 30, 2022

Large Polished Optics With High Precision Surface Quality Up To 30" Diameter

PG&O - polished optics

Precision Glass & Optics,  a global leader in optical manufacturing, precision thin-film coatings, and complete optical solutions, offers precision optics on large polished substrates up to 30” in diameter.

Customer specifications that can be applied to the large format glass include polishing up to 30”, flatness/transmitted wavefront equal to Lambda/30 over any 6” diameter, with parallelism at 1 arc second, angles to 1 second, and surface roughness at 2 angstroms. The company’s scratch-dig specifications for prisms and other large optics are at 20/10, also known as “high precision” quality. With eleven continuous planetary polishers (CPs), including a state-of-the-art 96” CP, PG&O manufactures finished plano optical components with exceptional flatness and uniformity. 

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PG&O® Precision Glass & Optics