New polishing equipment enables exceptional surface finish of optical substrates.

Precision Glass & Optics (PG&O), a global leader in optical manufacturing and thin film coatings based on single-sided polishing for nearly 40 years, announces new double-sided polishing (DSP) capabilities. The cutting-edge technology of the newly installed PR Hoffman 5400 double-sided polishing machine allows the company to polish parts in days, rather than weeks, providing customers with the highest quality products in the shortest possible time to meet the fast-paced demands of today’s market with unprecedented efficiency. 

The PR Hoffman 5400 DSP ensures sub-second parallelism and exceptional fractional transmitted wavefront error, for production of high-volume optics with unrivaled consistency, precision, exceptional dimensional accuracy and surface finishes on substrates such as Fused Silica, BK-7, and other materials. The machine balances internal stresses within materials, minimizing the risks of warping or deformation for optimal consistency and repeatability on substrates up to 250 mm diameter.