Meller Optics specializes in grinding and polishing hard, durable materials such as Sapphire and Spinel and has developed high-speed, low-cost finishing processes for a variety of Laser Glasses, Fused Silica, Zinc Selenide, Germanium, Silicon, Fluorides, and Ceramic materials. Configurations include windows, lenses, domes, substrates, prisms, balls, rods, truncated hyper-hemispheres and waveplates.


Meller optical sapphire domes are fabricated in sizes up to 250mm diameter with 180 degree radius and dimensional tolerances to +/-10 microns.


Optical grade sapphire lenses are manufactured from optical grade grown sapphire. Monocrystalline sapphire is slightly birefringent. The lenses are available in positive and negative configurations. 

Meller Optics has a rich history of precision optics fabrication and “Over 100 Years of Quality.”

Our capabilities include 5 axis Ultra Sonic CNC machining, surface grinding, double and single side polishing, X-ray crystal analysis, interferometric measurement and surface roughness analysis.

As experts of sapphire fabrication, Meller Optics is at the forefront in the manufacturing of high tolerance laser, military, industrial and medical optics, utilizing a full range of UV, visible and IR materials. Meller Optics is committed to delivering products as specified, and on time.

Working with sizes from ¼ inch to 16 inches, we are able to fabricate to very stringent specifications and tight tolerances. We provide configurations which include windows, domes, truncated hyper-hemispheres, lenses, balls, rods, waveplates and substrates. Our present business is a mix of Industrial, military, and medical precision optics and our clientele includes most of our country’s leading industrial, defense, and medical instrument manufacturers.


Meller Optics can be reached by phone during office hours Monday – Friday 9am to 5pm EST


Meller Optics has been located in Providence RI since 1921 and after 3 generations, it is truly a family owned business.

Meller Optics is committed to its customer’s success by delivering products and services of the highest quality through training, continuous improvement, total quality management and commitment to the Six Sigma Philosophy.

Measure, analyze, improve and control. 

Meller is also a distributor of optical polishing supplies including gugolz pitch, alumina powders, colloidal silica and alumina slurries.


Various Configurations of sapphire prisms can be custom fabricated to customer requirements and specifications.


A wide range of optics that meet strict OEM specifications and are ideally suited for research and development applications. Available from stock for same day shipping, they include hard-to-find optics in various shapes and sizes.


Calcined from High Purity feed material, Microlux Alumina polishing compounds are produced to exacting specifications to assure you, our customer, of the finest Alumina available today!

Call us today at 800.821.0180 or email us at

We’re available by phone Mon-Fri 9am – 5pm EST

Shop Now

ISO 9001:2015 Registered - ITAR Registered - Made in the USA