Blog

What is low expansion glass - Zerodur, CLEARCERAM-Z, and ULE?

Posted by Steve Rowe on Sep 29, 2021

Zerodur, Clearceram-Z and ULE are the most popular choices for low expansion materials. Though they may all have low expansion qualities there are nuisances to each material and provider. Take a few minutes to learn more.

Momentive Technologies 124™

Posted by Steve Rowe on Aug 23, 2021

Learn more about Momentive Technologies' 124 high purity fused quartz. A natural sand quartz that has excellent transmittance for semiconductor, photovoltaic and other applications.

UV-Grade Lenses for Bacteria Cleaning Applications

Posted by Steve Rowe on Jul 13, 2021

UV light is a powerful tool in disinfecting indoor spaces. Learn more about how we can help you with tailored optics for your UV application.

Behind the scenes in optical coatings

Posted by Steve Rowe on Jun 08, 2021

Learn more about the intricacies of coating design from David Yoo of Colorado Thin Films.

Precision flat substrates

Posted by Steve Rowe on May 03, 2021

Precision flat optics in 1/4, 1/10, 1/20 wave flatness available in catalog or custom sizes with materials ranging from fused silica, quartz, optical glasses and low expansion glass.

Quality Optics from a Trusted Supplier

American Owned & Operated

Esco Optics is a leading manufacturer of custom and catalog optics, precision optical components, and ITAR optics in the United States.

Military & Defense Supplier

As the leader for military and defense optics in the United States, Esco Optics adheres to the International Traffic in Arms Regulations.

ITAR Registered & Compliant

ITAR registered and compliant, Esco manufactures ITAR optics for all of its customers with the strictest confidentiality.