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Flatness in Precision Optics: Aspect Ratio and the “Potato Chip” Effect

Posted by Steve Rowe on

Flatness in Precision Optics: Aspect Ratio and the “Potato Chip” Effect

This article highlights the importance of flatness in precision optics, beyond just surface quality. Learn how aspect ratio—the relationship between an optic’s size and thickness—directly impacts stability, with high ratios making flatness harder to maintain. It also describes the “potato chip effect,” a common warping deformation in thin optics that can degrade system performance at even nanometer scales.

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WNY Optics Golf Tournament 2025

Posted by Steve Rowe on

WNY Optics Golf Tournament 2025

Esco is always proud to sponsor the WNY optics golf tournament. This year on Esco watering holes players were met with professional comedians on the tee box. Each swing, slice, and sandy stumble was met with commentary so sharp it could cut optical glass. 

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Ultra Low Expansion Materials for Precision Optics

Posted by Steve Rowe on

Ultra Low Expansion Materials for Precision Optics

In this post, we break down why these ultra low expansion materials are essential to aerospace and optics, what makes them so stable, and how they’re fabricated to meet the most demanding technical standards. Whether you're designing advanced mirrors, lenses, or filters, understanding ULE materials is key to building systems that stay precisely aligned—no matter the temperature.

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Common Misconceptions with Scratch Dig, Flatness and Homogeneity

Posted by Steve Rowe on

Common Misconceptions with Scratch Dig, Flatness and Homogeneity

A practical overview of common questions in optics manufacturing, emphasizing the gap between what customers often specify and what they actually need.  Highlighting how scratch/dig, flatness and homogeneity specifications can significantly increase cost and complexity without necessarily improving performance. 

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Precision optics capabilities for UV/VIS/IR

Posted by Steve Rowe on

Precision optics capabilities for UV/VIS/IR

By choosing Esco, you gain access to a trusted partner with expertise in precision optics, advanced manufacturing capabilities, and a commitment to delivering high-quality optical solutions tailored to your needs. 

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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.