Esco Optics, Inc.

Blog

Product reviews, how-to guides, and industry news from Esco Optics, Inc..

Bi-Convex N-BK7 vs Fused Silica Lenses

Bi-Convex N-BK7 vs Fused Silica Lenses

Compare bi-convex lenses in N-BK7 optical glass and UV grade fused silica. Learn which substrate suits your imaging application and budget.

Category: Comparisons
Selecting UV Grade Fused Silica Flat Windows

Selecting UV Grade Fused Silica Flat Windows

Learn how to choose UV grade fused silica flat windows: understand flatness, parallelism, and diameter options to match your application's precision n...

Category: Buying Guides
Why Does My Fused Silica Lens Show Fringes?

Why Does My Fused Silica Lens Show Fringes?

Interference fringes on a fused silica lens are usually harmless, but understanding the cause—and distinguishing them from damage—saves you from unnec...

Category: Product Reviews