Blog

Choosing Color Filter Glass: A Practical Buying Guide

Learn how to select the right color filter glass for your optical application, including key factors like thickness, spectral performance, and size co...

What Is a Witness Sample and Why Use One?

A witness sample is a melt-lot-controlled optical coupon used to verify coating and polishing quality without risking the primary optic. Learn when to...

Optical Flats vs Precision Wedge Windows: Key Differences

Compare optical flats and precision wedge windows: flatness specs, back-reflection control, and which to choose for laser or interferometry applicatio...

Industrial Laser Lens Not Performing? Common Fixes

Troubleshoot common laser lens performance issues like power loss, burn marks, or focus drift. Learn step-by-step fixes and when to replace the lens.

How to Clean and Maintain Commercial Quality Windows

Learn the correct steps to clean and maintain commercial quality windows made of N-BK7 or fused silica without damaging the surface or coating.

How to Choose the Right Precision Wedge Window

Learn what precision wedge windows are, how to read their specifications, and how to select the right one for your application.

Witness Sample Testing: How to Read Reflection and Transmission Data

Witness sample testing explained: learn how to interpret reflection and transmission data, verify optical coatings, and use thin film witness samples ...

Biconvex vs Plano-Convex Lenses: Which Focal Setup Wins?

Compare biconvex and plano-convex lenses on symmetry, aberration control, and focal length selection so you can choose the right shape for finite conj...

How to Store and Handle Microscope Slides and Cover Slips

A practical, ordered routine for microscope slide storage and cover slip handling that prevents contamination, scratches, and breakage in the lab.

Right Angle vs Equilateral Prisms: A Practical Comparison

Right angle prisms bend light 90° or 180° using total internal reflection, while equilateral prisms split white light into a spectrum. Compare how dev...

What Optical Density Really Means for Neutral Density Filters

Learn how optical density maps to transmission, then follow a step-by-step process to calculate OD and choose a metallic or fused silica ND filter wit...

Anti-Reflective Coating Myths: What Actually Affects AR Performance

AR coatings don't boost transmission to impossible levels or fix every optical flaw. Here's what coating myths get wrong and what actually matters for...