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White Paper

Analysis of Undiffused and Diffused Light on Stainless Steel


Select the right type of illumination to prevent contamination in stainless steel tanks

In pharmaceutical, biotech, and food processing, stainless steel tanks play an important role in maintaining hygienic and contamination-free environments. However, the method with which your tanks are illuminated significantly impacts what you see—and what you might be missing.

Selecting the wrong type of lighting can create excessive shadowing and reflections, making it difficult to properly inspect surfaces for residue, contamination or defects. The white paper, Analysis of Undiffused and Diffused Light on Stainless Steel, provides critical insights into how lighting choices affect visibility, process monitoring, and contamination prevention.

What You’ll Learn in This White Paper:

  • How Lighting Impacts Visibility in Stainless Steel Tanks – Understand why certain lighting setups enhance or obscure tank surfaces
  • Reflection and the Phong Reflection Model – Learn how light interacts with stainless steel and why reflection matters in process observation
  • Hard vs. Soft Light – Discover how different light types affect glare, diffusion, and the ability to detect contamination
  • Which Type of Light is Best for Illuminating Stainless Steel Tanks – Get expert recommendations to improve inspection accuracy and process monitoring.

Why This White Paper Matters:

  • Enhance Process Safety – Proper illumination ensures you detect contamination risks before they become costly problems
  • Improve Cleaning and Inspection Accuracy – Avoid false readings due to excessive glare or poor lighting conditions
  • Optimize Equipment Performance – Use the right lighting to improve visibility and ensure tank integrity.

Download the White Paper and make informed decisions about lighting in stainless steel tanks to improve process safety and contamination prevention.

LJ Star Incorporated (www.ljstar.com) provides an extensive line of process optimization equipment – sight glasses, lights, sanitary fittings, cameras and level gage instrumentation. Product lines include METAGLAS® Safety Windows, Lumiglas® Explosion Proof Lights and Cameras, the MetaClamp® Sanitary Sight Window, Visual Flow Indicators, Sight Ports, Sanitary Clamps, Magnetic Level Gages and Gage Glass. METAGLAS® is the #1 selling fused sight glass, proven in thousands of installations around the world. Unlike some other sight glasses, it meets stringent DIN 7079 and DIN 7080 quality standards, and it is approved for USP Type I use.

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