Enhance Material Inspection Accuracy with Advanced Polariscope Testing Equipment What is a Polariscope? A polariscope is an optical device used to detect internal stress patterns in transparent materials like glass, plastic, and acrylic. It works using polarized light to reveal defects that are otherwise invisible to the naked eye. Why Use a Polariscope? Polariscope testing helps manufacturers identify stress points that can weaken the product. It's widely used in the packaging, automotive, and glass industries to ensure strength and safety. Industrial Applications Whether checking PET bottle preforms or optical lenses, a polariscope ensures consistent quality and helps avoid breakage under pressure. Choose Quality with Presto Presto offers precision-engineered polariscope models with ergonomic design, clear visibility, and reliable performance—ideal for quality control labs and industrial setups. Want stress-free quality assurance? Choose a Polariscope for smarter testing.