Strainoptics manufactures a complete line of manually operated and automated equipment for measuring surface stress and edge stress in annealed, heat-strengthened, and tempered automotive glass. Please click on the product photo to learn more about that specific instrument.
is the instrument recommended by ASTM and other international standards groups for measuring surface stress in all types of heat-treated glass. Conforms to new European EN-12150 guidelines!
Reflection Strain Viewer
(for observing non-uniform stress distribution and tensile imbalance.)