The World Leader in Non-Destructive Optical Stress Inspection & Measurement
Strainoptics is the world’s foremost manufacturer of polarimeters and polariscopes, non-destructive stress measurement instruments for the glass and plastics industries.
Our product line encompasses a complete range of instruments, from simple strain viewers and roller wave gauges to specialized, software-based, on-line measurement systems.
As of July 1, 2026, the AUTO-GASP 2 will no longer be supported with calibration, repairs, or part replacement. The options after this date will be conversion or replacement with our Laser GASP or LCD GASP.
LCD-GASP
Attached 3.5″ LCD monitor for easy viewing by multiple users.
Easily used on vertical glass surfaces.
See results clearly with the LCD-GASP.
Industries
Not sure what you need? Click here for Recommended Instruments by Industry
Strainoptics serves the entire glass supply chain – from float glass manufacturers to tempering plants to architects to testing labs. Strainoptics also serves manufacturers of transparent plastics to improve yields. Click here to see all of the industries that benefit from our inspection instruments and services.
Instruments
Know what you need? Click here for Complete Instrument List
Strainoptics manufactures a variety of polarimeters, polariscopes (strain viewers), roller wave gauges, and other stress measurement instruments.
New! PS-100-E671
A new orientation of our PS-100 Polarimeter System for measurement in accordance with ASTM E671
Strainoptics now has available a new PS-100-E671 Polarimeter System oriented specifically for customers wishing to measure glass laboratory equipment in accordance with ASTM E671. Click the above link to learn more.
FREE FEASIBILITY REPORTS
SEND US YOUR SAMPLES! If you are unsure which instrument is right for you or if Strainoptics can help you at all, send us samples! We will examine them and provide a feasibility report with our recommendations at no charge. E-mail us at stress@strainoptics.com or give us a call at (215) 661-0100 to learn more.



