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Large Field Polariscopes – Strainoptics Large Strain Viewers for Qualitative Inspection of Glass Stress Patterns

Strain Viewers (polariscopes) are suitable for inspection of nearly any size product. In clear and translucent polymers, residual strains become visible when viewed with Strainoptics’ polariscopes. The strains appear as a colorful fringe pattern, which reveals a wealth of information.

A comprehensive instruction manual teaches you how to interpret the color pattern. In production, this simple test can quickly identify defective parts and alert operators to adjust process parameters. The procedure is non-destructive and fast!

Quantitative measurements can also be obtained for many applications with an optional compensator, in accordance with ASTM test methods.

SV-2000 Strain Viewer
Strainoptics’ most popular polariscope has a 16″x20″ viewing area with two rugged extruded aluminum braces that allow the user to view areas of much larger samples. The SV-2000 can be viewed vertically or horizontally and is easy to transport.
SV-3000 Strain Viewer

The SV-3000 polariscope is similar to the SV-2000 but is bigger, with a viewing area of 22 inches (560 mm) square. This polariscope is large and industrial and can handle multiple items at a time.

SV-1000 Strain Viewer

Also available with circular or plane polarization (Specify).
Separate vertically oriented analyzer and polarized illuminator for larger or deeper samples. Horizontal lightpath only.

Viewing area: 250 x 280 mm (10 x 11 inches).

SV-1011 Strain Viewer
Large-field, vertical lightpath. Available with circular or plane polarization (Specify). Adjustable height analyzer for larger or taller samples. Viewing area: 250 x 280 mm (10 x 11 inches).

Unlike simple crossed polarizers, our polariscopes use circular polarizers which assure that stresses are properly observed regardless of specimen position or orientation.

A plane-polarized model is available for glass applications – specify Model SV-2000-P.

Typical applications of Strainoptics’ polariscopes (strain viewers) include:

  • Thermoformed packaging
  • Medical components
  • Automotive components


Model No. Viewing Area (H x W)
RSV-1620 16 in x 20 in (400 x 500 mm)
RSV-1640 16 in x 40 in (400 x 1000 mm)
RSV-1680 16 in x 80 in (400 x 2000 mm)
RSV-2032 20 in x 32 in (500 x 800 mm)
RSV-2064 20 in x 64 in (500 x 1600 mm)