Strainoptics, Inc.

108 West Montgomery Avenue, 19454 North Wales, PA
Telephone +1 215 6610100
Fax +1 215 6997028

This company is co-exhibitor of
Softeco Oy


Hall map

glasstec 2016 hall map (Hall 12): stand C35

Fairground map

glasstec 2016 fairground map: Hall 12


Tim Wilson

Wartung, Instandhaltung

108 West Montgomery Avenue
19454 North Wales, PA, USA

+1 215 6610100

+1 215 6997028


Joel Feingold

Fertigung, Produktion

108 West Montgomery Avenue
19454 North Wales, PA, USA

+1 215 6610100


Tom Fritchman

Lager/Material, Logistik, Transport

108 West Montgomery Avenue
19454 North Wales, PA, USA

+1 215 6610100


Our range of products

Product categories

  • 05  Measurement, testing, control technology and software
  • 05.01  Measurement and control technology, sensoring
  • 05.01.01  Measurement and control
  •  Measurement and control of glass tension

Our products

Product category: Measurement and control of glass tension

Float Glass Stress Scanners

The SCA-1500 on-line float glass stress scanner automatically measures and reports residual stress across the glass ribbon at the cold end of the float line. It features user-friendly PC-based operation, and requires no special operator skills or training. Field-proven technology and reliability have made the SCA-1500 the choice of the world's leading primary glass manufacturers.

Measures an unlimited range of measured retardation with resolution of 1 nm (15 psi in 1/8-inch glass)
Capable of measuring retardation in materials as hot as 1000˚ C
Speed of response (100 milliseconds) exceeds all other glass stress measuring instruments
Displays graphs and tables of total stress, thermally induced (temporary) stress, permanent  stress, or all three 
Provides data formats for off-line storage and analysis

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Product category: Measurement and control of glass tension

GES-100 Edge-Stress Meter

The GES-100 Edge-Stress Meters are light, portable, battery-operated instruments that are specially designed to measure edge stress in annealed, heat-strengthened, and tempered glass. These instruments are used for non-destructive, precision measurement in accordance with ASTM test method C-1279. GES-100 Edge Stress Meters can be used on both flat and curved glass.

Models include:

GES-100 Edge-Stress Meter
Includes a double-wedge compensator, generally used for tempered glass applications.

GES-100-MWA Edge-Stress Meter
General-purpose instrument includes a single-wedge compensator.

GES-100-MWA-HS High Sensitivity Edge-Stress Meter Special model for annealed glass measurement or other low-stress applications where greater measurement sensitivity is desired.

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Product category: Measurement and control of glass tension

GASP® Surface Stress Polarimeter

Strainoptics' GASP® Polarimeter is a portable instrument for measuring surface stress in heat-strengthened and tempered glass. It can also be used to confirm stress-relief in annealed glass and to validate furnace settings for manufacturers of safety glass. The standard GASP model is for flat or slightly curved surfaces, while the GASP-CS version is designed to accommodate a curvature greater than 8 inches (200 mm). Both models may be ordered with either a laser or fiberoptic light source. The laser model features a rechargeable battery pack and offers the broadest range of measurement, up to 25,000 psi (180 MPa). 

Strainoptics’ GASP® polarimeters are: 

Easy to operate
Compliant with all industry specifications, including ASTM C1048, C1279 and the new compulsory
EN-12150 and EN-1863 standards and CE marking requirements for testing mechanical strength in architectural glass 
 For in-plant or field use
 Available for flat or curved surfaces
 Ideal for solar glass applications

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Product category: Measurement and control of glass tension

PS-100 Polarimeter Systems

Strainoptics’ PS-100 Polarimeter System is a modular system, available in a variety of sizes and configurations. The systems described below are our most popular packages. Contact us if you are uncertain which package is the best choice for your application.

PS-100-SF Standard Field Polarimeter - General-purpose desktop system, with a 200 x 200 mm viewing area. Includes a circular/plane polarized illuminator and analyzer. Precision measurement of retardation, birefringence, orientation, stress or strain can be achieved in accordance with widely accepted test methods.

PS-100-MW Polarimeter - Supplied with a 75mm high-intensity light source, a microscope, and a measuring wedge assembly. Often used to evaluate surface compression and mid-plane tension in a glass slice. Video zoom systems for high-magnification, depth of compression layer, and defect detection are also available (PS-100-DWC-HS).

PS-100-VIDEO Polarimeters - Feature analog or digital CCD color video cameras with macrovideo zoom lenses, high-intensity light sources, measuring wedge assemblies, and 19" color LCD monitor or PC outputs.

PS-100-1011 Large Field Polarimeter - Tripod-mounted analyzer for horizontal viewing of larger samples; features a 250 x 280 mm viewing area. Ideal for automotive glass and container glass applications.

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Product category: Measurement and control of glass tension

PSV-100 Strain Viewer (Polariscope)

The PSV-100 Portable Strain Viewer is a rugged, low-cost, battery-operated polariscope. The viewing area is 75 x 75mm (3 x 3 inches). The product design offers an adjustable work space, up to 180 mm (7 inches). Optional accessories such as Strainoptics’ Measuring Wedges permit quantitative evaluation. Other accessories include Tint Plates and Battery Rechargers.

The PSV-100 Portable Strain Viewer is commonly used for the following applications:


Evaluation of temper uniformity in glass
Verification of annealing


Observation of strains in molded products
Detection of weld and flow patterns
Examination of flow patterns and gate efficiency
Identification of irregularities due to mold deficiencies or temperature gradients

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About us

Company details

..manufacturer of non-contact, non-destructive stress measurement instrumentation to the glass and plastics industries.

In addition to the internationally recognized GASP® surface polarimeter, our product line encompasses a complete range of instruments, from simple strain viewers and polarimeter systems to specialized on-line and off-line equipment for measuring stress and other optical properties in a wide range of materials, including:

Float glass
Architectural glass
Automotive glass
Electronic glass
Container glassOptical/scientific glass
Plastic film
Molded products
Medical packaging
Medical devices

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Company data

Sales volume

1-2,5 Mio US $

Export content

max. 50%

Number of employees




Area of business

Measurement, testing, control technology and software

Target groups
  • Mechanical Engineering
  • Manufacturing, Processing and Finishing
  • Crafts
  • Architecture / Construction
  • Windows and Facades
  • Solar Glass/Technical Glass