Orihara is a manufacturer of Optical Measuring Instruments
Surface Stress Meters
FSM products measure compression stress of glass surface and depth of layer quantitatively by non-destructive with computer analysis.

FSM-6000X – Glass Surface Stress Meter
The FSM-6000 X series is developed for measuring the surface stress of glass using a PC. Chemical and thermal tempering is increasing the areas of glass application in most of industries. The optical waveguide effect in the surface layer of tempered glass is a useful tool for measuring surface stress for quality and process control purpose.
Features
o Non-destructive measurement
o Output measurement data
o Measure the double ion exchange glass
o Display of cross section stress distribution

Type | UV | VIS | IR |
Light Source | LED 365±10 nm | LED 596±10 nm | LED 790±10 nm |
Meas. Range CS | 0-1000 MPa | 0-1000 MPa | 0-1000 MPa |
Meas. Range DOL | 5-50 μm | 10-100 μm | 10-200 μm |
Object | Chemically tempered glass, Physically tempered glass |
Object Size | 10×10 mm or more |
FSM-7000H – Glass Surface Stress Meter
The FSM-7000H is developed for measuring the surface stress of glass using a PC. Tempering is increasing in the areas of glass application in most industries. The optical waveguide effect in the surface layer of tempered glass is a useful tool for measuring surface stress for quality and process control purposes.
Hand held model!

Specifications | FSM 7000-H |
Range | Compressive stress: 0-1000Mpa. Depth of layer:10-100um |
Accuracy | Stress±20Mpa. Depth: 5um |
Sample | Chemical tempered glass (Single IOX & Double IOX) Thermal tempered glass |
Sample size | flat samples over 100 × 100mm |
SLP-1000/2000: Scattered Light Photoelastic Stress Meter
Measures stress distribution of chemically strengthened glass which is ion-exchanged between Lithium and Sodium (Li+ → Na+)

Measurement accuracy | Stress ±10Mpa Depth ±10um,Standard glass(50um or deeper from the top surface) |
Measurable sample size | radius of curvature:Flat~1000R, dimensions: over 10x10mm |
SRP-1000: Scattered and Refractive Polarimeter
Measures stress distribution of 2 step IOX glass(Li+⇔Na+ and K+⇔Na+) using both optical waveguide effect and scattered light at the same time

Film Array Standard
Standard of retardance for various strain viewer. Available for the standard of calibration both Senarmont Method and Babinet Compensator.
- Convenient to quantify retardation in a sample
- Available to watch color gradation by retardation on Sensitive tint color method
- Including with the certification of test.

For More information
Orihara Company Website:
https://www.orihara-ss.co.jp/index_E.html

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Phone: 916-897-2441
Email: [email protected]