Curved-ray technique to measure the stress profile in tempered glass

G. Wayne Brodland; Allan Dolovich

doi:10.1117/1.1287935

1 September 2000 Curved-ray technique to measure the stress profile in tempered glass

G. Wayne Brodland, Allan Dolovich

Optical Engineering, Vol. 39, Issue 9, (September 2000). https://doi.org/10.1117/1.1287935

We present a new laser method that exploits curved-ray effects and that provides a practical method to investigate the stress profile in tempered glass. A feature of the technique is that the probing laser beam curves sufficiently that it exits on the same side as it enters; it does not reflect off or exit from the opposite side. The governing equations are formulated and studied using analytical methods and computer simulations. For a typical piece of tempered glass, the distance between the entry and exit points is of the order of a few tens of centimeters and is highly sensitive to details of the underlying stress distribution.

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G. Wayne Brodland and Allan Dolovich "Curved-ray technique to measure the stress profile in tempered glass," Optical Engineering 39(9), (1 September 2000). https://doi.org/10.1117/1.1287935

Published: 1 September 2000

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