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Birefringence | Fiber Birefringence

The difference between the refractive index indices of the fiber in a direction at parallel to the fiber axis and in a direction at right angles to the fiber axis is called birefringence of that fiber. Birefringence is responsible for the phenomenon of double reflection.

Mastering Waterproof Performance: A Deep Dive into Fabric Waterproof Testers and Hydrostatic Pressure Testers