Architectural Glass Quality: Roller Wave, Bow and Anisotropy

Roller wave, overall bow, and anisotropy are three different quality characteristics in heat-treated architectural glass. Roller wave is periodic surface distortion, bow is curvature across the whole lite, and anisotropy is a stress-related optical pattern. A useful specification therefore defines how each relevant characteristic will be measured and accepted instead of asking only for “flat” […]

