Planarity and thickness of display and flat glass

For the production of display glass, glass sheets with consistent thickness are required. The production process is regulated based on the measured results. Confocal chromatic sensors from Micro-Epsilon are used to detect the thickness from one side. Due to their high measuring rate, the sensors are also applied in high speed processes. When the sensors operate in a traversing manner or in several tracks, the planarity of complete sheets can be documented.