Display glass thickness

A special measuring system has been developed for the quality control of display glass. The glass pane is placed on a measuring table by a robot. A measuring arm with several confocal sensors traverses the glass pane there. If any thickness discrepancies are found, the pane is marked as NOK and rejected. The scanCONTROL laser scanner simultaneously circumnavigates the edges and checks these for defects and dimensions. After the check has been completed successfully, the pane is lifted back into the production process and the next measurement is started.

Related sensors and products

Confocal sensors for displacement and position Laser sensors for displacement and position

More application examples in Precision mechanics, optics

Display glass defects Automatic winding of glass fibre cables Measurement of contact lenses Thickness measurement of dies Oscillation Distance measurement at 4 degrees Kelvin Layer thickness measurement (non contacting) Defects in ovality Vibration