MEGATRADE Corporation

Dedicated to Designing what you mean by gVisual Inspectionh

Glass Masks


Glass Masks


Name Glass Mask
Size of specimen as a whole ca. 500~400mm
Unit inspection area ca. 40~30mm in size, with fine lines and spaces
Mode of defects

Breakage, bridge formation, chipping, dropout;

detection sensitivity level being a few micron.

Method for inspection


Simplified System with Line Sensor Camera

(Glass Mask Specification)

Method: One good piece is first registered as reference, with which specimens to be inspected are compared.  Both camera and specimen stage are motor-driven, which brings reduced size of the apparatus.

Tips for smart treatment

  • Expects to reduce tact time by means of using line-, not area-, sensor camera
  • Sets object domains on lines and spaces respectively, for which independent threshold values are assigned