Device to determine the shape of pane-shaped objects

A device for determining a contour of a pane-shaped object, comprising:

• plural rows of plural optical sensors;
• a conveyor for moving the pane-shaped object and said optical sensors relative to one another;
• and
• a device for determining a distance of relative movement of the pane-shaped object,
• wherein said rows of optical sensors are oriented parallel to a plane of the pane-shaped object and not parallel to a direction of relative travel of the pane-shaped object, and
• wherein the ones of said sensors that are arranged generally parallel to a direction of travel of the pane-shaped object form a line (10) of sensors (7) for determining the direction of travel of the pane-shaped object.

A device for determining a contour of a planar object, comprising:

• a planar wall tilted relative to vertical and an adjacent generally horizontal base for supporting a side of a planar object having its planar surface parallel to said tilted wall;
• at least one row of optical sensors parallel to said tilted wall and not parallel to said base, each of said sensors for sensing passage of a portion of an edge of the planar object;
• means for moving the planar object relative to said row of optical sensors;
• and
• a movement sensor connected to said means for moving, for determining a distance of movement of the planar object relative to said row of optical sensors, whereby said row of optical sensors and said movement sensor determine a contour of the planar object.