Process Date: August 2002

   Using a Synrad 10W laser, FH marking head and 125mm lens we were able to create readable 2D codes on the Pyrex test tube shown in the photo.  The 2D Data Matrix^TM code was made using 6W of power at a speed of 4 inches per second.  The mark has a cycle time of 2.8 seconds!

   For marking 2D codes on glass, WinMark Pro’s spot marking style property was set to Yes and a spot mark duration value of 0.1ms was chosen.  Resolution was set to 50 and the 2D barcode bitmap property was set to No so that each cell is comprised of a vector circle.  The overall code size is 0.235” square.


A readable 2D code created on Pyrex using a Synrad 10W laser.