Procedure

Basic Function of Target Camera

The fiducial pattern recognition camera allows both point-and-click definition of the spot layout in a live video image or automatic target recognition by image processing software.

 

The video shows how the alignment process works. The user needs to write a “spotting plan” in advance for each spot pooint.

1. Initially a precise offset measurement gives the exact distance between the camera axis and the drop trajectory of each dispenser.
2. Now the camera travels to each of the two alignment markers on each target substrate. Two pictures are taken of each target substrate.
3. The software calculates the coordinates for each spot point and completes the spotting run without any further user interaction.