Sensor Off-Set Technology
By setting each sensor on the different focal point, you can obtain images of the same object with different depth. For examples: Detecting 3D images (Soldering check), Inspection equipment which needs images of different depth or inspection of scratches on the glass.
Example of an object with different depth:
Focus on label Focus on measuring tape
Above pictures show the difference in depth; The left image is focussed at the label in the back and the right image is focussed on the measuring tape in the front.