17
2.7. The calibration of the cylindrical axis
With the rectangular cylindrical lens, we can calibrate the cylindrical axis of our machine. The procedures are as followings:
A. Place the rectangular cylindrical lens on the lens cap.
B. Locate it to the center while cling it to the lens table like the following picture.
C. At the second display, press the ‘UV’ button for a while.
D. After that, the calibrated cylindrical axis must be 180 deg.