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Description of the centering target
Centering mark
Boxing center of the shape (blue cross)
Centering mark
Centering the lens
Press to select the type of executive lens.
Enter the half PD (for near vision or far vision) and the frame height.
Lower the tube.
Insert the posiblock and its pad in the centering device.
Raise the tube back into centering position.
Position the lens on the tube, with the convex side on the tube.
Move the lens slowly until it is perfectly centered:
Line up the transition segment between near vision and far vision with the horizontal mark in the center
Position the central focimeter dot on the vertical axis of the target
The centering target is displayed:>
The target moves.>
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