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To center in re-marked micro-engravings mode
Pre-requisite: micro-engravings must be re-marked with a white felt tip pen. The diameter of the dots must be between 0.5 and
1.5 mm.
We advise you to use the white felt tip marker supplied with the tracer-centerer-blocker to mark the lens.
Description of the centering target
Optical center of the lens (orange cross) and boxing center of the shape (blue cross)
Centering marks
Centering the lens
Press to select the type of single vision lens.
Enter the half PD and pupillary 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.
In three focimeter dots mode:move the lens slowly until the three focimeter dots are perfectly aligned on the target.
place the central point in the square ,
place the two external points between the two dotted lines, as close as possible to the central line.
In micro-engraving mode:move the lens slowly until the micro-engravings are perfectly aligned on the target.
The centering target is displayed:>
The target moves.>
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