Move the lens slowly until the top of the segment is in the center of the target.
D-SEGMENT ROUND SEGMENT
The lens is centered and ready to be blocked.
To carry out lens blocking, refer to the section Lens Centrering > Blocking a lens (F p.61).
5. CENTERING AN EXECUTIVE LENS
Prerequisite: before carrying out lens centering, a shape must be displayed on the centering screen.
If necessary, we recommend the following prior operations:
• Modifying or retouching the traced shape (F p.65)
• Preparing the drilling points to be created (option) (F p.73)
• Place the stickers recommended by the manufacturer on hydrophobic lenses.
This section describes the procedure for centering an executive lens
&
.
Prerequisite: the lens must be marked using a focimeter.
The three focimeter dots must be:
• aligned,
• at the same distance from the central dot,
• 0.5 to 1.5 mm in diameter.
Description of the centering target
1. Centering mark
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