The lens is centered and ready to be blocked.
To block the lens, refer to the section Centering a lens > Blocking a lens (F p.62).
4. CENTERING BIFOCAL/TRIFOCAL LENSES
Prerequisite: before carrying out lens centering, a shape must be displayed on the centering screen.
If necessary, we recommend that you first:
• Modifying or retouching the traced shape (F p.72)
• Preparing the drilling points to be created (option) (F p.82)
• Place the stickers recommended by the manufacturer on hydrophobic lenses (F p.62)
Concerning the use of the stickers, be careful to change the centering tube with a larger diameter one
to optimise the effectiveness of the sticker.
This section describes the centering procedure for a bifocal or trifocal lens with a straight, curved or round
segment.
Description of the centering target
1. Centering cross (orange cross) and the boxing center of the shape (blue cross)
2. Near vision mark
3. Centering marks
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