Huvitz Excelon XD Operator's Manual page 29

Synchronization (
• The exact meaning of the mix height and the box height is as following:
FPD based OH
Y
• It is so important to measure the optical height of the patient precisely when
edging a progressive lens. Sometimes, too short optical height might cut out the
near vision area.
• In the Boxing Center mode, "Blocking offset" function is helpful to block lens
manually. ("Help – Blocking Offset" in the menu bar)
) .
Excelon XD Operator's Manual
Mix Height
Box Height
29