RB-473-B02M
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(3) How to measure the progressive lens (when ADD Measure is set for N.AT)
1) Detection of the progressive area
First move the lens slowly to the right and left, and back
and forth to find the progressive area. When the progressive
area is detected, the screen (2) appears.
When the progressive area can not be detected because
the ADD value is small, press Memory/Add switch. You
can call up the screen (2).
2) Far point measurement
When you move the lens toward the instrument according to
, the shape of the alignment cursor changes. Move
the lens slowly
to the far point.
When the progressive area is off the lens stand, the arrow
changes to and the cursor changes to
or . In such a case, move the lens to the right
and left until the arrow and cursor change back to
and respectively. Then, move the lens toward the
instrument.
Once the far point is detected, The alignment cursor
changes to a symmetrical cross , as shown in the
screen (3). When the Memory/Add switch is pressed, the
cursor becomes green . Then, the measurement value
of the far point is stored in memory.
3) Near point measurement
Move the lens slowly
toward you according to the arrow
as shown in the screen (4) so that the alignment
cursor moves toward the near point.
When the progressive area is off the lens stand, the arrow
changes to and the cursor changes to
or . In such a case, move the lens to the right
and left until the arrow and cursor change back to
and respectively. Then, move the lens toward you.
When the near point approaches, the alignment cursor
changes from blue to red. Carry out alignment carefully.
When the near point is attained, a bleep sounds and the
cursor becomes green. At the same time, the Add value is
automatically stored in memory.
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When selecting “F/N.AT” of “ADD Measure” on
the set up screen, a measurement value of a
far point is saved automatically too.
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