29
6.6 Measurement of Progressive Lens
(1) Take a measurement of progressive lens.
Set “Auto Prog．” and “ADD Measure”.
Auto Prog.
Off ：No auto judgment for a progressive lens
On ：Auto judgment for a progressive lens
ADD Measure
F/N.AT ：Auto memory of far and near points
N.AT ：Auto memory of near point
Manual ：Manual memory of far and near points
(2) Switching to progressive lens measurement screen
The icon is changed to
, and the progressive
lens measurement screen is displayed by pressing
(single/ progressive lens selection switch).
In case that Auto Prog is set as “On”, the lens is automatically judged whether the lens
is a progressive lens or not.
Set the lens in the center region of the progressive zone. It starts the auto judgment of
the progressive lens. When the lens is identified as a progressive lens, the screen is
switched to the progressive lens measurement screen. If not, the measurement screen
remains as the single focus lens measurement screen.
When the ADD value is small (less than 1D), the auto detection may not be performed.
Also, if the progressive zone cannot be found at where the lens is set, the auto detection
may not be performed.
In these cases, move the lens back and forth, and right and left slowly.
When the ADD value is small (less than 1D), the framed lens is small, or the lens is dirty
or has some flaws, the far point and near point may not be detected automatically. In
such case, take a measurement manually.
NOTE
To Next Page
Loading...
Need help?
General
