31
3. OPERATING PROCEDURE : Preparation for Measurement
♦
Details of target
The target form displayed on the measurement screen can be selected by the Target parameter.
●
Target parameter setting
Setting
Details of target
(Normal)
The target indicates the distance and direction from the nosepiece center.
The direction and movement distance are constant regardless of lens refractive
power.
As the target approaches the center, its shape changes from
(within 0.5
∆
)
(within ø0.8 mm).
(Prism)
The target moves based on prism amount as with the eyepiece-type or projec-
tion-type lensmeter.
Also, the target turns to indicate the axis.
As the target approaches the center, its shape changes from
(within 0.5
∆
)
(within ø0.8 mm).
(Normal)
(Prism)
• This operator’s manual provides explanations with the Target parameter set to
(Normal).
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