Description
Features:
Unique butterfly design.
All-sided visual functions checking, accurate and comfortable measurement.
Exquisite manuifacturing technique, comfortable operation feel.
High grade coating of all optical lenses.
Specification
Sphere power: Range -19.00m-1~
+16.75m-1
Step 0.25m-1
When applied with auxiliary
lens +0.12m-1,
Step 0.12m-1
Cylinder power:
Range 0～－6.00m-1
When applied with auxiliary
cylinder lens －2.00m-1
0～－8.00m-1
Step：0.25m-1
When applied with auxiliary cylinder lens +0.12m-1
Step：0.12m-1
Cylinder axis: Range 0～180° , Step 5°
Cross cylinder: ±0.25m-1
Rotary prism: Range 0～20△ ,Step 1△
PD adjustment: 50～75mm , Step 1mm
Convergence: adjustment ∞，380mm（When PD 64mm）
Vertex distance: 13.75mm. From corneal point to standard lens surface
