|specifications︰||This device is applicable to ophthalmology department of hospitals and spectacle stores for precision measurement of visual functions such as myopia, hyperopia, astigmatism, eyesight balance, heterophoria, stereoscopic vision and eyesight amalgamation.
1. Unique design of butterfly-shape appearance.
2. Capable of checking up all-sided visual functions, accurate and comfortable in measurement.
3. Exquisite manufucturing technique, with comfortable feel.
4. High grade plated-film used in all optic lenses.
Sphere Power: Range:+16.75 to -19.00 diopters;
When applied with auxiliary lens +0.12D
Cylinder Power: Range: 0.00 to -6.00D
When applied with auxiliary cylinder lens -2.00D: 0 to -8.00D
When applied with auxiliary cylinder lens -2.00D: 0 to +0.12D
Cylinder axis: 0 to 180, 5° step;
Cross Cylinder: ±25D;
Rotary Prisms: 0△ to 20△, 1△ step;
P.D. adjustment: 50-75mm, 1mm as a step;
Convergence adjustment: ∞,380mm;
Forehead rest adjustment: 16mm;
(From corneal point to standard lens surface)
Dimensions: 335×320×98 (mm);
Weight: Approx 5kg.