مكان المنشأ
Beijing, China
اسم العلامة التجارية
Hongdee
Product name
Manual Phoropter for sale Vista testing equipment for eyes
Vertex Distance (VD)
13.75 mm
PD Distance Adjustment (PD)
48 ~ 80 mm (1 mm increments)
Convergence Adjustments
57~ 80 mm
Rotation Prism
0 ~ 20 (1 increments)
Built-In Optical Filters
Red,Green,Polarized,Cross-Cylinder±0.50D
Cross-Cynlinder
±0.25D, reversed-type (synchronized AX) ±0.50D (optional)
Axis (AX)
0° ~ 180° (5° increments)
Cylinder (CYL)
0D ~ -6D (0.25D increments)