Specifications:
Sphere powers range: +16.75D,with minimum reading 0.25D or 0.12D
(when +0.12D auxiliary lens or optical ±0.12Dlens is in use)
+26.75D to -29.00D(when optical ±10.00Dlens is in use)
Cylinder powers range:0 to -6.00D, with minimun reading 0.25D or 0.12D
(when auxiliary lens is in use)
0 to -8.00D (when -2.00D auxiliary is use)
Astigmatic axis scale: 0 to 180°in 5°steps
Cross cylinder : ±0.25D, reversal type(synchronized with astigmatic axis)
±0.50D optical
Rotary prism : 0 to 20△ Din 1△ step
Auxilisry :
Right eye | Left eye |
O (0pen aperture)
OC (Occluder)
±0.50(Fixed cross cylinder) |
6△U (6 prism dioter base Up)0 | 10△I (10 prism diopter base In) |
PH (Pinhole)
+0.12 (+0.12D sphere lens) |
RL(Red filter)
RMH (Red maddox rod, horizontal)
RMV(Red maddox rod, vertical) | GL(Green filter)
WMH(White maddox rod,horizontal)
WMV(White maddox rod,vertical) |
P 45°(Polarizing filter, axis 45°)
P 135°(Polarizing filter, axis135°)
R(Retinoscopic lens.+2.00D,for 50cm) |
Interpupillary adjustment: 48mm to 80mm in 1mm steo (right and left synchronized)
Forehead rest adjustment: 16mm backward and forward
Convergence :The optical axces of the lenses are aligned at a distance of 400mm from the vertexes of the corneas
(2mm each for right and left inward)
Corneal distance device : 2mm forward and 5mm backward from standard plane; with scale
Effective field of view :19mm