Ranges of diopter measurement
Minimum scale value
Astigmatism axis of cylindric lens
Minimum scale value
Prism diopter standard model
Minimum scale value
*Strengthened model
*Minimum scale value
Prism base angle
Minimum scale value
Regulation of ocular visibility
Size of lens
Overall dimensions of device
Weight standard model
*Strengthend model
Lighting lamp
0 ~ +25D
0.125D at 0 ~ +5D
0.25D at ±5D ~ ±25D
0 ~ 180°
1°
0 ~ 5∆
1∆
0 ~ 20∆
1∆
0 -180°
1°
±5D
ø16mm ~ ø80mm
275mm X 130mm X 455mm
5.6kg
5.7kg
220V / 110V 15W