■Quick,easy and accurate refractions
■ Precision engineering for superior performance
■ Extended measurement range
■ Multi-coated lenses
■Synchronized cross cylinders
■ Wide testing range
■Quick,easy and accurate refractions
■ Precision engineering for superior performance
■ Extended measurement range
■ Multi-coated lenses
■Synchronized cross cylinders
■ Wide testing range
1.Sphere power Range:+16.75D to -19.00D,with minimurm reading 0.25D or 0.12D
(when+0.12D auxiliary lens or optional ±0.12D lens in use)
+26.75D to-29.00D
(when optional±10.00D lens is in use)
2.Cylinder power range:0 to-6.00D,with minimum reading 0.25D or 0.12D(when auxiliary lens is in use)
0 to-8.00D
(when-2.00D auxiliary lens is in use)
3.Astigmatic axis scale:0 to 180°in 5°steps
4.Cross cylinder:±0.25D,reversal type(synchronized with astigmatic axis)±0.50D optional
5.Rotary prism:0 to 20△D in 1△D step
6.PD adjustment:48mm to 80mm in 1mm steptright and left synchronized)
7.Forehead rest adjustment:16mm backward and forward
8.Convergence:
The optical axes of the lenses are aligned at a distance of 400mm from the vertexes of the cormeas(2mm each for right and lef inward)Interpupllary distance enabling corvergence=57mm to 80m
9.Corneal distance device:2mm forward and 5mm backward from standard plane;with scale
10.Effective field of view:19mm