Future vision instruments co.,ltd

Parameter:<br />
Sphere power range:+16.75d~-19.00d,with minimum<br />
reading 0.25D or 0.12D(when +0.12D auxiliary lens or optional<br />
±0.12D lens in use)+26.75D~-29.00S(when optional ±10.00D<br />
lens in use)<br />
Cylinder power range:0~-6.00D,with minimum reading<br />
0.25D or 0.12D(when +0.12D auxiliary cylinder lens in use)<br />
0~-8.00D(when -2.00 auxiliary cylinder lens in use)<br />
Cylinder axis:0-180°,5°steps<br />
Cross cylinder:±0.25D reversal,±0.50D optional<br />
Rotary prism:0△~20△,1△ step<br />
PD adjustment:48mm~80mm,1mm step<br />
Forehead rest adjustment:16mm<br />
Convergence adjustment:the optical axes of the lenses are<br />
aligned at a distance of 400mmm from the vertexes of the<br />
cornea(2mm each for right and left inward),interpupillary<br />
distance enabling convergence = 57mm to 80mm<br />
Corneal distance device:2mm forward and 5mm backward<br />
from standard plane with scale<br />
Effective field of view:19mm<br />
Dimentsions(packing):580mm(L)x430mm(W)x250mm(H)<br />
Weight(packing):7.0kgs<br />
<br />
Discount available for bulk orders!