Measuring
Range
|
Spherical
£º-19.00D¡×+16.75D, with minimum reading 0.25D
or 0.12D (when +0.12D auxiliary lens or optional
+/-0.12D lens is in use)
+26.75D to -29.00D (when optional +/-Lens is
in use)
|
Cylinder
£º 0D¡×-6.00D with minimum reading 0.25D (when
auxiliary lens is in use) 0D to 8.00D (when
-2.00D auxiliary lens is in use)
|
Astigmatic
Axis Scal£º0¡ã¡×180¡ã in 5¡ã steps |
Rotary
Prism |
0¡÷¡×20¡÷
in 1¡÷D step |
PD£¨Pupil
Distance£© |
48mm¡×80mm
in 1mm step (right and left astigmatic axis) |
| Cross
cylinder |
¡À0.25D,
reversal type (synchronized with astigmatic
axis)
+/-0.50D is option |
Forehead
rest adjustment |
16mm
backward and forward |
Convergence |
The
optical axes of the lenses are aligned at a
distance of 400mm from the vertexes of the corneas
(2mm each for right and left inward),. Interpupillary
distance enabling convergence=57mm to 80mm |
Corneal
distance devise |
2mm
for forward and 5mm backward from standard plance;
with scal |
Effective
field of view |
19
mm |
Dimensions |
338(L)¡Á99(W)¡Á292(H)mm¡¤mm¡¤mm |
Weight |
5kg |
