Corneal radius of curvature
5.5 – 11mm
Corneal refractive power
28 – 60D
Axis of corneal astigmatism
Diopter adjusting scale
Voltage / Frequency
AC 110V/60Hz or 220V/50Hz
Internal Scale Readings
The AK-300 features easy to align mire images with:
All reading are thus placed in one field of view, greatly simplifying and speeding up measurements. (Example: The diagrams on the right show mire images
in perfect focus and without astigmatism, with radius of curvature 8.0mm and vertex (V) and horizontal (H) axes).
Contact lens measurement
Replace the chin rest with the supporting column and place the contact lens holder, with the contact lens attached to it, on top of the column.
It will be possible to measure the radius of curvature of the concave or convex face, depending on which faces the instrument,
in the same manners as when measuring the cornea.
Applied which have long-life time, save energy and no heat