PD METER PD82II

The "cornea reflection light coincidence method" is used. This operates by aligning luminous points on the pupils with the measuring line.
Results are displayed digitally. Three measurements are given : Right, Right + Left, left.
Results are accurate to within 0.25 mm.
Measurements can be made for a single eye or for both eyes.
Possible to measure PD of focusing-point distances ranging from 30cm to infinity.
Automatically switches OFF one minute after operation is completed, thus conserving power.
Distances from tops of cornea to lenses of frames can also be measured.
 
Forehead Bar
Nose Pad
Display of PD (R･R + L･L) or Distance from Cornea Top to Lens
Power Supply Switch
PD/ Cornea-Lens Distance Change Button
PD Adjustment Lever
Focusing-Point Distance Lever
Viewfinder