Technical date
Dimension of surveyors : 18x24 mm
Distance of surveyors Staff and cornea : 175mm
Total magnification : 18x
Objectives magnification : 1.2x
Eyepieces magnification :15x
Curvature Radius : 5.5~11mm
Diopter :30-60D
Least graduate : Radius:0.02 mm Diopter : 0.25D
Refractive index : 1.3375
Least Diameter of measure : R= 5.5mm Φ1.65mm, R=7.5 mmΦ2.3mm , R=11MM Φ4MM
Astigmatism graduate range : 0°~ 180°
Astigmatism graduate alternation : 5°
Illumination bulb: 6V 20W Halogen Bulb
Input Voltage : 220V/110V 50HZ/60HZ
Range of rise or drop of slipway : 0-30mm
Move range of slipway : left and right : 100mm, front and back: 90mm
Fluctuate move range of jaw part :80mm