Electronic Keratometer is made of three parts, including light source, Measurement of optical systemanddisplay system. To focus, the operator need make the unit up and down, back and forth. When the focusing condition is met, When all the four image points are in the center of the screen, instrument will calculate automatically the curvature radius and diopter and display the result on the screen.
What is the technical data of our portable keratometer?
Measuring range:6.5mm~9.5mm curvature radius
Center measuring area of Corneal Radius: Φ3mm~Φ4mm
Digital Display Resolution of curvature radius: 0.01mm
Precision of curvature radius of cornea: ±0.05mm
Axial resolution of the main meridian: 1°
Radial deviation of the measurement of the main meridian
a)curvature radius deviation of the main meridian≤0.3mm,measurement of main meridian axial deviation: ±4°
b)curvature radius deviation of the main meridian>0.3mm,measurement of main meridian axial deviation: ±2°
Output:Wireless infrared thermal printer
Voltage: DC4.5V(three AA battery)
Rated input power: 500mW+15%
What is the environmental requirement of our keratometer?
Transport and save Ambient temperature: -40℃~+55℃ Relative moisture: ≤95% Atmospheric pressure: 500hPa~1060hPa Ambient temperature: +5℃~+40℃ Relative moisture: ≤80% Atmospheric pressure: 700hPa~1060hPa