PD Meter optometry concentrator making it easier and more

making it easier and more convenient

but exceed the growing demands and expectations of users who cherish independence

spectral processing

Radius of curvature

PD Meter optometry concentrator making it easier and morePD Meter Description The device is a scicentific and perfect design, consisting of measurement system, optical system,ESS and computer software system1. Using mechanical hairspring to level at the reflecting point of human cornea to realize the consecutive measurement. It features direct point sampling and high accuracy of orientation; 2. Adopting high precision line shaped sensors, advanced intellectualized electronic system and digital display which