PD Meter (The Pupilometer)


The Pupilometer is a digital precision optical instrument used to measure distance between human pupils in the process of optometry for fitting spectacles.This device is designed in a scientific and reasonable way, intergrating technologies on mechanical hairspring orientation measurement system, optical system, ESS and microcomputer into a whole.

  • Using mechanical hairspring to level at the reflecting point of human cornea to realise the consecutive measurement. It features directness of point-sampling and high accuracy of orientation.
  • Adopting line-shaped sensors of high definition, advanced intellectualiased electronic systems and digital display which allow the testing results more visible, legible and accurate.
  • LED lamp-house and design of low power consumption ensure the prolonged service life of batteries.
  • It offers the +2.00m compensation for the degree of eyesight.
  • The brightness of LED lamp-house is adjustable.