Knowledge

• 27/Aug2021

  Shooting method of iris scanner

  During self-observation, open your eyes and look at the screen, move up and down, left and right until it is very clear, that is, press the stopper on the handle to analyze.

• 26/Aug2021

  Introduction of iris scanner

  ​The iris scanner is a professional iris scanner instrument used to detect changes in the iris, based on biometric security technology. It is small in size, clear in image, and easy to carry.

• 25/Aug2021

  Several characteristics of keratometer

  The jaw rest and headrest can be adjusted so that the subject’s head can be fixed during the inspection; the handle can be moved up and down to adjust the height of the instrument so that the subject’

• 24/Aug2021

  Precautions for keratometer

  Due to different manufacturers, the design and structure of the keratometer are also different. The examiner needs to understand the information provided by the manufacturer before using the keratomet

• 23/Aug2021

  Instrument structure of UV detector

  ​It consists of a set of light sources, four interference color filters, a condenser lens, a sample cell, a photomultiplier tube, a magnifying board and a logarithmic board, etc.