Illumination intensity adjusting device, system and method

Illumination intensity adjusting device, system and method

  • CN 106,597,815 B
  • Filed: 01/20/2017
  • Issued: 01/22/2021
  • Est. Priority Date: 01/20/2017
  • Status: Active Grant
First Claim
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1. An illumination intensity adjusting system is characterized in that the illumination intensity adjusting system is applied to an exposure machine and comprises an illumination intensity measuring unit, a signal conversion unit and an illumination intensity adjusting device;

  • the illumination intensity measuring unit is used for measuring the illumination intensity of each pixel unit;

    the signal conversion unit is used for converting the illumination intensity of each pixel unit into a voltage signal;

    the illumination intensity adjusting device comprises a plurality of pixel units and a plurality of adjusting circuits which are correspondingly arranged, wherein the pixel units are positioned in a light transmitting area of the exposure machine, each pixel unit comprises a first transparent electrode and an electrochromic layer, and each adjusting circuit is correspondingly connected with the first transparent electrode of each pixel unit;

    the adjusting circuit is used for controlling the voltage on the first transparent electrode according to the voltage signal, and changing the light transmission state of the electrochromic layer so as to finely adjust the illumination intensity of the corresponding pixel unit.

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