LHQYA Polarizing Stress Tester, Lens Stress Tester, Uniform Light Without Astigmatism/6 Excellent Functions/timer Switch, Used In Eye Hospitals

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Product description

  • Function You can observe the light and dark stripes of the lens, the force distribution during the injection molding process, check the changes in the installation force and the difference between real and fake crystal lenses.
  • Usage Suitable for major optical shops, vision care centers, hospitals, optometry training centers, etc. to detect the stress status of glasses, determine the authenticity of the crystal, and be used for glasses production and testing.
  • 1-button operation 1-button operation, plug in the power and press the switch to use. Energy saving; adjust the brightness of the light source by rotating the upper polarizing dial, easy to use, fast and efficient.

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