Shanghai Jiahui Optical Instrument Co.,Ltd
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Shanghai Jiahui Optical Instrument Co.,Ltd
    HomeProducts Optometry Equipment Visual Chart Light Box JH-44 LED 2.5M Standard logarithmic visual chart light box, 2.5CM thickness
    JH-44-LED-Standard-logarithmic-visual-chart-light-box
    1. JH-44-LED-Standard-logarithmic-visual-chart-light-box
    2. JH-44-LED-Standard-logarithmic-visual-chart-light-box
    3. JH-44-LED-Standard-logarithmic-visual-chart-light-box
    4. JH-44-LED-Standard-logarithmic-visual-chart-light-box

    JH-44 LED 2.5M Standard logarithmic visual chart light box, 2.5CM thickness

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    JH-44
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    Description


    Specification:
    Size: 620 * 280 * 25mm
    Vision range: 4.0~5.3 (0.1~2.0)
    Logarithmic vision chart
    Convenient maintenance, just open box to check circuit or update the fluorescent tube.
    Cabinet inside and outside adopt electrostatic spraying, beautiful and durable.
    Chart board adopts organic glass plate, not easy to fade.
    Choose fluorspar lamp as light source, configuration of electronic ballast, using voltage range is wide.
    Use back shining method, solve the influence caused by a lack of natural light when testing far and near vision.




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