Home > Optometry Instrument > Visual chart light box > 2.5M visual chart light box > JH-40 2.5M LED Children logarithmic visual chart light box

JH-40 2.5M LED Children logarithmic visual chart light box

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Product Abstract:

SIZE:62x28x2.5 (cm)


Product Description

 

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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