JH-5 5M LED Children Logarithmic Visual Chart Light Box 25mm

JH-5 5M LED children logarithmic visual chart light box, 2.5cm thickness

Item# JH-5

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Description

Why Choose the JH-5 5M LED Children Logarithmic Visual Chart Light Box?
1) Child-Friendly Design: Our children's standard logarithmic light boxes feature vivid, familiar items that kids instantly recognize, making vision testing less intimidating and more engaging.
2) Perfect for Early Years: Specifically designed for children under 7 years old, ensuring accurate and comfortable vision screening at a critical developmental stage.
3) Essential Professional Tool: A must-have for hospital ophthalmology departments, maternity and child care centers, and kindergartens for reliable pediatric vision assessments.
4) Built to Last: The box is crafted from pure aluminum alloy thickened plank, offering superior durability and a professional look.
5) Crystal-Clear Display: The showing board is made of extra thick PVC board that is not easy to break, provides a glare-free view, and ensures no dazzling or discomfort during use.
6) Ultra-Slim Modern Look: Appearance features the latest ultra-thin design, saving space while adding a sleek, contemporary feel to any clinic or classroom.
7) Uniform Illumination: The light source delivers even brightness with a uniformity error (UDLR) of no more than 20%, ensuring consistent and accurate test results every time.
Technical Specifications:
1) Product Size: 920 * 280 * 25mm (LWH) – a compact, space-saving footprint ideal for any professional setting.
2) Standard Measurement Vision Range: 4.0~5.3 – covers a wide spectrum for comprehensive pediatric vision screening.
3) International Compliance: Produced according to international standard GB11533-89, guaranteeing reliable performance and safety.
4) Brightness: 120~300cd/m², uniform and without a glance – provides comfortable, glare-free illumination for young eyes.
5) Protection Angles: Equipped with protective angles for added safety and stability during use.