GB/T 39893-2021
ActiveHandheld electro-optical low-vision device
手持式电子助视器
Application Summary AI generated
GB/T 39893-2021 specifies technical requirements, test methods, and inspection rules for handheld electro-optical low-vision devices, including magnification, image quality, and battery performance. It applies to portable electronic magnifiers used by visually impaired individuals for reading, writing, and daily activities in healthcare and rehabilitation settings. The standard ensures product safety and usability for assistive technology manufacturers and quality supervision in China.
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