GB/T 39893-2021Handheld electro-optical low-vision device (English PDF)

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009.

1 Scope

This standard specifies the terms and definitions, technical requirements, test methods, signs and instructions for hand-held electronic vision aids.

This standard applies to handheld electronic vision aids used by people with low vision.

This standard does not apply to optical visual aids, desktop, portable and head-mounted electronic visual aids.

2 Normative references

The following documents are indispensable for the application of this document. For dated reference documents, only the dated version applies to this document. For undated reference documents, the latest version (including all amendments) is applicable to this document.

GB/T 9254 Information Technology Equipment Radio Disturbance Limits and Measurement Methods

GB 9706.1 Medical Electrical Equipment Part 1: General Requirements for Safety

GB/T 16886.1 Biological Evaluation of Medical Devices Part 1: Evaluation and Testing in the Process of Risk Management

GB/T 17626.2 Electromagnetic compatibility test and measurement technology Electrostatic discharge immunity test

GB/T 17626.3 Electromagnetic compatibility test and measurement technology Radio frequency electromagnetic field radiation immunity test

GB/T 26339 Ophthalmic optics and equipment electronic visual aids

3 Terms and definitions

The following terms and definitions apply to this document.