GB/T 42750-2023Measuring methods of optical radiation safety for wearable devices (English PDF)
可穿戴设备的光辐射安全测量方法
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
May 23, 2023
Implementation date
December 1, 2023
Scope
GB/T 42750-2023 is the English-translated version of 可穿戴设备的光辐射安全测量方法.
This document describes the method for measuring the optical radiation safety of wearable devices: the measurement conditions, the measurement equipment and the measurement procedure.
The document applies to the measurement of wearable devices that emit incoherent light in the wavelength range 200 nm to 3000 nm.
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Document preview — GB/T 42750-2023
National Standard of the People's Republic of China
- ICS
- 31.260
- Classification
- L 51
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- Preface
- 1 Scope
- 2 Normative references
- 3 Terms and Definitions
- 4 Measurement conditions
- 4.1 Standard Atmospheric Conditions
- 4.2 Darkroom environment
- 4.3 Power supply
- 4.4 Test sample setup
- 4.5 Security Protection
- 5 Measuring equipment
- 5.1 Spectral measurement equipment
- 5.2 Irradiance Receiver
- 5.3 Radiance receiving device
- 5.4 Variable angle test bench
- 5.5 Standard light source
- 6 Optical radiation measurement
- 6.1 Measurement of eyewear devices
- 6.2 Measurement of skin contact devices
- Appendix A (Normative) Optical Radiation Acceptance Angle
- Appendix B (Normative) Action spectral weighting function
- Reference
Foreword
This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1: Structure and Drafting Rules for Standardization Documents" drafting.
1 Scope
This document describes the optical radiation safety measurement method for wearable devices, including measurement conditions, measurement equipment and measurement steps.
This document is applicable to the measurement of wearable devices emitting incoherent light with a wavelength of 200nm~3000nm.
2 Normative references
The contents of the following documents constitute the essential provisions of this document through normative references in the text. Among them, dated references For documents, only the version corresponding to the date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to this document.
GB/T 20145-2006 Photobiological safety of lamps and lamp systems
GB/T 41265-2022 Optical Radiation Safety Requirements for Wearable Devices lampsandlampsystems-Part 4:Measuringmethods)
3 Terms and Definitions
GB/T 20145-2006, GB/T 41265-2022, IEC 62471:2006, IEC TR62471-4:2022, ISO /CIE28077.2016 defined and the following terms and definitions apply to this document.
3.1 Eyewear equipment
Products that radiate light when used next to or in close contact with the eyes.
3.2 Skin contact equipment
Products that radiate light when used in close or close contact with the skin.
3.3 Intentional viewing
The visual behavior of looking directly at a light source.
3.4 Unintentional viewing
Visual behavior that does not use a light source as a direct-looking target.
4 Measurement conditions
4.1 Standard Atmospheric Conditions
The test shall be carried out in accordance with the following standard atmospheric conditions.
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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
Referenced standards
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Related Standards
GB/T 20145-2006 — Photobiological safety of lamps and lamp systems
GB/T 41265-2022 — Optical radiation safety requirements of wearable devices
GB/T 7251.4-2026 — Low-voltage switchgear and controlgear assemblies - Part 4: Particular requirements for assemblies for construction sites (ACS)
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GB/T 42750-2023
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