GB/T 39771.1-2021 English PDFUS$259.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 39771.1-2021: Optical radiation safety of LEDs - Part 1: Safety requirements and classification Status: Valid
Basic dataStandard ID: GB/T 39771.1-2021 (GB/T39771.1-2021)Description (Translated English): Optical radiation safety of LEDs - Part 1: Safety requirements and classification Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: L53 Word Count Estimation: 14,185 Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration GB/T 39771.1-2021: Optical radiation safety of LEDs - Part 1: Safety requirements and classification---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order. Optical radiation safety of LEDs - Part 1.Safety requirements and classification ICS 31.260 L53 National Standards of People's Republic of China Semiconductor light-emitting diode light radiation safety Part 1.Requirements and classification methods Released on 2021-03-09 2021-10-01 implementation State Administration of Market Supervision and Administration Issued by the National Standardization Management Committee Table of contentsForeword Ⅰ Introduction Ⅱ 1 Scope 1 2 Normative references 1 3 Terms and definitions 1 4 Limits of optical radiation safety 3 5 Classification 4 Appendix A (informative appendix) Ultraviolet harm to the retina of aphakic humans 6 Appendix B (Normative Appendix) Spectral function of the effects of ultraviolet hazards on the eyes and skin 9 Appendix C (Normative Appendix) Spectral Function of Harmful Retina Blue Light 10 Appendix D (Informative Appendix) Guidelines for the Safety Evaluation of Light Radiation of LED Application Products 11ForewordGB/T 39771 "Semiconductor Light-Emitting Diode Optical Radiation Safety" is divided into 2 parts. ---Part 1.Requirements and classification methods; ---Part 2.Test method. This part is Part 1 of GB/T 39771. This section was drafted in accordance with the rules given in GB/T 1.1-2009. Please note that some of the contents of this document may involve patents. The issuing agency of this document is not responsible for identifying these patents. This part is proposed and managed by the Ministry of Industry and Information Technology (Electronics) of the People's Republic of China. Drafting organizations of this section. Hangzhou Zhejiang University Sanse Instrument Co., Ltd., China Electronics Standardization Institute, National Lighting Quality Supervision and Inspection Inspection Center (Zhongshan), Zhejiang Sanse Optoelectronics Technology Co., Ltd., Guangzhou Saixi Standard Testing and Research Institute Co., Ltd., Hangzhou Product Quality Supervision and Inspection Research Institute. The main drafters of this section. Qiao Bo, Wang Jianping, Zhao Ying, Liu Xiujuan, Peng Zhenjian, Zhou Gang, Qian Feng, Mou Tongsheng, Li Junkai, Xu Ziyu.IntroductionHigh-brightness (radiance) semiconductor light-emitting diodes have been widely used in lighting, display and other consumer electronic products, and their optical radiation The impact on human health is one of the product safety issues. This section mainly considers semiconductor light-emitting diodes with light radiation wavelengths in the near ultraviolet and visible light regions. The possible light radiation hazards are Ultraviolet hazards of eyes and skin, near-ultraviolet eye hazards, retinal blue light hazards and retinal heat hazards. At present, semiconductor light-emitting diodes The retinal heat hazard is not obvious, and it is temporarily out of the scope of this section. The blue light hazard of the retina is related to the absorption of short-wavelength blue and violet light by the cornea and lens of the eye. External filtering effect, the main damage to the retina is blue light radiation. For infants, intraocular lenses (related to the cut-off wavelength) and people with aphakia In some cases, some ultraviolet radiation may be directly irradiated to the retina. This section is recommended as a lens for consideration, see Appendix A. Due to the potential impact of long-term use of semiconductor light-emitting diodes on human health, the relevant situation is still under study. Semiconductor light-emitting diode light radiation safety Part 1.Requirements and classification methods1 ScopeThis part of GB/T 39771 specifies the optical radiation safety requirements and hazard levels of semiconductor light-emitting diodes (hereinafter referred to as LED) Class method. This section applies to single-chip or multi-chip LEDs with light radiation wavelengths in the near-ultraviolet and visible regions (300nm~780nm).2 Normative referencesThe following documents are indispensable for the application of this document. For dated reference documents, only the dated version applies to this article Pieces. 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 30117.2-2013 Photobiological safety of lamps and lamp systems Part 2.Non-laser optical radiation safety related manufacturing requirements guide SJ/T 11395-2009 Semiconductor Lighting Terminology3 Terms and definitionsGB/T 20145-2006, GB/T 30117.2-2013 and SJ/T 11395-2009 defined and the following terms and definitions apply In this document. 3.1 Emission limit For a specific hazard type, the maximum allowable light emission value. 3.2 Smalsource A light source whose subtended angle is smaller than the acceptance angle. Note. The opposite angle refers to the viewing angle formed by the observation source facing the observer's eyes or the measuring point. 3.3 UV hazard for the eyes and skin UVhazardfortheeyeandskin The potential photochemical hazards when the eyes and skin are exposed to ultraviolet radiation, the effective spectrum range is.200nm~400nm. Note. The starting wavelength of this section is 300nm. 3.4 UV hazard irradiance for the eyes and skin UVhazardirradiancefortheeyeandskin The weighted product of the spectral irradiance Eλ in the spectral range from 300nm to 400nm and the spectral function SUV(λ) (see Appendix B) The value obtained by dividing is calculated as shown in formula (1). ES=∑ λ=300 Eλ·SUV(λ)·Δλ (1) ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 39771.1-2021_English be delivered?Answer: Upon your order, we will start to translate GB/T 39771.1-2021_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time.Question 2: Can I share the purchased PDF of GB/T 39771.1-2021_English with my colleagues?Answer: Yes. 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