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GB/T 42219-2022 English PDF

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US$429.00 · In stock
Delivery: <= 4 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 42219-2022: Optical measurement of high-power LED
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 42219-2022	429	Add to Cart	4 days	Optical measurement of high-power LED	Valid

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Basic data

Standard ID: GB/T 42219-2022 (GB/T42219-2022)
Description (Translated English): Optical measurement of high-power LED
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: N35
Classification of International Standard: 29.140.40
Word Count Estimation: 22,242
Date of Issue: 2022-12-30
Date of Implementation: 2023-07-01
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 42219-2022: Optical measurement of high-power LED

---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.
ICS 29.140.40 CCSN35 National Standards of People's Republic of China Optical Measurement of High Power LEDs Posted on 2022-12-30 2023-07-01 implementation State Administration for Market Regulation Released by the National Standardization Management Committee

Preface III 1 Scope 1 2 Normative references 1 3 Terms and Definitions 1 4 Measurement conditions 1 5 Measurement method at specified junction temperature 2 6 Optical measuring equipment 4 7 Optical measurement parameters 5 8 Uncertainty of measurement9 Appendix A (informative) Temperature dependence of HP-LED optical parameters 11 Appendix B (informative) The method of extrapolating the forward voltage to UF(0)12 Appendix C (informative) The method of setting the junction temperature of HP-LED by measuring the thermal resistance13 Appendix D (Normative) Calculation of Spectral Mismatch Correction Factor and Angle Mismatch Correction Factor 15 Reference 16

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. Please note that some contents of this document may refer to patents. The issuing agency of this document assumes no responsibility for identifying patents. This document is proposed by China National Light Industry Council. This document is under the jurisdiction of the National Standardization Technical Committee of Lighting Appliances (SAC/TC224). This document is drafted by. Hangzhou Yuanfang Optoelectronics Information Co., Ltd., China Institute of Metrology, Foshan Nationstar Optoelectronics Co., Ltd. Co., Ltd., Xiamen Lidaxin Lighting Co., Ltd., Guangdong Product Quality Supervision and Inspection Research Institute, Zhejiang Electronic Information Product Inspection Research Institute, Xiamen Store Product Quality Supervision and Inspection Institute. The main drafters of this document. Chen Cong, Liu Hui, Xie Zhiguo, Chen Yousan, Li Zili, Xue Xiaoxiao, Ge Lihong, Zhao Weiqiang, Pan Jiangen. Optical Measurement of High Power LEDs

1 Scope

This document describes the measurement methods of optical parameters such as photometric, radiometric and chromatic parameters of high-power LEDs (HP-LEDs). This document applies to laboratory optical measurements of HP-LEDs with junction temperature as reference temperature. This document is applicable to the optical measurement of visible light HP-LED, and the optical measurement of non-visible light LED can refer to this document. This document applies to single-core and multi-core HP-LEDs powered by DC [such as high-voltage LEDs (HV-LEDs) and LEDs on substrates (COB LED)] optical measurement. This document does not apply to AC driven LEDs, organic light emitting diodes (OLEDs), LED modules, LED light engines, LED lamps and Optical measurement of LED products such as LED lamps.

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 5702-2019 Evaluation method for color rendering of light sources GB/T 7922-2008 Method for measuring the color of lighting sources GB/T 24824-2009 Test methods for LED modules for general lighting GB/T 24826-2016 Terms and definitions of LED products and related equipment for general lighting GB/T 39394-2020 Test methods for LED lamps, LED lamps and LED modules

3 Terms and Definitions

The following terms and definitions defined in GB/T 24826-2016 and GB/T 39394-2020 apply to this document. 3.1 High-power LED high-powerLED; HP-LED LED packages that require heat sinks or other thermal management methods to function properly. Note. When HP-LED is working normally, it will generally be equipped with a special cooling device to ensure that the junction temperature of its PN junction will not be too high. 3.2 Temperature-control mount temperature-controlLEDmount;TCM Contains cooling or heater and mounting holes, the temperature can be controlled by the temperature controller. NOTE. Thermoelectric coolers/heaters are commonly used in TCMs. In this document, TCM is used to control the junction temperature of HP-LEDs.

4 Measurement conditions

4.1 Aging Direct measurement without aging. ......

Image

Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 42219-2022_English be delivered?

Answer: Upon your order, we will start to translate GB/T 42219-2022_English as soon as possible, and keep you informed of the progress. The lead time is typically 2 ~ 4 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of GB/T 42219-2022_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 42219-2022_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.

Question 3: Does the price include tax/VAT?

Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countries

Question 4: Do you accept my currency other than USD?

Answer: Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.