This document describes the radiance and spectral radiance measurement methods to be performed to determine the accessible optical radiation level of lamps and lamp systems in accordance with GB/T 30117 (all parts). This document is intended for actual measurement use by manufacturers, test organizations, safety personnel and other relevant personnel. Note: This document involves Class A and Class B assessments. Class A assessment is an accurate measurement method that uses sophisticated spectral radiation measurement equipment to measure accessible optical radiation and can be used in all situations; Class B assessment is a measurement using ordinary and simple instruments and is only used as a preliminary screening and is not suitable for use as a rigorous evaluation report.

ICS31.260
CCS L 51
National Standard of the People's Republic of China
GB/T30117.4—2023
Photobiological safety of lamps and lamp systems-Part 4 : Measuring methods(IEC TR 62471-4:2022,MOD)
2023-11-27 Issued
State Administration for Market Regulation
Standardization Administration of the People's Republic of China
2024-06-01 Implementation
Normative References
Terms, Definitions and Abbreviations
Terms and Definitions
Abbreviations
Application
Safety Precautions
Hazard Assessment Overview
Hazard Category Selection
Assessment Levels
Initial Screening
Measured physical quantity
Measurement uncertainty
Test conditions
Darkroom (Grade A):
Environmental conditions (Grade A)
Power supply
Product configuration
Optical alignment·
6Instrument performance: Class A instrument
Spectral irradiance and radiance
Imaging equipment
Transient emission
Size and position of light source
Instrument performance: Class B instrument
Irradiance or radiance
Position and Subtending angle
Transient emission
Appendix A (informative)
Appendix B (informative)
Determination of hazard category
Description of instrument
GB/T30117.4—2023
GB/T30117.4—2023
Dual monochromator·bzxz.net
Single monochromator
Array spectrometer·
Detector·
Incident optical device…·
Measurement geometry·
2D imaging detector
Appendix Appendix C (Informative)
Overview·
Example 1-
Example 2
Example 3
Example 4
Appendix D (Informative)
Appendix E (Informative)
Overview·
Application Examples
LED Flashlight:
Infrared Tungsten Filament Lamp
Compact Fluorescent Lamp (CFL)
LED Bulb
Relationship between the Radiance of a “Real” Source and the Spatially Averaged Radiance Transient Emission Measurements
Pulse Duration·|| tt||Average irradiance and average radiance·
Appendix F (informative)
Appendix G (informative)
G.2 Report
Uncertainty analysis
Report format
Appendix H (informative) Stray radiation
Appendix I (informative) Spectral irradiance extrapolation method for thermal radiation sources References
Schematic diagram of irradiance measurement
Consideration of field of view coverage status
Example of direct radiance measurement using lens and aperture stop. Indirect measurement of radiance
Rectangular light Source Example
Example of Non-Uniform Radiance Distribution…
Example of Emission Profile
Example of Diffuser Optics
Schematic Diagram of Irradiance Measurement
Geometry of Radiance Measurement with a Single Thin Lens - General Geometry of Radiance Measurement
Aperture Stop Behind the Lens
Aperture Stop in Front of the Lens
Example of 2D Imaging Detector
Example of LED Flashlight
Example of Radiance Distribution
Spectral Radiation Distribution
Example of Tungsten Infrared Lamp||t t||Radiance distribution examples
Spectral radiance and irradiance distribution
Radiance distribution of a lamp
Example of a compact fluorescent lamp (CFL)
Radiance distribution examples
Spectral radiance and irradiance distribution
Radiance distribution examples
Example of an LED bulb.
Common measurement conditions for determining (time-integrated) radianceB(in)-weighted radiance distribution of a phosphor-coated white LED deviceExample of a transient pulse waveform
Example of a white LED lamp with adjustable color temperature||tt ||Single pulse waveform
Example of pulse measurement of spectrum varying with time Optical radiation hazards considered in the corresponding parts of GB/T30117 Table 1
Table 2 Recommended wavelength accuracy
Table 3 Recommended bandwidth
Table A.1 Examples of potential hazard categories
GB/T30117.4—2023
GB/T30117.4—2023
This document was drafted in accordance with the provisions of GB/T1.1-2020 "Guidelines for standardization work Part 1: Structure and drafting rules for standardization documents".
This document is Part 4 of GB/T30117 "Photobiological safety of lamps and lamp systems". GB/T30117 has published the following parts:
Part 2: Guidelines for manufacturing requirements related to safety of non-laser optical radiation; Part 3: Guidelines for safe use of intense pulsed light source equipment for human body; Part 4: Measurement methods;
Part 5: Projectors,
This document is modified to adopt IECTR62471-4:2022 "Photobiological safety of lamps and lamp systems Part 4: Measurement methods". The file type is adjusted from ISO's technical report to my country's national standard. Compared with IEC TR62471-4:2022, this document has made the following structural adjustments: Appendix C corresponds to Appendix F in IEC TR62471-4:2022; Appendix D corresponds to Appendix I in IEC TR62471-4:2022; Appendix E corresponds to Appendix D in IEC TR62471-4:2022; - Appendix F corresponds to Appendix E in IEC TR62471-4:2022; Appendix G corresponds to Appendix H in IEC TR62471-4:2022; - Appendix H corresponds to Appendix G in IEC TR62471-4:2022; Appendix I corresponds to Appendix C in IEC TR62471-4:2022. The technical differences between this document and IECTR62471-4:2022 and their reasons are as follows: IEC62471 is replaced by the normatively referenced GB/T30117 (all parts) to facilitate the application of this document: "For retinal thermal hazards, measure the radiance dose and/or peak radiance of the pulse" is added to E.1, and "For retinal thermal hazards, measure the width of the pulse (1uS~0.25s) is added to E.2. The supplementary content is based on the International Commission on Non-Ionizing Radiation Protection (ICNIRP2013) on pulsed light The following editorial changes have been made to this document:
Added notes in Chapter 1;
Deleted the abbreviation "HID" in 3.2 because the term does not appear in the text; Deleted the note below Table 1;
Deleted Note 2 in 4.7.4.3;
Added the note below formula (3):
In the figures, reference numbers are used instead of text descriptions, and the reference number descriptions are supplemented; symbol descriptions are added to some letter symbols in the figures; "L." in formula (D.2) is changed to "L", "Φ." " is changed to "". Please note that some contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents. This document is proposed by the China Machinery Industry Federation. This document is under the jurisdiction of the National Technical Committee for Standardization of Optical Radiation Safety and Laser Equipment (SAC/TC284). The drafting units of this document are: Zhejiang Sanse Optoelectronic Technology Co., Ltd., Foshan Electrical Lighting Co., Ltd., Hangzhou Santai Testing Technology Co., Ltd., Zhejiang Smart Lighting Technology Co., Ltd., Fujian Product Quality Inspection Institute, Guangdong Zhongshan Quality and Metrology Supervision and Inspection Institute, Hangzhou Quality and Technical Supervision Inspection Institute, China Institute of Metrology, the First Medical Center of the General Hospital of the People's Liberation Army, Xiamen Product Quality Supervision V
GB/T30117.4—2023
Institute of Inspection and Quarantine of Zhejiang University, Zhejiang Smart and Healthy Lighting Research Center, Changzhou Inspection, Testing and Standard Certification Institute, Jiangsu Pinzheng Optoelectronics Technology Co., Ltd., Shandong Huading Weiye Energy Technology Co., Ltd., Shanghai Yaming Lighting Co., Ltd., Zhongshan Songwei Lighting Appliance Co., Ltd. The main drafters of this document are: Mou Tongsheng, Ding Wenchao, Mou Xi, Peng Zhenjian, Xu Qiaoyun, Gu Ying, Miao Fei, Zhu Tengfei, Dai Caihong, Sun Zhehui, Chen Zhizhong, Hu Qiuhong, Jia Feng, Wang Xinyue, Sun Heyuan, Lu Can, Yang Fubing, Zhu Huarong, Xie Wei. Introduction
GB/T30117.4—2023
Except for special irradiation situations, most lamps and lamp systems are safe and will not cause photobiological hazards; while a complete photobiological safety assessment requires sophisticated instruments and detailed analysis. In order to provide an application framework for detailed measurements only when necessary, this document introduces two measurement methods. Class A refers to high-precision, laboratory-based technology; while Class B means that the available emission is estimated using ordinary and simple instruments, which is only used as a preliminary screening and is not suitable for use when issuing data reports for strict evaluation. GB/T30117 is intended to consist of the following parts.
Part 1: Basic requirements. The purpose is to standardize the assessment requirements, hazard types, emission limits and hazard level classification methods for the photobiological safety of incoherent optical products
Part 2: Guidelines for manufacturing requirements related to non-laser optical radiation safety. The purpose is to standardize the basic principles of optical radiation safety requirements for non-laser products and guide the corresponding general product specifications to stipulate safety requirements. Part 3: Guidelines for the safe use of intense pulsed light source equipment for the human body. The purpose is to provide guidance on establishing safety measures and procedures to protect people exposed to optical radiation hazards and related hazards. Part 4: Measurement methods. The purpose is to standardize the test conditions and test methods for the photobiological safety of lamps and lamp systems. Part 5: Projectors. The purpose is to standardize the photobiological safety requirements for optical radiation emitted by projectors. Part 6: Ultraviolet lamp products. The purpose is to standardize the production, installation, use and human protection of ultraviolet lamp products to ensure the optical radiation safety of related products. Part 7: Light sources and lamps that mainly emit visible light. The purpose is to provide an assessment method for photobiological safety for products related to light sources and lamps that mainly emit visible light, based on the lighting objects and scenes. 1 Scope
Photobiological safety of lamps and lamp systems
Part 4: Measurement methods
GB/T30117.4—2023
This document describes the radiance and spectral radiance measurement methods to be performed to determine the achievable optical radiation levels of lamps and lamp systems in accordance with GB/T30117 (all parts)
This document is applicable to actual measurement use by manufacturers, testing organizations, safety personnel and other relevant personnel. Note: This document involves Class A and Class B assessments. Class A assessment is an accurate measurement method that uses precise spectral radiation measurement equipment to measure the accessible optical radiation and can be used in all cases; Class B assessment uses ordinary and simple instruments for measurement and is only used as a preliminary screening, and is not suitable for use as a strict evaluation report.
2 Normative references
The contents of the following documents constitute the essential terms of this document through normative references in the text. Among them, for dated references, only the version corresponding to that date applies to this document; for undated references, the latest version (including all amendments) applies to this document.
GB/T30117 (all parts) Photobiological safety of lamps and lamp systems
3 Terms, definitions and abbreviations
3.1 Terms and definitions
The terms and definitions defined in GB/T30117 (all parts) and the following terms and definitions apply to this document. 3.1.1
taccessibleemission
Accessible emission
Radiation level determined at a specific distance and under the measurement conditions defined in the corresponding part of GB/T 30117. Note: Accessible emission is compared with the accessible emission limit to determine the applicable risk group. 3.1.2
Angular response
angularresponse
Detector output signal as a function of the angle of the input beam 3.1.3
Aperture stop
Aperture stop
The opening that defines the acceptance area for the measurement of average light emission. 3.1.4
Pupil
The image of the aperture stop (3.1.3) seen in the object space of an optical system Note 1: The human pupil defines the cone angle of the light beam received in the object space. Note 2: If there is no lens in front of the aperture stop, the position and size of the human pupil are the same as the aperture stop. Optics in front of the aperture stop can magnify or reduce the image and change the position of the human pupil relative to the actual aperture stop.3
aperture stop
aperturestop
opening defining the acceptance area for the measurement of the average light emission. 3.1.4
entrancepupil
image of the aperture stop (3.1.3) in an optical system as seen in object space Note 1: The human pupil defines the cone angle of the light beam received in object space. Note 2: If there is no lens in front of the aperture stop, the position and size of the human pupil are the same as those of the aperture stop. Optical elements in front of the aperture stop can magnify or reduce the image and change the position of the human pupil relative to the actual aperture stop.3
aperture stop
aperturestop
opening defining the acceptance area for the measurement of the average light emission. 3.1.4
entrancepupil
image of the aperture stop (3.1.3) in an optical system as seen in object space Note 1: The human pupil defines the cone angle of the light beam received in object space. Note 2: If there is no lens in front of the aperture stop, the position and size of the human pupil are the same as those of the aperture stop. Optical elements in front of the aperture stop can magnify or reduce the image and change the position of the human pupil relative to the actual aperture stop.
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