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GB/T 43590.506-2025: Laser display devices - Part 5-6: Measuring methods for optical performance of projection screens
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Laser display devices - Part 5-6: Measuring methods for optical performance of projection screens
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GB/T 43590.506-2025
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Basic data | Standard ID | GB/T 43590.506-2025 (GB/T43590.506-2025) | | Description (Translated English) | Laser display devices - Part 5-6: Measuring methods for optical performance of projection screens | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | L53 | | Classification of International Standard | 31.120 | | Word Count Estimation | 22,264 | | Date of Issue | 2025-04-25 | | Date of Implementation | 2025-08-01 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 43590.506-2025: Laser display devices - Part 5-6: Measuring methods for optical performance of projection screens
---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 31.120
CCSL53
National Standard of the People's Republic of China
Laser display devices
Part 5-6.Test methods for optical performance of projection screens
Laser display devices -
(IEC 62906-5-6.2020,Laserdisplays-Part 5-6.Measuringmethodsfor
Released on 2025-04-25
2025-08-01 Implementation
State Administration for Market Regulation
The National Standardization Administration issued
Table of contents
Preface III
Introduction IV
1 Scope 1
2 Normative references 1
3 Terms, definitions and abbreviations 1
3.1 Terms and Definitions 1
3.2 Abbreviations 2
4 Standard test conditions 2
4.1 General 2
4.2 Environmental conditions 2
4.3 Power supply 2
4.4 Warm-up time 2
4.5 Measuring coordinate system 2
4.6 Darkroom conditions 3
4.7 Measuring equipment 3
5 DUT installation and adjustment 4
5.1 Projector and screen placement 4
5.2 Focus of the projector 4
5.3 Projector Setup Conditions 5
5.4 Standard image measurement position 5
6 Test signal pattern 6
7 Test Methods 6
7.1 Screen Gain 6
7.2 Directivity and half-gain angle of screen gain 8
7.3 Screen Gain Uniformity 9
7.4 Angular characteristics of speckle contrast 10
Appendix A (Informative) Screen Color Shift 12
A.1 Purpose 12
A.2 Test conditions 12
A.3 Test method 12
Appendix B (Informative) Directivity of screens using Fresnel lenses 13
Appendix C (Informative) Angle characteristics of speckle contrast under different screens 15
Reference 17
Figure 1 Coordinate system of viewing direction 3
Figure 2 Image example of vertical height (V) and horizontal width (H) used for calibration 4
Figure 3 Standard measurement positions on the screen (9 measurement points) 5
Figure 4 DUT setup example 6
Figure 5 Full screen test signal pattern 6
Figure 6 Geometric arrangement for measuring screen gain 7
Figure 7 Measurements in horizontal and vertical viewing directions 9
Figure 8.Geometric setup for measuring speckle contrast by changing viewing direction11
Figure B.1 Directivity of the screen under different settings 13
Figure C.1 Optical configuration for speckle contrast measurement in different viewing directions 15
Figure C.2 Angular characteristics of speckle contrast obtained under different screens and different despeckle conditions 15
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.
This document is part 5-6 of GB/T 43590 "Laser display devices". GB/T 43590 has published the following parts.
--- Part 1-2.Terms and text symbols;
--- Part 5-1.Test methods for optical performance of laser front projection displays;
--- Part 5-2.Optical measurement method for speckle contrast;
--- Part 5-3.Laser projection display (screen) image quality test method;
--- Part 5-4.Optical test method for colored speckle;
--- Part 5-6.Test methods for optical properties of projection screens;
--- Part 5-7.Test method for image quality of laser scanning displays under the influence of speckle.
This document is equivalent to IEC 62906-5-6.2020 "Laser displays - Part 5-6.Test methods for optical performance of projection screens".
The following minimal editorial changes were made to this document.
---Change the name of the standard to "Laser display devices Part 5-6.Test methods for optical performance of projection screens".
Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents.
This document was proposed by the Ministry of Industry and Information Technology of the People's Republic of China.
This document is under the jurisdiction of the National Technical Committee for Standardization of Electronic Display Devices (SAC/TC547).
This document was drafted by. Hangzhou Santai Testing Technology Co., Ltd., Chengdu Fister Technology Co., Ltd., Hisense Visual Technology Co., Ltd.
Company, Qingdao Hisense Laser Display Co., Ltd., Qinhuangdao Meishida Audiovisual Testing Technology Co., Ltd., Shenzhen Guangfeng Technology Co., Ltd.
Company, Sichuan Changhong Electric Co., Ltd., Zhejiang Youshengkang Technology Co., Ltd., and Shanghai Weishirui Optoelectronics Technology Co., Ltd.
The main drafters of this document are. Sun Zhehui, Wu Qingfu, Liu Weidong, Wang Xinyue, Zhang Yimin, Zhong Qiang, Dai Jie, Li Weishan, Wang Jianping, Yang Jiayi,
Li Junkai, Yue Dingfei, Wang Weisheng.
Introduction
The new display industry is a strategic, basic and leading industry for national economic and social development. Laser display devices are new display
GB/T 43590 "Laser Display Devices" is a standard that guides the production, inspection, and import and export of laser display devices in my country.
The standards for import trade demand are planned to consist of the following parts.
--- Part 1-2.Terminology and text symbols. The purpose is to establish the preferred terms, definitions and
symbol.
--- Part 5-1.Test method for optical performance of laser front projection display. The purpose is to establish the laser light source or containing laser light source
Test method for optical performance of mixed light source front projector displays.
--- Part 5-2.Optical measurement method for speckle contrast. The purpose is to establish the optical properties of laser light sources and mixed light containing laser light sources.
A method for measuring the monochromatic speckle contrast of laser display devices with laser sources.
--- Part 5-3.Laser projection display (screen) image quality test method. The purpose is to establish the laser projector and screen combination
Testing method for image quality of full-frame laser projection display (screen).
--- Part 5-4.Optical test method for colored speckle. The purpose is to establish an optical test method for colored speckle of laser display devices.
method.
--- Part 5-5.Optical test methods for laser raster scanning retinal direct projection displays. The purpose is to establish
Scanning retinal direct projection display optical testing method.
--- Part 5-6.Test methods for optical performance of projection screens. The purpose is to establish the laser projection display screen based on the photometric characteristics
Test method for optical performance of screen.
--- Part 5-7.Test method for image quality of laser scanning display under the influence of speckle. The purpose is to establish the image quality of laser scanning display under the influence of speckle noise.
A test method for the image quality of laser scanning displays on screens with no visible fluorescent light.
--- Part 5-11.Optical test methods for laser light source modules. The purpose is to establish the optical performance of laser display device light source modules
Test method.
--- Part 5-12.Opto-mechanical module test method. The purpose is to establish the performance test method of laser display opto-mechanical module.
--- Part 5-16.Test methods for wavelength conversion components for laser display. The purpose is to establish the performance of wavelength conversion components for laser display.
Can test methods.
--- Part 5-18.Optical test method for fiber optic scanning laser display using grid type. The purpose is to establish the optical performance of fiber optic scanning devices using grid type.
An optical test method for laser beam scanning imaging during format scanning.
Laser display devices
Part 5-6.Test methods for optical performance of projection screens
1 Scope
This document describes standard test conditions and test methods for the optical performance of projection screens based on photometric properties, including the
Test method for screen gain and speckle contrast in different directions.
This document applies to equipment where a projection screen and a laser projector are used as a fixed combination to form a real image, including front projection and rear projection
Flat screen.
This document does not apply to other optical see-through screens such as head-up displays.
2 Normative references
The contents of the following documents constitute essential clauses of this document through normative references in this document.
For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to
This document.
(IEV)-Part 845.Lighting]
Note. GB/T 2900.65-2023 Electrical terminology lighting (IEC 60050-845.2020, IDT)
Note. GB/T 7247.1-2024 Safety of laser products Part 1.Equipment classification and requirements (IEC 60825-1.2014, IDT)
lampsystems-Part 5.Imageprojectors)
Note. GB/T 30117.5-2019 Photobiological safety of lamps and lamp systems Part 5.Projectors (IEC 62471-5.2015, IDT)
Note. GB/T 43590.102-2023 Laser display devices Part 1-2.Terminology and text symbols (IEC 62906-1-2.2015, IDT)
Note. GB/T 43590.502-2024 Laser display devices Part 5-2.Optical measurement method of speckle contrast (IEC 62906-5-2.2016, IDT)
CIES014-1 Colorimetry - Part 1.CIE Standard Color Observer
3 Terms, definitions and abbreviations
3.1 Terms and Definitions
For the purposes of this document, the terms and definitions defined in IEC 60050-845, IEC 62906-1-2 and CIES014-1 and the following apply.
The terminology databases used for standardization maintained by ISO and IEC are located at.
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