GB/T 32561.5-2022 English PDF

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GB/T 32561.5-2022: Measuring methods for chalcogenide infrared optical glass - Part 5: Stress birefringence
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Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 32561.5-2022	269	Add to Cart	3 days	Measuring methods for chalcogenide infrared optical glass - Part 5: Stress birefringence	Valid

Similar standards

GB/T 36403   GB/T 36265   GB/T 33831   GB/T 32561.4   GB/T 32561.2   GB/T 32561.3   

Basic data

Standard ID: GB/T 32561.5-2022 (GB/T32561.5-2022)
Description (Translated English): Measuring methods for chalcogenide infrared optical glass - Part 5: Stress birefringence
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: Q37
Classification of International Standard: 81.040.10
Word Count Estimation: 14,186
Date of Issue: 2022-10-14
Date of Implementation: 2023-05-01
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 32561.5-2022: Measuring methods for chalcogenide infrared optical glass - Part 5: Stress birefringence

---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.
Measuring methods for chalcogenide infrared optical glass -- Part 5.Stress birefringence ICS 81.040.10 CCSQ37 National Standards of People's Republic of China Infrared Optical Chalcogenide Glass Test Method Part 5.Stress Birefringence Part 5.Stressbirefringence 2023-05-01 Implementation State Administration for Market Regulation Released by the National Standardization Administration

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 of Standardization Documents" drafted. This document is part 5 of GB/T 32561 "Infrared Optical Chalcogenide Glass Test Methods". GB/T 32561 has issued the following part. --- Part 1.Uniformity; --- Part 2.Stripe degree; --- Part 3.Impurities; --- Part 4.Optical absorption coefficient; --- Part 5.Stress birefringence. Please note that some content of this document may be patented. The issuing agency of this document assumes no responsibility for identifying patents. This document is proposed by China Machinery Industry Federation. This document is under the jurisdiction of the National Optical and Photonics Standardization Technical Committee (SAC/TC103). This document is drafted by. Ningbo University, Ningbo Sunshine Hepu Optoelectronics Technology Co., Ltd., Chengdu Guangming Optoelectronics Co., Ltd., Hubei New Huaguang Information Materials Co., Ltd., China Building Materials Science Research Institute Co., Ltd., Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Xi'an Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, China Ordnance Industry Standardization Institute, Youyan Guojinghui New Materials Co., Ltd., Jiangsu Iron Anchor Glass Co., Ltd. The main drafters of this document. Dai Shixun, Zhang Peiqing, Shen Xiang, Song Baoan, Lin Shishu, Wang Xunsi, Yu Tianlai, Hu Xiangping, Zu Chengkui, Zhang Long, Guo Haitao, Du Mengying, Zhu Yi, Shi Hongchun, Jiang Shoujin.

Introduction

Infrared optical chalcogenide glass has a wide range of applications in thermal imaging, infrared sensing, nonlinear devices, phase change storage, photovoltaics and other fields. its products During production, sale and use, it is necessary to obtain its performance parameters with standardized measurement methods. Unify the measurement methods of various optical and electrical parameters, Establish the best order for the production, sales, and use of infrared optical chalcogenide glass to ensure the comparability and reproducibility of test results, so as to promote relevant co-benefits of the parties. GB/T 32561 "Infrared Optical Chalcogenide Glass Test Method" describes the performance parameters of infrared optical chalcogenide glass The measurement method is intended to consist of 5 parts. --- Part 1.Uniformity. The purpose is to specify a test method for the internal uniformity of infrared optical chalcogenide glasses. --- Part 2.Stripe degree. The purpose is to specify a test method for the degree of internal striation of infrared optical chalcogenide glasses. --- Part 3.Impurities. The purpose is to specify a test method for internal impurities in infrared optical chalcogenide glasses. --- Part 4.Optical absorption coefficient. The purpose is to specify a test method for the optical absorption coefficient of infrared optical chalcogenide glasses. --- Part 5.Stress birefringence. The purpose is to specify a test method for the stress birefringence of infrared optical chalcogenide glasses. The five parts of the GB/T 32561 series of standards correspond to the five important performance parameters of infrared optical chalcogenide glass during use. Number test method. This document is part 5 of GB/T 32561, which is aimed at the test method for stress birefringence of infrared chalcogenide glasses. Stress birefringence is used to characterize the refractive index change of light waves with different polarization directions when there is stress inside the chalcogenide glass. The key technical indicators that glass manufacturers must provide when producing and selling products. This document is in the first 4 sections (Uniformity, Streaks, Miscellaneous Quantitative testing and characterization of the internal stress of chalcogenide glass products on the basis of quality, light absorption coefficient, etc., to guide research Inspection and acceptance of chalcogenide glass products by the manufacturing, production and use departments to promote the stability and consistency of product quality. Infrared Optical Chalcogenide Glass Test Method Part 5.Stress Birefringence

1 Scope

This document describes the test principle, test conditions, instruments, samples, test procedures and measurement of stress birefringence of infrared optical chalcogenide glasses. Test methods such as data processing. This document applies to the testing of stress birefringence of infrared optical chalcogenide glasses. Note. Other infrared optical glasses can be used for reference.

2 Normative references

The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, dated citations documents, only the version corresponding to that date applies to this document; for undated references, the latest edition (including all amendments) applies to this document. GB/T 36265-2018 Infrared Optical Glass

3 Terms and Definitions

The following terms and definitions apply to this document. 3.1 stress birefringence stressbirefringence Due to the existence of stress in the glass, when a beam of polarized light is incident perpendicular to the glass surface, the vibrational vibrations decomposed along the two principal stress directions in the glass Two beams of polarized light whose moving directions are perpendicular to each other will have different propagation velocities, that is, have different refractive indices. [Source. GB/T 7962.5-2010, 3.1, with modifications] Note. Infrared optical chalcogenide glass is an isotropic material. If there is stress in the glass, optical anisotropy will appear. 3.2 When polarized light passes through a stressed glass, birefringence occurs, and the polarized light decomposed along the two principal stress directions in the glass propagates in the glass. Due to the different broadcasting speeds, the optical paths of the two polarized lights after passing through the glass are not equal, and the difference between the optical paths between the two polarized lights. [Source. GB/T 7962.5-2010, 3.2, with modifications] Note. The optical path difference in this document refers specifically to the optical path difference between two beams of light caused by stress birefringence. 3.3 It is formed by combining the three elements S, Se, Te of group VIA in the periodic table with other metal elements such as Ge, Ga, As, Sb, etc. an infrared glass. Note. The infrared transmission range can exceed 20 μm.

4 Principles

The stress existing in the infrared optical chalcogenide glass will lead to optical anisotropy, which is measured by the quarter-wave plate method, and the polarized light passes through the sample. ......

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