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GB/T 44450-2024: Optics and photonics - Optical materials and components - Characterization of optical materials used in the infrared spectral range from 0.78 μm to 25 μm
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Optics and photonics - Optical materials and components - Characterization of optical materials used in the infrared spectral range from 0.78 μm to 25 μm
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Basic data
| Standard ID | GB/T 44450-2024 (GB/T44450-2024) |
| Description (Translated English) | Optics and photonics - Optical materials and components - Characterization of optical materials used in the infrared spectral range from 0.78 ��m to 25 ��m |
| Sector / Industry | National Standard (Recommended) |
| Classification of Chinese Standard | N30 |
| Classification of International Standard | 17.180 |
| Word Count Estimation | 22,230 |
| Date of Issue | 2024-09-29 |
| Date of Implementation | 2025-01-01 |
| Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration |
GB/T 44450-2024: Optics and photonics - Optical materials and components - Characterization of optical materials used in the infrared spectral range from 0.78 μm to 25 μm
ICS 17.180
CCSN30
National Standard of the People's Republic of China
Optics and Photonics Optical Materials and Components
Optics for 0.78μm~25μm infrared spectrum
Material properties
from0.78μmto25μm
(ISO 11382.2022,MOD)
Released on 2024-09-29
2025-01-01 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 and Definitions 2
4 Symbols 3
5 Naming 3
6 Optical performance 4
7 Other performance 9
Appendix A (Informative) Comparison table of technical differences between this document and ISO 11382.2022 and their causes 12
Reference 14
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 modified to adopt ISO 11382.2022 "Optics and photonics optical materials and components for infrared spectra in the range of 0.78 μm to 25 μm"
"Properties of Optical Materials".
This document has the following structural adjustments compared to ISO 11382.2022.
---6.2.1.1 and 6.2.1.2 correspond to 6.2.1 and 6.2.2 of ISO 11382.2022 respectively;
---6.4.4 corresponds to 6.4.3 of ISO 11382.2022;
---7.2.1 and 7.2.2 correspond to 7.2 and 7.3 of ISO 11382.2022 respectively;
---7.3 corresponds to 7.4 of ISO 11382.2022;
---7.5 corresponds to 7.5 and 7.6 of ISO 11382.2022.
This document has many technical differences compared to ISO 11382.2022.
A single line (|) is used to indicate these technical differences. A list of these technical differences and their reasons is given in Appendix A.
The following editorial changes were made to this document.
--- The content of "scope" has been re-described (see Chapter 1);
--- In "Terms and Definitions", replace "regular transmittance" with "spectral transmittance" and replace "regular reflectivity" with "reflectivity" (see
Chapter 3);
---Change the symbol of "absorption rate" from α to K in "Symbol" to avoid confusion with the expansion coefficient α; change the change in refractive index dn
to Δn to make it more consistent with the domestic expression; to change the reflectivity ρ to R to avoid confusion with the density ρ; to change the photoelastic coefficient
The symbol of the number K was changed to B to avoid confusion with the absorption rate;
--- Delete the "see 5.2, see 5.3, see 5.4, see 5.5" in brackets (see 5.1);
--- Move the meaning of the letters in formula (1) to formula (3) "δm = Rdm τdm" forward to become formula (4) (see 6.1), and other
The formula number is postponed;
--- Convert "50K or 77K" to "-223.15℃ or -196.15℃" (see 6.2.1.2);
---Transform the formula τi=e-Kd into K=-
lnτi
, and added the index number description (see 6.3.1);
--- Added the reference number description for the refractive index, wavelength λ and extinction coefficient formula (see 6.5.1).
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 China Machinery Industry Federation.
This document is under the jurisdiction of the National Technical Committee for Standardization of Optics and Photonics (SAC/TC103).
This document was drafted by. Hubei Xinhuaguang Information Materials Co., Ltd., China Ordnance Industry Standardization Institute, China Building Materials Science
Research Institute Co., Ltd., Ningbo Sunny Infrared Technology Co., Ltd., Shenyang Instrument Science Research Institute Co., Ltd., Wuxi Liangyuan Laser Technology Co., Ltd.
Co., Ltd., Jiangsu Vision New Materials Co., Ltd., Henan Micron Optical Technology Co., Ltd., Anhui Guangzhi Technology Co., Ltd., Shandong North
Optical Electronics Ltd.
The main drafters of this document are. Li Jianxin, Hu Xiangping, Rong Junhua, Shen Yimei, Rong Xing, Zhao Zhongxun, Tang Bobo, Li Weina, Yang Miling, Zu Chengkui,
Gang Zhou, Yanghui Pan, Peng Gao, Xiaoming Feng, Minghua Wang, Xihe Zhen, Shiping Yin, Xida Xing.
Introduction
Infrared technology has a wide range of applications in automotive night vision, environmental monitoring, high temperature measurement, satellite space detection, medical diagnosis and mineral exploration.
The application of infrared optical materials shows the broad development prospects, and the current application demand is showing a clear growth trend.
Different types of infrared optical materials have different requirements for performance parameters due to their different uses. This document is in ISO 11382.
2022, the performance parameters, test specifications and test methods have been supplemented and improved, and the wording and
Description. The technical contents of this document, such as the performance parameters, terminology, symbol identification, and graphic methods of infrared optical materials, are consistent with ISO standards.
The alignment provides a unified standard for technical communication in the industry and plays a positive role in promoting the orderly development of the industry.
Optics and Photonics Optical Materials and Components
Optics for 0.78μm~25μm infrared spectrum
Material properties
1 Scope
This document specifies the naming, properties and methods of characterizing optical materials used in the infrared spectral range of 0.78μm~25μm.
The performance parameters of the material are given and the corresponding test methods for these performance parameters are described.
This document is applicable to the characterization and testing of infrared materials used in passive optical components. It can also be used in other spectral bands (such as microwaves, visible light)
or UV band) characterization and testing.
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.
GB/T 1409 Measurement of the permittivity and dielectric loss factor of electrical insulating materials at power frequency, audio frequency, and high frequency (including meter wave wavelength)
Recommended method (GB/T 1409-2006, IEC 60250.1969, MOD)
GB/T 7962.6 Test methods for colorless optical glass Part 6.Young's modulus, shear modulus and Poisson's ratio
GB/T 7962.14 Test methods for colorless optical glass Part 14.Acid resistance stability
GB/T 7962.15 Test methods for colorless optical glass Part 15.Moisture resistance stability
GB/T 7962.16 Test methods for colorless optical glass Part 16.Linear expansion coefficient, transition temperature and relaxation temperature
GB/T 7962.20 Test methods for colorless optical glass Part 20.Density
GB/T 7962.21 Test methods for colorless optical glass Part 21.Alkali resistance stability (GB/T 7962.21-2019, ISO 10629.
1996,MOD)
GB/T 7962.22 Test methods for colorless optical glass Part 22.Phosphoric acid resistance (GB/T 7962.22-2019,
ISO 9689.1990, MOD)
GB/T 28195 Test method for softening point of glass (GB/T 28195-2011, ISO 7884-6.1987, MOD)
GB/T 34184 Test method for infrared refractive index of infrared optical glass - Deflection angle method
GB/T 42657 Test method for infrared refractive index temperature coefficient of infrared optical glass - vertical incidence method
ISO 9385.1990 Glass and glass-ceramics-Knoop hardness test
stress-opticalcoefficient-Part 2.Bendingtest)
ISO 12123.2018 Optics and photonics - Specification of optical glass materials
ISO 15368 Optics and photonics - Measurement of reflectance of planes and transmittance of plane-parallel components
ISO 19740.2018 Optics and photonics - Optical materials and components - Test methods for uniformity of infrared optical materials
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