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Optics crystal - Ultraviolet grade calcium fluoride crystal
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Basic data | Standard ID | GB/T 44567-2024 (GB/T44567-2024) | | Description (Translated English) | Optics crystal - Ultraviolet grade calcium fluoride crystal | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | L90 | | Classification of International Standard | 31.260 | | Word Count Estimation | 14,128 | | Date of Issue | 2024-09-29 | | Date of Implementation | 2025-04-01 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 44567-2024: Optics crystal - Ultraviolet grade calcium fluoride crystal
---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 31.260
CCSL90
National Standard of the People's Republic of China
Optical Crystal UV Grade Calcium Fluoride Crystal
Released on 2024-09-29
2025-04-01 Implementation
State Administration for Market Regulation
The National Standardization Administration issued
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 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 was prepared by the National Technical Committee on Optics and Photonics Standardization (SAC/TC103) and the National Technical Committee on Intraocular Lenses Standardization
(SAC/TC461) jointly managed.
This document was drafted by. Shanghai Institute of Silicates, Chinese Academy of Sciences, Shanghai Desi Kaifu Optoelectronics Technology Co., Ltd., Beijing Glass Research Institute
Institute Co., Ltd., Shanghai Microelectronics Equipment (Group) Co., Ltd., Shanghai Leiwang Optical Technology Co., Ltd., Beijing Sinoma Artificial Crystal Research Institute
Research Institute Co., Ltd., China Ordnance Industry Standardization Institute, and Fujian Jingxiang Optoelectronics Technology Co., Ltd.
The main drafters of this document are. Su Liangbi, Zhang Bo, Liu Rongrong, Wu Qinghui, Tang Fei, Zhang Zhonghan, Jiang Dapeng, Wang Jingya, Kou Huamin, Qian Xiaobo,
Jia Jian, Liu Shan, Hou Baolu, Li Yunfeng, Zeng Aijun, Chen Jianrong, Meng Fanping, Lai Jinfeng.
Optical Crystal UV Grade Calcium Fluoride Crystal
1 Scope
This document specifies the technical requirements, inspection rules, marking, packaging, transportation, storage and accompanying documents of UV grade calcium fluoride crystals.
Corresponding test methods.
This document applies to the production and inspection of UV grade calcium fluoride crystals.
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 7962.1 Test methods for colorless optical glass Part 1.Refractive index and dispersion coefficient
GB/T 7962.2 Test methods for colorless optical glass Part 2.Optical homogeneity Fizeau plane interferometry
GB/T 7962.5 Test methods for colorless optical glass Part 5.Stress birefringence
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 16534 Test method for room temperature hardness of fine ceramics
GB/T 22588 Flash method for measuring thermal diffusivity or thermal conductivity
3 Terms and definitions
The following terms and definitions apply to this document.
3.1
The applied wavelength is 190nm~400nm calcium fluoride crystal.
3.2
Optical homogeneity
The degree of consistency of the refractive index at each point inside the crystal in the same direction.
3.3
The derivative of a medium's refractive index as a function of wavelength.
3.4
Stress birefringence
Birefringence is caused by stress within the crystal.
3.5
Stripes
Ice crack-like stripe defects inside calcium fluoride crystal.
...
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