GB/T 7962.5-2010Test methods of colourless optical glass - Part 5: Stress birefringence (English PDF)
无色光学玻璃测试方法 第5部分：应力双折射
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
January 14, 2011
Implementation date
May 1, 2011
Scope
GB/T 7962.5-2010 is the English-translated version of 无色光学玻璃测试方法 第5部分：应力双折射.
GB/T 7962.5-2010 is the Chinese standard "Test methods of colourless optical glass - Part 5: Stress birefringence". Its scope clause reads: This part of GB/T 7962 specifies the test method, test steps and data processing for the stress birefringence of colourless optical glass.
This part is applicable to testing the stress birefringence of colourless optical glass. Its clauses include terms and definitions.
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Document preview — GB/T 7962.5-2010
National Standard of the People's Republic of China
- ICS
- 81.040.01
- Classification
- N 05
- Replacing
- GB/T 7962.5-1987
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- Foreword i
- 1 Scope
- 2 Normative references
- 3 Terms and definitions
- 4 Principle
- 5 Apparatus
- 6 Sample
- 7 Test
- 8 Data processing
1 Scope
This part of GB/T 7962 specifies the test method, test steps and data processing for the stress birefringence of colourless optical glass.
This part is applicable to testing the stress birefringence of colourless optical glass.
2 Normative references
The following documents contain provisions which, through reference in this part of GB/T 7962, constitute provisions of this part. For dated references, subsequent amendments to (excluding correction to), or revisions of, any of these publications do not apply. However, parties to agreements based on this part are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest editions apply to this part.
GB/T 903 Colourless optical glass
3 Terms and definitions
For the purposes of this part, the following terms and definitions apply.
3.1 stress birefringence
optical glass is an isotropous substance; it will show optical anisotropy under stress, and a beam of polarized light in vertical incidence will be decomposed into two polarized light beams with mutually perpendicular vibration directions and different propagation velocities along the two principal stress directions in the glass, and such birefringence caused by stress is called stress birefringence
3.2 optical path difference
delta polarized light will produce birefringence when passing through the glass under stress, optical path difference is generated due to different optical paths of two polarized light beams when passing through the glass caused by different propagation velocities […]
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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
Referenced standards
Similar standards
Editions of GB/T 7962.5
| Edition | Title | Revision | Status |
|---|---|---|---|
| GB/T 7962.5-2010 | Test methods of colourless optical glass - Part 5: Stress birefringence | current edition | Current |
| GB/T 7962.5-1987 | Test methods of colourless optical glass - Part 5: Stress birefringence | previous edition | Superseded |
This page sells the current edition, GB/T 7962.5-2010. Earlier editions are listed for reference only.
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Related Standards
GB/T 7962.1-2010 — Test methods of colourless optical glass - Part 1: Refractive index and coefficient of dispersion
GB/T 7962.10-2010 — Test methods of colourless optical glass - Part 10: X-rays stability
GB/T 7962.11-2010 — Test method for colourless optical glass - Part 11: Precise test method for refractive index in the visible wave band
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