QB/T 2506-2017Uncut Finished Spectacles Lenses - Optical Hard Resin Lenses (English PDF)
眼镜镜片 光学树脂镜片
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Issued by
Ministry of Industry and Information Technology of PRC
Level / Type
National · Recommended
Issue date
January 9, 2017
Implementation date
July 1, 2017
Scope
QB/T 2506-2017 is the English-translated version of 眼镜镜片 光学树脂镜片.
QB/T 2506-2017 — This Standard specifies the terms and definitions, classification, requirements, test methods, inspection rules, marking, package, transportation, storage of optical hard resin lenses.
This Standard is applicable to the spectacles lenses made of polymer materials with optical property.
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Document preview — QB/T 2506-2017
National Standard of the People's Republic of China
- ICS
- 11.040.70
Issued by: Ministry of Industry and Information Technology of PRC
Contents
- Foreword...3
- 1 Scope...4
- 2 Normative References...4
- 3 Terms and Definitions...5
- 4 Classification...7
- 5 Requirements...7
- 6 Test Methods...11
- 7 Inspection Rules...14
- 8 Marking and Package...15
- 9 Transportation and Storage...17
Foreword
This Standard was drafted as per the rules specified in GB/T 1.1-2009.
This Standard replaced QB 2506-2001 Optics Resin Spectacles Lenses.
Compared with QB 2506-2001, besides the editorial modifications, this Standard has
the major technical changes as follows.
--- Increase the material properties of photochromic spectacles lenses and
progressive power spectacles lenses;
--- Add lens transmittance and classification, lens blue light transmittance, lens
infrared transmittance;
--- Add the lens light-resistant irradiation performance;
--- Adjust the lens tolerance of refractive index into ±0.005;
--- Adjust the lens abbe number tolerance into ±5%.
This Standard was proposed by China Light Industry Council.
This Standard shall be under the jurisdiction of National Center for Standardization of
Glasses.
Drifting organizations of this Standard. Carl Zeiss Optical (Guangzhou) Co., Ltd.,
Donghua University, China National Inspection & Testing Center for Ophthalmic Optics
Glass and Enamel Products, Shanghai Yishilu Optical Co., Ltd., Shanghai Conant
Optics Co., Ltd., Bizhen Optical (Shanghai) Co., Ltd., Jiangsu Wanxin Optical Co., Ltd.,
Shanghai Leez Optical Glasses Co., Ltd., Shanghai Mingyue Optics Glasses Co., Ltd.,
Rodenstock Trading (Shanghai) Co., Ltd., and Riccino (Xiamen) Optical Inc.
Chief drafting staff of this Standard. Tang Lingling, Nie Xiaoling, Huang Hongliang,
Zhang Peng, Cao Genting, Ouyang Xiaoyong, Tian Ling, Ye Jiayi, Xie Gongxing, Jin
Xiang, Gao Qi, Wu Guoqing, and Zhou Xianjian.
The historical edition replaced by this Standard is as follows.
--- QB 2506-2001.
Uncut Finished Spectacles Lenses -
Optical Hard Resin Lenses
1 Scope
This Standard specifies the terms and definitions, classification, requirements, test
methods, inspection rules, marking, package, transportation, storage of optical hard
resin lenses.
This Standard is applicable to the spectacles lenses made of polymer materials with
optical property.
2 Normative References
The following documents are essential to the application of this document. For the
dated documents, only the versions with the dates indicated are applicable to this
document; for the undated documents, only the latest version (including all the
amendments) are applicable to this document.
GB/T 2828.1 Sampling Procedures for Inspection by Attribute - Part1.Sampling
Schemes Indexed by Acceptance Quality Limit(AQL) for Lot-by-Lot Inspection
GB/T 8427 Textiles - Tests for Color Fastness - Color Fastness to Artificial Light.
Xenon Arc Fading Lamp Test
GB 10810.1 Uncut Finished Spectacle Lenses - Part 1.Single-Vision and
Multifocal Lenses
GB 10810.2 Uncut Finished Spectacle Lenses - Part 2.Progressive Power
Spectacle Lenses
3 Terms and Definitions
The following terms and definitions and those ones stipulated in GB 10810.1, GB
10810.2, GB 10810.3, GB 10810.4, GB 10810.5, and GB/T 26397 are applicable to
this document.
3.1 Blue light transmittance tausb
The approximate weighted average of the spectral transmittance in the wavelength
range of 380nm~500nm tausb is calculated by Formula (1).
3.3 Solar IR-A transmittance tauSIRA
The approximate weighted average of spectral transmittance in the wavelength range
of 780nm~1400nm tauSIRA is calculated by Formula (2).
4 Classification
4.1 It can be divided into the following ones according to the lens types.
4.2 It can be divided into the following ones according to the refractive index.
5 Requirements
5.1 Basic performance
5.1.1 The vertex power, cylinder axis direction of single vision lens and multifocal
lens, and additional vertex power, optical center, prism degree, substrate orientation of
prism degree, material, surface quality and geometric dimension of multifocal lens shall
conform to the provisions of relevant clauses in GB 10810.1.
5.2 Anti-reflective film properties
The anti-reflective film properties of lens shall meet the requirements of GB 10810.4.
5.3 Surface wear-resistance
The surface wear-resistance of the lens shall meet the requirements of GB 10810.5.
5.4 Transmittance property
5.4.1 Transmittance and classification
5.4.2 Functional lens transmittance
5.5 Refractive index
The tolerance between the measured value and nominal value shall be ±0.005.
5.6 Abbe number (dispersion coefficient)
The tolerance between the measured value and nominal value shall be ±5%.
5.7 Light irradiation proof
After through the test in 6.7, the lens shall satisfy.
5.8 Flame retardancy
After the test in 6.8, the lens shall not continue to burn.
5.9 Impact resistance
If the lens claims with safety protection property, after though the test in 6.9, the lens
shall not appear any of the following circumstances.
6 Test Methods
6.1 Test conditions
Unless otherwise is specified, the test in this Standard shall be performed in the indoor
environment with temperature at (23±5) °C, relative humidity of 30%~80%.
The optical parameters of various lenses shall be measured at the design reference
point of the lenses.
6.2 Basic property
6.3 Anti-reflective film property
The anti-reflective film property of lenses shall be inspected as per the provisions of
GB 10810.4.
6.4 Surface wear resistance
The surface wear resistance of lenses shall be inspected as per the provisions of GB
10810.5.
6.5 Transmittance property
The transmittance property of lenses shall be inspected as per the provisions of GB
10810.3.
6.6 Refractive index, Abbe number (dispersion coefficient)
6.6.1 Device
The V prism refractor with measurement accuracy no less than 5×10-5, the measuring
device that is equivalent to the method described in this section can also be used.
6.7 Light radiation proof
6.7.1 Device
6.7.1.1 Xenon lamp irradiating device
The new xenon lamp shall be lit at least 150h before the test; the following devices
shall be used.
6.7.1.2 Standard blue irradiation exposure medium
It shall conform to the provisions of GB/T 8427.
6.7.1.3 UV-B filter
It can prevent the light with wavelength less than 270nm to penetrate.
6.9 Impact resistance
6.9.1 Device
6.9.1.1 Steel ball
Its diameter is 16mm, the mass is (16.0±0.1) g.
6.9.1.2 lens holder
The main body of the holder is tubular column with inner diameter of 25mm, outer
diameter of 32mm; a rubber gasket with cross-section of 3mm × 3mm is padded on
the top end (in between the concave surface of the lens) of the tubular column; the
total mass of entire lens holder and its integrated base is greater than 12.25kg.
7 Inspection Rules
7.1 After inspection, if the same specification of products that are delivered by same-
batch is qualified, then these products shall be regarded as the same specification and
the same batch of products according to the measurement parameters and
classification of this Standard.
7.4 For the S/N 2 item to S/N 9 item in table 2, each batch of products shall take 1
piece of sample to inspect.
7.5 If any of the item in Table 2 is disqualified, then such batch of products shall be
regarded as disqualified batch.
7.6 If there are any special requirements from supplier and purchaser, it shall be
negotiated between both parties in the way of agreement.
Table 2
8 Marking and Package
8.1 The lens package and attached documents shall at least mark the
parameters
The lens package and attached documents shall at least mark.
8.2 Multifocal lens shall attach the following parameters
The multifocal lens shall be attached as follows.
8.3 Progressive power lens shall attach the following parameters
8.3.1 Permanent marks
The lens shall have at least the following permanent marks.
8.3.2 Non-permanent selective marks
The lens shall also be selectively marked as follows.
8.3.3 Parameter that shall be indicated on the lens package or attached
documents
9 Transportation and Storage
9.1 During the transporting period, the products shall be handled gently.
9.2 The storage place shall be dry and ventilated.
QB/T 2506-2017
QB
NATIONAL LIGHT INDUSTRY STANDARD
ICS 11.040.70
Classification No.. Y 89
Record No.. 57027-2017
Replacing QB 2506-2001
Uncut Finished Spectacles Lenses –
Optical Hard Resin Lenses
Issued on. JANUARY 09, 2017
Implemented on. JULY 01, 2017
Issued by. Ministry of Industry and Information Technology of PRC
Table of Contents
Foreword... 3
1 Scope... 4
2 Normative References... 4
3 Terms and Definitions... 5
4 Classification... 7
5 Requirements... 7
6 Test Methods... 11
7 Inspection Rules... 14
8 Marking and Package... 15
9 Transportation and Storage... 17
Appendix A (Normative) UV Transmittance and Blue Light Transmittance
Calculated Spectral Function... 18
Appendix B (Normative) Spectral Distribution of Spectral Radiation in the
Infrared Band... 20
Appendix C (Normative) Spectral Luminous Efficacy Function in Visible Light
Band... 22
Foreword
This Standard was drafted as per the rules specified in GB/T 1.1-2009.
This Standard replaced QB 2506-2001 Optics Resin Spectacles Lenses.
Compared with QB 2506-2001, besides the editorial modifications, this Standard has
the major technical changes as follows.
--- Increase the material properties of photochromic spectacles lenses and
progressive power spectacles lenses;
--- Add lens transmittance and classification, lens blue light transmittance, lens
infrared transmittance;
--- Add the lens light-resistant irradiation performance;
--- Adjust the lens tolerance of refractive index into ±0.005;
--- Adjust the lens abbe number tolerance into ±5%.
This Standard was proposed by China Light Industry Council.
This Standard shall be under the jurisdiction of National Center for Standardization of
Glasses.
Drifting organizations of this Standard. Carl Zeiss Optical (Guangzhou) Co., Ltd.,
Donghua University, China National Inspection & Testing Center for Ophthalmic Optics
Glass and Enamel Products, Shanghai Yishilu Optical Co., Ltd., Shanghai Conant
Optics Co., Ltd., Bizhen Optical (Shanghai) Co., Ltd., Jiangsu Wanxin Optical Co., Ltd.,
Shanghai Leez Optical Glasses Co., Ltd., Shanghai Mingyue Optics Glasses Co., Ltd.,
Rodenstock Trading (Shanghai) Co., Ltd., and Riccino (Xiamen) Optical Inc.
Chief drafting staff of this Standard. Tang Lingling, Nie Xiaoling, Huang Hongliang,
Zhang Peng, Cao Genting, Ouyang Xiaoyong, Tian Ling, Ye Jiayi, Xie Gongxing, Jin
Xiang, Gao Qi, Wu Guoqing, and Zhou Xianjian.
The historical edition replaced by this Standard is as follows.
--- QB 2506-2001.
Uncut Finished Spectacles Lenses -
Optical Hard Resin Lenses
1 Scope
This Standard specifies the terms and definitions, classification, requirements, test
methods, inspection rules, marking, package, transportation, storage of optical hard
resin lenses.
This Standard is applicable to the spectacles lenses made of polymer materials with
optical property.
2 Normative References
The following documents are essential to the application of this document. For the
dated documents, only the versions with the dates indicated are applicable to this
document; for the undated documents, only the latest version (including all the
amendments) are applicable to this document.
GB/T 2828.1 Sampling Procedures for Inspection by Attribute - Part1.Sampling
Schemes Indexed by Acceptance Quality Limit(AQL) for Lot-by-Lot Inspection
GB/T 8427 Textiles - Tests for Color Fastness - Color Fastness to Artificial Light.
Xenon Arc Fading Lamp Test
GB 10810.1 Uncut Finished Spectacle Lenses - Part 1.Single-Vision and
Multifocal Lenses
GB 10810.2 Uncut Finished Spectacle Lenses - Part 2.Progressive Power
Spectacle Lenses
3 Terms and Definitions
The following terms and definitions and those ones stipulated in GB 10810.1, GB
10810.2, GB 10810.3, GB 10810.4, GB 10810.5, and GB/T 26397 are applicable to
this document.
3.1 Blue light transmittance tausb
The approximate weighted average of the spectral transmittance in the wavelength
range of 380nm~500nm tausb is calculated by Formula (1).
3.3 Solar IR-A transmittance tauSIRA
The approximate weighted average of spectral transmittance in the wavelength range
of 780nm~1400nm tauSIRA is calculated by Formula (2).
4 Classification
4.1 It can be divided into the following ones according to the lens types.
4.2 It can be divided into the following ones according to the refractive index.
5 Requirements
5.1 Basic performance
5.1.1 The vertex power, cylinder axis direction of single vision lens and multifocal
lens, and additional vertex power, optical center, prism degree, substrate orientation of
prism degree, material, surface quality and geometric dimension of multifocal lens shall
conform to the provisions of relevant clauses in GB 10810.1.
5.2 Anti-reflective film properties
The anti-reflective film properties of lens shall meet the requirements of GB 10810.4.
5.3 Surface wear-resistance
The surface wear-resistance of the lens shall meet the requirements of GB 10810.5.
5.4 Transmittance property
5.4.1 Transmittance and classification
5.4.2 Functional lens transmittance
5.5 Refractive index
The tolerance between the measured value and nominal value shall be ±0.005.
5.6 Abbe number (dispersion coefficient)
The tolerance between the measured value and nominal value shall be ±5%.
5.7 Light irradiation proof
After through the test in 6.7, the lens shall satisfy.
5.8 Flame retardancy
After the test in 6.8, the lens shall not continue to burn.
5.9 Impact resistance
If the lens claims with safety protection property, after though the test in 6.9, the lens
shall not appear any of the following circumstances.
6 Test Methods
6.1 Test conditions
Unless otherwise is specified, the test in this Standard shall be performed in the indoor
environment with temperature at (23±5) °C, relative humidity of 30%~80%.
The optical parameters of various lenses shall be measured at the design reference
point of the lenses.
6.2 Basic property
6.3 Anti-reflective film property
The anti-reflective film property of lenses shall be inspected as per the provisions of
GB 10810.4.
6.4 Surface wear resistance
The surface wear resistance of lenses shall be inspected as per the provisions of GB
10810.5.
6.5 Transmittance property
The transmittance property of lenses shall be inspected as per the provisions of GB
10810.3.
6.6 Refractive index, Abbe number (dispersion coefficient)
6.6.1 Device
The V prism refractor with measurement accuracy no less than 5×10-5, the measuring
device that is equivalent to the method described in this section can also be used.
6.7 Light radiation proof
6.7.1 Device
6.7.1.1 Xenon lamp irradiating device
The new xenon lamp shall be lit at least 150h before the test; the following devices
shall be used.
6.7.1.2 Standard blue irradiation exposure medium
It shall conform to the provisions of GB/T 8427.
6.7.1.3 UV-B filter
It can prevent the light with wavelength less than 270nm to penetrate.
6.9 Impact resistance
6.9.1 Device
6.9.1.1 Steel ball
Its diameter is 16mm, the mass is (16.0±0.1) g.
6.9.1.2 lens holder
The main body of the holder is tubular column with inner diameter of 25mm, outer
diameter of 32mm; a rubber gasket with cross-section of 3mm × 3mm is padded on
the top end (in between the concave surface of the lens) of the tubular column; the
total mass of entire lens holder and its integrated base is greater than 12.25kg.
7 Inspection Rules
7.1 After inspection, if the same specification of products that are delivered by same-
batch is qualified, then these products shall be regarded as the same specification and
the same batch of products according to the measurement parameters and
classification of this Standard.
7.4 For the S/N 2 item to S/N 9 item in table 2, each batch of products shall take 1
piece of sample to inspect.
7.5 If any of the item in Table 2 is disqualified, then such batch of products shall be
regarded as disqualified batch.
7.6 If there are any special requirements from supplier and purchaser, it shall be
negotiated between both parties in the way of agreement.
Table 2
8 Marking and Package
8.1 The lens package and attached documents shall at least mark the
parameters
The lens package and attached documents shall at least mark.
8.2 Multifocal lens shall attach the following parameters
The multifocal lens shall be attached as follows.
8.3 Progressive power lens shall attach the following parameters
8.3.1 Permanent marks
The lens shall have at least the following permanent marks.
8.3.2 Non-permanent selective marks
The lens shall also be selectively marked as follows.
8.3.3 Parameter that shall be indicated on the lens package or attached
documents
9 Transportation and Storage
9.1 During the transporting period, the products shall be handled gently.
9.2 The storage place shall be dry and ventilated.
......
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 17 pages — is available in the English PDF.
Referenced standards
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Related Standards
GB/T 2828.1-2012 — Sampling procedures for inspection by attributes - Part 1: Sampling schemes indexed by acceptance quality limit (AQL) for lot-by-lot inspection
GB/T 2828.10-2010 — Sampling procedures for inspection by attributes -- Part 10: Introduction to the GB/T 2828 series of standards for sampling for inspection by attributes
GB/T 2828.11-2008 — Sampling procedures for inspection by attributes Part 11: Procedures for assessment of declared quality levels for small population
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