GB/T 38120-2019Technical requirements on application of light health and light safety of coating for protection against blue light (English PDF)
蓝光防护膜的光健康与光安全应用技术要求
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
December 10, 2019
Implementation date
July 1, 2020
Scope
GB/T 38120-2019 is the English-translated version of 蓝光防护膜的光健康与光安全应用技术要求.
GB/T 38120-2019 is the Chinese standard "Technical requirements on application of light health and light safety of coating for protection against blue light".
Its scope clause reads: This standard specifies the classification and requirements of blue light protective films used in optical lens products, display products, lighting products and skin protection products.
Seeking and testing methods. This standard applies to films and materials with blue light protection function used in optical lens products, display products, and lighting products.
Coatings and materials with blue light protection on optical lens products, display products, lighting products, and skin blue light protection Biofilm layers and materials (including dosage forms, raw materials, etc.). Its clauses include terms, definitions and abbreviations.
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Document preview — GB/T 38120-2019
National Standard of the People's Republic of China
- ICS
- 13.340.99
- Classification
- C 71
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- Foreword III
- 1 Scope
- 2 Normative references
- 3 Terms, definitions and abbreviations
- 4 Classification
- 5 Requirement
- 5.1 General requirements
- 5.2 Light safety requirements
- 5.3 Light health requirements
- 6 Test method
- 6.1 Blue light protective film (optical lens, display and lighting products) light safety test method
- 6.2 Blue light protective film (skin protection) light safety test method
- 6.3 Light health test method for blue light film (optical lens, display and lighting products)
- Appendix A (informative) Molecular evaluation method of retinal light-damaged cells 9
- Appendix C (informational appendix) Cell viability test (MTT) method for skin cells
1 Scope
This standard specifies the classification and requirements of blue light protective films used in optical lens products, display products, lighting products and skin protection products.
Seeking and testing methods.
This standard applies to films and materials with blue light protection function used in optical lens products, display products, and lighting products.
Coatings and materials with blue light protection on optical lens products, display products, lighting products, and skin blue light protection
Biofilm layers and materials (including dosage forms, raw materials, etc.).
2 Normative references
The following documents are essential for the application of this document. For dated references, only the dated version applies to this article
Pieces. For undated references, the latest version (including all amendments) applies to this document.
JJG178-2007 UV, visible and near infrared spectrophotometer
ISO 8995-1 Lighting and Workplaces Part 1. Indoors (Lighting of workplaces-Part 1. Indoor)
ITU-RBT.2021-1 Subjective evaluation method of stereo 3D TV system (Subjective methods for the assets stereoscopic3DTVsystems)
3 Terms, definitions and abbreviations
3.1 Terms and definitions
The following terms and definitions apply to this document.
3.1.1 Vision
Subjective images produced by light stimuli acting on the visual organs.
3.1.2 Refractivestatus
The refractive condition of the eye to be examined, that is, the image of the object at infinity on the retina.
Note. The examination of the refractive state of the eye is called an optometry.
3.1.3 Adjustment
Visual adjustment
The phenomenon that the refractive power of the eyes changes when changing the distance and near objects.
3.1.4 Aberration
In actual optical systems, the results obtained by non-paraxial ray tracing are not consistent with the results obtained by paraxial ray tracing, which is inconsistent with Gaussian optics.
(First-order approximation theory or paraxial rays).
......
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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