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GB/T 10810.1-2025: Uncut finished spectacle lenses - Part 1: Single-vision and multifocal Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedure Status: Valid GB/T 10810.1: Historical versions
Similar standardsGB/T 10810.1-2025: Uncut finished spectacle lenses - Part 1: Single-vision and multifocal---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT10810.1-2025GB NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 11.040.70 CCS Y 89 Replacing GB 10810.1-2005 Uncut finished spectacle lenses - Part 1.Single-vision and multifocal (ISO 8980-1.2017, Ophthalmic optics -- Uncut finished spectacle lenses -- Part 1.Specifications for single-vision and multi focal lenses, MOD) Issued on: FEBRUARY 28, 2025 Implemented on: MARCH 01, 2026 Issued by. State Administration for Market Regulation; Standardization Administration of the People's Republic of China. Table of ContentsForeword... 3 Introduction... 6 1 Scope... 7 2 Normative references... 7 3 Terms and definitions... 7 4 Requirements... 8 4.1 Optical performance... 8 4.2 Geometric dimensions... 8 4.3 Material and surface quality... 9 5 Test methods... 9 5.1 Test conditions... 9 5.2 Optical performance... 10 5.3 Geometric dimensions... 10 5.4 Material and surface quality... 10 6 Permanent marking of fixed focus lenses... 11 7 Marks... 11 Annex A (informative) Comparison on structural numbering between this document and ISO 8980-1.2017... 13ForewordThis document was drafted in accordance with the rules given in GB/T 1.1-2020 "Directives for standardization - Part 1.Rules for the structure and drafting of standardizing documents". This document is Part 1 of GB/T 10810 "Uncut finished spectacle lenses". GB/T 10810 has already released the following parts. - Part 1.Single-vision and multifocal; - Part 2.Power-variation; - Part 3.Transmittance test methods; - Part 4.Anti-reflective coatings test methods; - Part 5.Abrasion-resistant of surfaces test methods. This document replaces GB 10810.1-2005 "Uncut finished spectacle lenses - Part 1. Single-vision and multifocal". Compared with GB 10810.1-2005, in addition to structural adjustments and editorial changes, the main technical changes are as follows. a) Changed the content of terms and definitions (see 3.1 of this Edition; 3.1~3.22 of Edition 2005); b) Added a description of the correction value for the vertex power of the wearing position (see 4.1.1 of this Edition); c) Changed the requirements and test methods for prism power of lenses (see 4.1.4, 5.2.3 of this Edition; 5.1.4, 6.3 of Edition 2005); d) Added measurement methods for lens size and thickness (see 5.3 of this Edition); e) Added provisions for permanent marking of fixed focus lenses (see Chapter 6 of this Edition). The modification of this document uses ISO 8980-1.2017 "Ophthalmic optics -- Uncut finished spectacle lenses -- Part 1.Specifications for single-vision and multi focal lenses". Compared to ISO 8980-1.2017, this document has undergone significant structural adjustments. The comparison on structural numbering changes between two documents can be found in Annex A. The technical differences and reasons between this document and ISO 8980-1.2017 are as follows. - Replaced ISO 13666 with the normative reference GB/T 26397.Added terms and definitions for verifying vertex power (see Chapter 3) to adapt to China's technical conditions and increase operability; - Replaced ISO 7944, ISO 8429, ISO 8598-1, ISO 8980-3, ISO 14889, and ISO 21987 (see 4.1.1~4.1.5, 5.2.1~5.2.4) with the normative reference GB 45184 to adapt to the Chinese standard system; - Deleted normative reference documents ISO 7944, ISO 8598-1, ISO 8429, ISO 8980-3, ISO 14889, ISO 21987 (see Chapter 3, 5.2.1, 5.2.3, 5.4, Chapter 8 of ISO 8980-1.2017) to adapt to the Chinese standard system; - Deleted the classification, axial deviation of polarizing lenses, identification requirements for single lens polarizing lenses, and references to this standard (see Chapters 4, 5.4, 7.2, and 9 of ISO 8980-1.2017) to adapt to the standard system of GB/T 10810; - Changed prism degree and prism degree substrate orientation (see 4.1.4, 5.2.5 and 5.2.6 of ISO 8980-1.2017) to adapt to the standard system of GB/T 10810; - Added prism base orientation (see 5.2.3) to adapt to China's technical conditions and increase operability; - Added geometric dimension testing methods (see 5.3) to adapt to China's technical conditions and increase operability; - Changed the requirements for single lens identification (see Chapter 7; Chapter 8 of ISO 8980-1.2017) to adapt to China's technical conditions and increase operability. This document has undergone the following editorial changes. - To coordinate with the existing standards in China, the standard name is changed to "Uncut finished spectacle lenses -- Part 1.Single-vision and multifocal". Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. The issuing authority shall not be held responsible for identifying any or all such patent rights. This document was proposed by China National Light Industry Council. This document shall be under the jurisdiction of National Technical Committee on Visual Acuity of Standardization Administration of China (SAC/TC 596). The drafting organizations of this document. Zhejiang Weixing Optics Co., Ltd., Donghua University, Zhejiang Institute of Metrology Science, Wenzhou Ouhai District Quality and Technical Supervision and Testing Institute, Haoya (Shanghai) Optics Co., Ltd., Jiangsu Kangnaite Optics Co., Ltd., Jiangsu Wanxin Optics Co., Ltd., Yingchang Uncut finished spectacle lenses -- Part 1.Single-vision and multifocal1 ScopeThis document specifies the requirements, markings, and markings for single-vision and multifocal lenses. It describes the corresponding test methods. This document applies to single-vision and multifocal eyeglass lenses with uncut (ground) edges.2 Normative referencesThe following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. GB/T 26397, Ophthalmic optics -- Terminology (GB/T 26397-2011, ISO 13666.1998, MOD) GB 45184, Optometry products -- Safety technical specifications of components3 Terms and definitionsFor the purposes of this document, the terms and definitions defined in GB/T 26397 and GB 45184 as well as the followings apply. 3.1 verification power The top focal power of the lens calculated and provided by the producer as a reference value for verification using a refractometer. NOTE 1.This value is the measured vertex power value provided by the producer. NOTE 2.The verification power may not necessarily be the same as the power of the order. For example, due to (visual) physiological effects, the light passing through the lens during measurement on the focus meter may not be consistent with the wearing position. NOTE 3.If the producer who has not cut (ground) the edges or assembled the lenses only describes one power, that power is the order power used for verification. 5.2 Optical performance 5.2.1 Vertex power Follow the method described in GB 45184. 5.2.2 Column mirror axis direction Measure according to the method described in GB 45184. 5.2.3 Prism degree and prism degree base orientation Measure according to the method described in GB 45184. 5.2.4 Change in vertex power of multifocal lenses The change in vertex power of multifocal lenses is measured according to the method described in GB 45184. Unless otherwise declared by the producer, surfaces containing sub lenses should be selected for measurement. 5.3 Geometric dimensions 5.3.1 Lens sizes Use measuring instruments with a minimum division value not exceeding 0.1 mm for measurement. 5.3.2 Thickness Use measuring instruments with a minimum division value not exceeding 0.05 mm to measure at the reference point on the front surface of the lens, perpendicular to that surface. NOTE. Single focus is the design reference point. Multi focus is the reference point for long-range use. 5.3.3 Sub lens dimensions of multifocal lenses Measure on the tangent plane passing through the center of the sub lens using a projector (optical comparator with ruler) or a measuring instrument with a minimum division value not exceeding 0.1 mm. 5.4 Material and surface quality Without the use of optical amplification devices, tests are conducted using the device ......Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al. 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