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GB/T 10810.3-2025: Uncut finished spectacle lenses - Part 3: Transmittance test methods 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 10810.3: Historical versions
Similar standardsGB/T 10810.3-2025: Uncut finished spectacle lenses - Part 3: Transmittance test methods---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/GBT10810.3-2025GB NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 11.040.70 CCS Y 89 Replacing GB 10810.3-2006 Uncut finished spectacle lenses - Part 3.Transmittance test methods (ISO 8980-3.2022, Ophthalmic optics -- Uncut finished spectacle lenses -- Part 3. Transmittance specifications and test methods, 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 Symbols... 12 5 Classification... 12 6 Instruments and equipment... 13 6.1 General requirements for measuring devices... 13 6.2 Measuring device for photochromic lenses... 13 6.3 Polarization lens measuring device... 14 6.4 Light-resistant irradiation measurement device... 16 7 Samples... 17 7.1 General requirements... 17 7.2 Special requirements for photochromic lenses... 17 8 Test steps... 17 8.1 General Parameters... 17 8.2 Photochromic lenses... 18 8.3 Polarized lenses... 19 8.4 Light irradiation resistance performance... 20 9 Data processing... 20 9.1 Luminous transmittance... 20 9.2 Solar ultraviolet (UV) transmittance... 21 9.3 Transmittance in the solar ultraviolet A spectrum... 21 9.4 Transmittance in the solar ultraviolet B spectrum... 21 9.5 Traffic signal transmittance ratio... 22 9.6 Solar blue-luminous transmittance... 22 9.7 Solar IR transmittance... 22 10 Test report... 23 Annex A (informative) Comparison on structural numbering between this document and ISO 8980-3.2022... 24 Annex B (normative) Spectral characteristics of ultraviolet filters used for testing their resistance to light irradiation performance... 25 Annex C (normative) Weight function for calculating relative visual attenuation factor (incandescent signal lamp)... 29 Annex D (normative) Calculation of UV transmittance and blue light damage coefficient... 35 Annex E (normative) The power distribution function of solar IR transmittance used to calculate the infrared transmittance of the sun... 37ForewordThis 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 3 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 10810.3-2006 "Spectacle lenses and related eye wear -- Part 3.Transmittance specifications and test methods". Compared with GB 10810.3- 2006, in addition to structural adjustments and editorial changes, the main technical changes are as follows. a) Added the definitions for solar blue-luminous transmittance and solar IR transmittance (see 3.9, 3.10 of this Edition); b) Deleted the definitions for colorless lenses, photochromic lenses, and assembled lenses (see 3.9~3.17 of Edition 2006); c) Deleted the required contents (see Chapter 5 of Edition 2006); d) Added measuring devices and methods for light irradiation resistance performance (see 6.4, 8.4 of this Edition); e) Added measurement methods for solar blue-luminous transmittance and solar IR transmittance (see 8.1 of this Edition); f) Deleted the inspection rules (see Chapter 7 of Edition 2006); g) Added spectral characteristics of ultraviolet filters for testing their resistance to light irradiation (see Annex B of this Edition); h) Added weight data for calculating the solar blue-luminous transmittance and solar IR transmittance (see Annex D and Annex E of this Edition). The modification of this document adopts ISO 8980-3.2022 "Ophthalmic optics -- Uncut finished spectacle lenses -- Part 3.Transmittance specifications and test methods". Compared with ISO 8980-3.2022, this document has more structural adjustments. See Annex A for a list of comparisons of structural numbers between two documents. The technical differences between this document and ISO 8980-3.2022 and their reasons are as follows. a) Deleted the normative references ISO 14889, ISO 11664-1, and ISO 11664-2 (see Chapter 1, 6.1, 7.3.1, 7.6.2.3, Table A.1, Table A.2 of ISO 8980-3.2022) to adapt to the Chinese standard system; b) Replaced ISO 13666 with the normative reference GB/T 26397.Changed the terms and definitions (see Chapter 3) to adapt to China's technical conditions and increased operability; c) Replaced ISO 11664-1 with the normative reference GB/T 3978 (see 3.2, 3.6, 6.3.2) to adapt to China's technical conditions and increased operability; d) Replaced ISO 11664-2 with the normative reference GB/T 20147 (see 6.3.2) to adapt to China's technical conditions and increase operability; e) Deleted the content of the technical requirements (see Chapter 6 of ISO 8980- 3.2022) to adapt to the Chinese standard system. Its content is stipulated in relevant product standards; f) Changed the general requirements for measuring devices. Added the normative reference JJF 1106 (see 6.1; 7.1, 7.2 of ISO 8980-3.2022) to adapt to China's technical conditions and increase operability; g) Added the measurement method of solar blue-luminous transmittance and solar IR transmittance (see 9.6, 9.7) to adapt to China's technical conditions and increased operability; h) Deleted the content of the logo (see Chapter 8 of ISO 8980-3.2022) to adapt to the Chinese standard system. Its content is stipulated in relevant product standards; i) Added test reports (see Chapter 10) to adapt to China's technical conditions and increased operability; j) Added solar radiation spectral power distribution function for calculating solar IR transmittance (see Annex E) to adapt to the technical conditions in China and increased operability. This document has made the following editing changes. - To coordinate with Chinese existing standards, the standard name was changed to "Uncut finished spectacle lenses -- Part 3.Transmittance test methods"; Uncut finished spectacle lenses -- Part 3.Transmittance test methods1 ScopeThis document describes the test method for the transmission ratio performance of glasses lenses. This document applies to testing the transmission ratio performance of glasses lenses. Other relevant glasses product transmission ratio test methods are performed in accordance with this document.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 3978, Standard illuminants and geometric conditions GB/T 20147, CIE standard colorimetric observers (GB/T 20147-2006, CIE 10527.1991, IDT) GB/T 26397, Ophthalmic optics -- Terminology (GB/T 26397-2011, ISO 13666.1998, MOD) JJF 1106, Calibration specification of transmittance measuring equipment for ophthalmic products3 Terms and definitionsFor the purposes of this document, the terms and definitions defined in GB/T 26397 as well as the followings apply. 3.1 spectral transmittance τ (λ) At any specified wavelength (λ), the ratio of the spectral radiation flux through the lens to the incident spectral radiation flux. (6). The measurement methods for luminous transmittance τV and traffic signal transmittance τ SIGN are described in sections 8.1.1 and 8.1.2. 8.1.4 Transmittance in the solar ultraviolet A spectrum τSUVA To measure the transmittance in the solar ultraviolet A spectrum τSUVA, the spectral power distribution function of solar radiation and the relative spectral damage function of ultraviolet radiation should be used for calculation. The spectral bandwidth should not exceed 5 nm. The wavelength sampling interval for spectral transmittance should not exceed 5 nm. Calculate according to formula (12). 8.1.5 Transmittance in the solar ultraviolet B spectrum τSUVB To measure the transmittance in the solar ultraviolet B spectrum τSUVB, the spectral power distribution function of solar radiation and the relative spectral damage function of ultraviolet radiation should be used for calculation. The spectral bandwidth is not greater than 5 nm. The wavelength sampling interval for spectral transmittance should not exceed 5 nm. Calculate according to formula (13). 8.1.6 Transmittance in the solar ultraviolet spectrum τSUV To measure the transmittance in the solar ultraviolet spectrum τSUV, the spectral power distribution function of solar radiation and the relative spectral damage function of ultraviolet radiation should be used for calculation. The spectral bandwidth should not exceed 5 nm. The wavelength sampling interval for spectral transmittance should not exceed 5 nm. Calculate according to formula (11). 8.1.7 Solar blue-luminous transmittance τsb To measure the solar blue-luminous transmittance τsb, the solar spectral power distribution function and blue light damage function should be used for calculation. The spectral bandwidth should not exceed 5 nm. The wavelength sampling interval for spectral transmittance should not exceed 5 nm. Calculate according to formula (15). 8.1.8 Solar IR transmittance τSIR To measure the solar IR transmittance τSIR, the solar spectral power distribution function should be used for calculation. The wavelength sampling interval for spectral transmittance should not exceed 10 nm. Calculate according to formula (16). 8.2 Photochromic lenses 8.2.1 Preprocessing After cleaning the lenses, follow the procedures specified in the technical instructions provided by the manufacturer to keep the lenses in a faded state. ......Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al. 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