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1、ICS11.040.70CCSY89G日NationalStandardsofthePeoplesRepiblicofChinaGB451842024Optometryproducts一SafetytechnicaIspecificationsofcomponents眼视光产品元件安全技术规范Issuedate:2024-12-31ImpIementationdate:2026-01-01ContentsForeword111 Scope12 Normativereferences13 Termsanddefinitions13.1 14 SafetytechnicaIrequirements
2、44.1 GeneraI44.2 OpticaIrequirements44.3 Transmittanceproperty74.4 MechanicaIstrength94.5 Resistancetoperspiration94.6 MechanicaIstabiIity94.7 NickeIreIease105 Testmethods105.1 1Testconditions105.2 OpticaIrequirements115.3 Transmittancerequirements175.4 MechanicaIstrength205.5 Resistancetoperspirati
3、on225.6 BridgedeformationandIensretention225.7 NickeIreIease24AnnexA(informative)Resistancetoperspirationequipment25ForewordSACTC596SC1isinchargeofthisEnglishtransIation.IncaseofanydoubtaboutthecontentsofthisEngIishtransIation,theChineseoriginalversionshalIbeconsideredauthoritative.Thisdocumentisdra
4、ftedinaccordancewiththeruIesgivenintheGB/T1.12020DirectivesforStandardization-Part1:Rulesforthestructureanddraftingofstandardizingdocuments.AttentionisdrawntothepossibiIitythatsomeoftheeIementsofthisdocumentmaybethesubjectofpatentrights.TheissuingbodyofthisdocumentshalInotbeheIdresponsibIeforidentif
5、yinganyoralIsuchpatentrights.ThisdocumentwasproposedandpreparedbyMinistryofIndustryandInformationTechnoIogyofthePeopIesRepubIicofChina.：specificationsofOptometryproducts一SafetytechnicaIcomponents1 ScopeThisdocumentdefinesthetermsanddefinitions,specifiesrequirements,anddescribesthecorrespondingtestme
6、thodsforcomponents.ThisdocumentisappIicabIetocomponents.2 NormativereferencesThefollowingdocumentsarereferredtointhetextinsuchawaythatsomeoralIoftheircontentconstitutesrequirementsofthisdocument.Fordatedreferences,onIytheeditioncitedappIies.Forundatedreferences,theIatesteditionofthereferenceddocumen
7、t(includinganyamedments)appIies.GB/T6682WaterforanalyticallaboratoryuseSpecificationandtestmethodsGB/T26397Ophthalmicoptics一TerminologyGB/T38009Spectacleframes-RequiremetandmethodforthedetectionofnickelreleaseISO13666:2019Ophthalmicoptics-SpectaclelensesVocabulary3 TermsanddefinitionsForthepurposeof
8、thisdocument,thetermsanddefinitionsgiveninGB/T26397andISO13666andthefollowingappIy.3.1finishedspectacIesvarioustypesofspectacIeswhicharereadyforuse.Note:TypesgeneraIIyrefertoordinaryspectacIes,partiaIIyorfullyencIosedgoggIes,fIip-upordetachabIeadditionaIIenses,etc.CommonexampIesoffinishedspectacIesi
9、ncIudeprescriptionassembIedspectacIes,near-visionspectacIes,sunglasses,surfaceswimminggoggIes,snowgoggles,spectacIesforvehicIedrivingandroaduse,poIarized3Dglasses,etc.3.2componentsThemainpartsofthefinishedspectacIes.Note:ForexampIe,finishedlensesandframes.3.3focaIpowerGeneraItermcomprisingthespheric
10、aIandcyIindricaIvertexpowersofaIens.3.4dioptricpowerGeneraItermcomprisingthefocaIpowerandtheprismaticpowerofaIens.3.5vertexpowerReciprocaIoftheparaxiaIvertexfocaIIength.Note：AccordingtotheophthaImicconvention,the“powerofaIensisspecifiedasthebackvertexpower.DioptresareexpressedinreciprocaImetres(m1).
11、CommonIyusedsymbolsfordioptreareDanddpt,(1D=1m1).3.6PrismaticpowerTheprismaticeffectoftheIensreferencepoint.Note:CommonIyusedsymboIsorabbreviationsfortheprismdioptreareandcmm.3.7variationpowerpower-variationIensdifferencebetweenthevertexpowersatthesecondaryreferencepointandtheprimaryreferencepoint,o
12、rbetweendistancereferencepointandnearreferencepoint.Note1:Variationpowerisdefinedforpower-variationIensesonlyiftheyhavebothaprimaryandasecondaryreferencepoint.Note2:ForthemultifocaIIenses,thevariationpowerisadditionpower,whichisthedifferencebetweenthedistancereferencepointandnearreferencepointonthep
13、rescribedconditions.Note3:NominaIarithmeticvaIueofthedesignednegativepowerchangeofadegressive-powerIensfromthenearzonetotheupperpartoftheIens.SOURCE：ISO13666:2019,3.16.4,modified3.8referencepointstipulatedbythemanufacturer,onthefrontsurfaceofafinishedIensoronthefinishedsurfaceofabIankatwhichtheverif
14、icationpowerofaspecificportionappIiesSOURCE：ISO13666:2019,3.2.19,modified3.9distancereferencepoint,majorreferencepointPointonthefrontsurfaceoftheIensatwhichtheverificationpowerforthedistanceportionappIies.SOURCE：ISO13666:2019,3.2.20,modified3.10nearreferencepointPointonthefrontsurfaceoftheIensatwhic
15、htheverificationpowerforthenearportionappIies.SOURCE：ISO13666:2019,3.2.21,modified3.11PrimaryreferencepointPointonthefrontsurfaceofapower-variationIensatwhichtheverificationpowerforthedesignedprimaryuseoftheIensappliesNOTE:AlIpower-variationlenseshaveaprimaryreferencepoint.SOURCE：ISO13666:2019,3.2.22,modified3.12secondaryreferencepointpointonthefrontsurfaceofapower-variationIensatwhichtheverificationpowerforthedesignedsecondaryuseoftheIensappliesNote:Somepower-variationIensescanhaveasecondaryreferencepointthatisusedforthedeterminationofvariationpower.
