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使用無限遠校正目標的管鏡
UsingTubeLenseswithInfinityCorrectedObjectivesInordertocreateanimagewithaninfinitycorrectedobjective,atubelensmustbeusedtofocustheimage.Oneadvantagetousinganinfinitycorrectedobjectivewithatubelensisthattherecanbeaspacebetweentheobjectiveａnd...
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選擇正確的測試目標
ChoosingtheCorrectTestTargetTesttargetsareusefulwhenevaluatingorcalibratinganimagingsystem'sperformanceorimagequality.Thiscouldincludetroubleshootingthesystem,certifyingorevaluatingmeasurements,aswellasestablishingafoundationtoensurethesyst...
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機器視覺過濾
FilteringinMachineVisionTherearemanydifferenttypesoffiltersinmachinevisionthatcanbeutilizedtoimproveorchangetheimageoftheobjectunderinspection.Itisimportanttounderstandthedifferenttechnologiesbehindthevarioustypesoffiltersinordertounderstan...
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如何測量您的成像系統中的景深
GaugingDepthofFieldinYourImagingSystemOvertheyears,wehaveansweredcountlessquestionsregardinglensperformance.Ofthosequestions,nonehavebeenmoredifficulttodefinethanrequestsfordepthoffield.Thereasonforthisdifficultyhasmoretodowiththevaguenesso...
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調制傳遞函數簡介
IntroductiontoModulationTransferFunctionWhenopticaldesignersattempttocomparetheperformanceofopticalsystems,acommonlyusedmeasureisthemodulationtransferfunction(MTF).MTFisusedforcomponentsassimpleasasphericalsingletlenstothoseascomplexasamult...
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像素尺寸和光學元件
PixelSizesａndOpticsUnderstandingtheinterplaybetweencamerasensorsａndimaginglensesisavitalpartofdesigningａndimplementingamachinevisionsystem.Theoptimizationofthisrelationshipisoftenoverlooked,ａndtheimpactthatitcanhaveontheoverallresolutionoft...
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?遠心照明：為什么在機器視覺應用中需要它
ecentricIllumination:WhyYouNeedItinMachineVisionApplicationsImagingａndinspectionprojectsrequireprecisionopticalcomponentsａndalignmenttoachieveoptimalperformance.Thesemachinevisioninspectionapplicationsutilizeimaginglenses,illuminationsource...
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使用C型可調對焦鏡頭
UsingC-MountFocusTunableLensesIntroductionOptotuneElectricallyFocus-TunableLensesprovideflexible,fast-focusingsolutionsforawidevarietyofmachinevisionapplications,includingqualitycontrol,sorting,orbarcodereading.Unliketraditionalopticalsetup...
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在線照明注意事項
In-lineIlluminationConsiderationsIn-lineilluminationisauniquestyleoflightingthatincorporatestheilluminationintotheopticaltrainofthemachinevisionlens,usuallybymeansofafiberopticlightguideorLEDlightsourceａndabeamsplittingoptic.Althoughin-line...
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光偏振技術的成功
SuccessfulLightPolarizationTechniquesVideoａndmachinevisionsystemsrelyonelectronicimagersthattypicallyexhibitanywherefromeight-bittotwelve-bitsignal-to-noiseratio.Althoughsufficientformanyapplications,camerasinthiscategorymaybeproblematicinc...
