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                  • 2017

                    7-24

                    調(diào)制傳遞函數(shù)簡(jiǎn)介

                    IntroductiontoModulationTransferFunctionWhenopticaldesignersattempttocomparetheperformanceofopticalsystems,acommonlyusedmeasureisthemodulationtransferfunction(MTF).MTFisusedforcomponentsassimpleasasphericalsingletlenstothoseascomplexasamult...
                  • 2017

                    7-24

                    像素尺寸和光學(xué)元件

                    PixelSizesandOpticsUnderstandingtheinterplaybetweencamerasensorsandimaginglensesisavitalpartofdesigningandimplementingamachinevisionsystem.Theoptimizationofthisrelationshipisoftenoverlooked,andtheimpactthatitcanhaveontheoverallresolutionoft...
                  • 2017

                    7-24

                    ?遠(yuǎn)心照明:為什么在機(jī)器視覺應(yīng)用中需要它

                    ecentricIllumination:WhyYouNeedItinMachineVisionApplicationsImagingandinspectionprojectsrequireprecisionopticalcomponentsandalignmenttoachieveoptimalperformance.Thesemachinevisioninspectionapplicationsutilizeimaginglenses,illuminationsource...
                  • 2017

                    7-24

                    使用C型可調(diào)對(duì)焦鏡頭

                    UsingC-MountFocusTunableLensesIntroductionOptotuneElectricallyFocus-TunableLensesprovideflexible,fast-focusingsolutionsforawidevarietyofmachinevisionapplications,includingqualitycontrol,sorting,orbarcodereading.Unliketraditionalopticalsetup...
                  • 2017

                    7-24

                    在線照明注意事項(xiàng)

                    In-lineIlluminationConsiderationsIn-lineilluminationisauniquestyleoflightingthatincorporatestheilluminationintotheopticaltrainofthemachinevisionlens,usuallybymeansofafiberopticlightguideorLEDlightsourceandabeamsplittingoptic.Althoughin-line...
                  • 2017

                    7-24

                    光偏振技術(shù)的成功

                    SuccessfulLightPolarizationTechniquesVideoandmachinevisionsystemsrelyonelectronicimagersthattypicallyexhibitanywherefromeight-bittotwelve-bitsignal-to-noiseratio.Althoughsufficientformanyapplications,camerasinthiscategorymaybeproblematicinc...
                  • 2017

                    7-24

                    硅探測(cè)器的基本原理

                    BasicPrinciplesofSiliconDetectorsThroughthephotovoltaiceffect,silicondetectorsprovideameansoftransforminglightenergytoanelectricalcurrent.Therootofthetheorybehindthisphenomenonisasmallenergygapbetweenthevalenceandconductionbandsofthedetecto...
                  • 2017

                    7-24

                    非軸拋物面鏡的粗糙度

                    RoughnessofDiamondTurnedOff-AxisParabolicMirrorsSinglePointDiamondTurningisamanufacturingtechniqueforproducingoff-axisparabolic(OAP)mirrors,off-axiselliptical(OAE)mirrors,andotherprecisionmetalopticalcomponents.Whilethegoalofanyopticalmanuf...
                  • 2017

                    7-21

                    離軸拋物面鏡的制造工藝和傳統(tǒng)工藝的不同

                    離軸拋物面鏡是*表面反射鏡,其反射表面是組成原始拋物面反射鏡的一部分。每個(gè)反射表面都具有原始拋物面無色差地聚焦準(zhǔn)直光束或準(zhǔn)直寬帶點(diǎn)光源的能力。其全反射設(shè)計(jì)消除了透射光學(xué)元件會(huì)引入的位相延遲和吸收損耗。適合飛秒激光、紅外、太赫茲應(yīng)用。離軸拋物面鏡的制造工藝和傳統(tǒng)工藝是不同的,它致力于為航空/防衛(wèi)應(yīng)用提供大批量的更廉價(jià)的鏡片。傳統(tǒng)的OAPs制造工藝是通過挖切磨制,即從大的軸對(duì)稱拋物面(母鏡)進(jìn)行挖切一部分下來進(jìn)行拋光。顯然,這種整體加工、分體割切成型的面鏡磨制方案耗時(shí)長,低產(chǎn)量是...
                  • 2017

                    7-21

                    Testing and Targets

                    TestingandTargetsTesttargetsaredesignedtohelpevaluateorcalibratetheperformance(imagingquality)ofanimagingsystem.Thiscouldincludetroubleshootingasystem;benchmarking,certifying,orevaluatingmeasurements;orestablishingafoundationtoensuremultipl...
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