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  • 2017

    7-24

    了解中性密度濾鏡

    UnderstandingNeutralDensityFiltersNeutralDensity(ND)filtersaredesignedtoreducetransmissionevenlyacrossaportionofaspecificspectrum.NDfiltersaretypicallydefinedbytheirOpticalDensity(OD)whichdescribestheamountofenergyblockedbythefilter.Ahighop...
  • 2017

    7-24

    Fundamentals of Lasers

    FundamentalsofLasersHowDoTheyWork?Thebasicstructureofanylaserisbasedonanactivemedium(eitheragasorsemiconductor)containedbetweentworeflectors.Alaser'sreflectorscontainlightbyoscillatingitthroughamediumrepeatedlyallowingtheenergytobuildupwith...
  • 2017

    7-24

    Laser Damage Threshold Testing

    LaserDamageThresholdTestingLaserDamageThreshold(LDT),alsoknownasLaserInducedDamageThreshold(LIDT),isoneofthemostimportantspecificationstoconsiderwhenintegratinganopticalcomponentsuchasamirrorintoalasersystem.Usingalaserinanapplicationoffers...
  • 2017

    7-24

    Understanding Spatial Filters

    UnderstandingSpatialFiltersSpatialFiltersaredesignedtobeusedwithlasersto"cleanup"thebeam.Oftentimesalasersystemdoesnotproduceabeamwithasmoothintensityprofile.InordertoproduceacleanGaussianbeam,aspatialfilterisusedtoremovetheunwantedmultiple...
  • 2017

    7-24

    量子級(jí)聯(lián)激光器和應(yīng)用

    QuantumCascadeLasersandApplicationsContentCourtesyofDaylightSolutionsDaylightSolutionsQuantumCascadeLasers(QCLs)werefirstdemonstratedin1994bytheBellLabsTeamheadedbyJér?meFaistandFedericoCappasso.[1]TheopticalphysicsofQCLsdifferfromthatofoth...
  • 2017

    7-24

    Choosing the Correct Eyepiece

    ChoosingtheCorrectEyepieceTheeyepieceisanintegralpartofanycompoundvisualsystem.Itspurposeistomagnifytherealimageformedbyanobjectiveorintermediaterelaysystem.Forthisreason,theeyepiecedesignaffectsthemagnification,imagebrightness,fieldflatnes...
  • 2017

    7-24

    How to Choose a Magnifier

    HowtoChooseaMagnifierSELECTINGTHERIGHTMAGNIFIERFORYOURPURPOSESTochoosethecorrectmagnifierforthejob,firstdeterminewhattoolsaretobeusedonthejob;thendeterminethesizeandthecharacterofthesubject;andfinally,analyzetheobject'ssurfacecharacter.Then...
  • 2017

    7-24

    介紹反光目標(biāo)

    IntroductiontoReflectiveObjectivesMicroscopeobjectivesareoneofthemostrecognizablecomponentsofamicroscopedesign.Microscopeobjectivesmagnifyimagessotheycanbeviewedeasilybythehumaneyeviaaneyepieceorbyanimagingsystem(e.g.imaginglensandcamera).T...
  • 2017

    7-24

    顯微鏡和三色染色鏡的分析

    MicroscopyandtheAnalysisofaTrichromeStainWhenimagingbiologicalmaterial,moreoftenthannotitisextremelydifficulttodifferentiatebetweenvariousorganellesandtissues.Lightscattersdifferentlyfromeachstructure,butthechangeincontrastissoslightitbecom...
  • 2017

    7-24

    使用無(wú)限遠(yuǎn)校正目標(biāo)的管鏡

    UsingTubeLenseswithInfinityCorrectedObjectivesInordertocreateanimagewithaninfinitycorrectedobjective,atubelensmustbeusedtofocustheimage.Oneadvantagetousinganinfinitycorrectedobjectivewithatubelensisthattherecanbeaspacebetweentheobjectiveand...
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