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2017
07-24

深入了解錐透鏡
深入了解錐透鏡什么是錐透鏡?錐透鏡是一種圓錐棱鏡，由其α角和頂角定義。聚光透鏡可以將光聚焦在光軸上的某一點(diǎn)(例如，平凸(PCX)，雙凸(DCX)或非球面透鏡)。與之不同，錐透鏡可以將光聚焦到光軸上的多個點(diǎn)（圖1）。錐透鏡產(chǎn)生的光束穿過光軸，當(dāng)錐透鏡到圖像距離增大時，所形成的光環(huán)直徑也將增大，而光環(huán)的厚度保持不變。該光束具有貝塞爾光束的特性，沿光束傳播方向的光強(qiáng)分布不會發(fā)生改變。圖1:用錐透鏡聚光錐透鏡的貝塞爾光束特性與隨距離增長而發(fā)散的高斯光束不同，貝塞爾光束是非衍射光束，它在傳播時能保持光強(qiáng)分
2017
07-24

深度觀察球面畸變補(bǔ)償板
AnIn-DepthLookatSphericalAberrationCompensationPlatesOpticalaberrationsaredeviationsfromaperfect,mathematicalmodel.Itisimportanttonotethattheyarenotcausedbyanyphysical,optical,ormechanicalflaws.Rather,theycanbecausedbythelensshapeitself,orplacementof
2017
07-24

光學(xué)鍍膜簡介
光學(xué)鍍膜簡介光學(xué)鍍膜由薄膜層組合而成，它會產(chǎn)生干涉效應(yīng)來改變光學(xué)系統(tǒng)的透射或反射性能。光學(xué)鍍膜的性能取決于層數(shù)、每層的厚度和不同層之間的折射率。精密光學(xué)中常見鍍膜類型有：增透膜(AR)、高反射（鏡）膜、分光鏡膜和濾光片膜（短波通，長波通，陷波等）。增透膜適用于大多數(shù)折射光學(xué)件，可以增大光通量并減少不必要的反射。高反射膜可以在單個波長或某段波長范圍內(nèi)提供大反射，多用于反射鏡。分光鏡膜用于將入射光分為透射光和反射光輸出。濾光片鍍膜適用于大量生命科學(xué)和醫(yī)學(xué)應(yīng)用，能夠以特定波長透射、反射、吸收或衰減光。
2017
07-24

Benefits of Hard Coatings
BenefitsofHardCoatingsTraditional,softcoatings,atechniquecommonlyusedforcoatingopticalcomponents,maysoonberenderedobsoletebyahigherperformingcoatingtechniqueknownashardcoating.Asdetailed,hardcoatingsprovideseveraladvantagestotraditionalsoftcoatings.S
2017
07-24

單色光學(xué)像差
ChromaticａndMonochromaticOpticalAberrationsDesigningopticalsystemsisneveraneasytask;evenperfectlydesignedsystemscontainopticalaberrations.Thetrickisinunderstandingａndcorrectingfortheseopticalaberrationsinordertocreateanoptimalsystem.Todoso,considerth
2017
07-24

光學(xué)畸變比較
ComparisonofOpticalAberrationsOpticalaberrationsaredeviationsfromaperfect,mathematicalmodel.Itisimportanttonotethattheyarenotcausedbyanyphysical,optical,ormechanicalflaws.Rather,theycanbecausedbythelensshapeitself,orplacementofopticalelementswithinas
2017
07-24

使用短通及長波通濾光片定制帶通濾波器
CustomBandpassFilterusingShortpassａndLongpassFiltersBandpassfiltersareopticalfiltersthatallowtransmissionofaspecificrangeofwavelengths,orband,whileblockingotherwavelengths.Manyoff-the-shelfbandpassfilteroptionsareavailable,butwhenanapplicationhasspec
2017
07-24

Diffuser Selection Guide
DiffuserSelectionGuideDiffusersareanopticalcomponentusedtoevenlydistributelightfromasourcewhileeliminatingbrightspots.AperfecteddiffusershouldcreateLambertianscatteringwheretheradianceisindependentofangle.Withapplicationsrangingfromprojectorscreensto
2017
07-24

Edge-Blackening
Edge-BlackeningHowtoSpecifyEdgeBlackenedOpticsAnyofourlenseswithadiameterof5mmorgreatercanbespecifiedwithblackenededges.Tospecifytheblackening,simplyappenda–INKtotheBBARcoatedstocknumber.Forexample,toordera10mmdiameter,10mmfocallength,VIS0°coatedDCXl
2017
07-24

成本有效的光學(xué)設(shè)計(jì)和公差的關(guān)鍵
KeystoCostEffectiveOpticalDesignａndTolerancingAsmostdesignersknow,opticaldesignsoftwarecanbeapowerfultool.Butit'sjustthat,a"tool".Theproperinterpretationofoptimizedresultsisjustasimportantastheinputofcorrectinformation.Thatiswhyexperienceddesignerswe
2017
07-24

離軸拋物面鏡選擇指南
Off-AxisParabolicMirrorSelectionGuideParabolicmirrorshavetheabilitytofocuscollimatedlightwithoutintroducingsphericalaberration.AnOff-AxisParabolic(OAP)mirrorissimplyasidesectionofaparentparabolicmirror.CollimatedlightthatisincidenttoanOAPmirrorisfocu
2017
07-24

Optical Flats
OpticalFlatsPRECISIONOPTICALFLATSAnopticalflatisapreciselypolishedflatsurface,usedasareferenceagainstwhichtheflatnessofanunknownsurfacemaybecompared.EdmundOpticsoffersbothsinglesurfaceａnddualsurfaceopticalflatsineitherZERODUR®orFusedSilica.Theflatnes
2017
07-24

光學(xué)101：1級理論基礎(chǔ)
Optics101:Level1TheoreticalFoundationsTheElectromagneticSpectrum|Interference|Reflection|Refraction|Dispersion|DiffractionOpticsisthebranchofphysicsthatdealswithlightａnditspropertiesａndbehavior.Itisavastsciencecoveringmanysimpleａndcomplexsubjectsrang
2017
07-24

Polarizer Selection Guide
PolarizerSelectionGuideFormoreinformationonpolarizationreadIntroductiontoPolarization.Polarizationisanimportantcharacteristicoflight.Polarizersarekeyopticalelementsforcontrollingyourpolarization,transmittingadesiredpolarizationstatewhilereflecting,ab
2017
07-24

大功率光學(xué)涂料的復(fù)雜性
TheComplexitiesofHigh-PowerOpticalCoatingsIntoday'sopticsindustry,manyprecisionopticalelementsreceivecoatingsinordertoimprovetheirtransmissionorreflectionforcertainwavelengthsorpolarizationstates.Themostcommontypesofcoatingsareanti-reflection(AR),hig
2017
07-24

紅外（IR）應(yīng)用的正確材料
TheCorrectMaterialforInfrared(IR)ApplicationsIntroductiontoInfrared(IR)Infrared(IR)radiationischaracterizedbywavelengthsrangingfrom0.750-1000μm(750-1000000nm).Duetolimitationsondetectorrange,IRradiationisoftendividedintothreesmallerregions:0.750-3μm,
2017
07-24

了解中性密度濾鏡
UnderstandingNeutralDensityFiltersNeutralDensity(ND)filtersaredesignedtoreducetransmissionevenlyacrossaportionofaspecificspectrum.NDfiltersaretypicallydefinedbytheirOpticalDensity(OD)whichdescribestheamountofenergyblockedbythefilter.Ahighopticaldensi
2017
07-24

Fundamentals of Lasers
FundamentalsofLasersHowDoTheyWork?Thebasicstructureofanylaserisbasedonanactivemedium(eitheragasorsemiconductor)containedbetweentworeflectors.Alaser'sreflectorscontainlightbyoscillatingitthroughamediumrepeatedlyallowingtheenergytobuildupwitheachpass.L
2017
07-24

Laser Damage Threshold Testing
LaserDamageThresholdTestingLaserDamageThreshold(LDT),alsoknownasLaserInducedDamageThreshold(LIDT),isoneofthemostimportantspecificationstoconsiderwhenintegratinganopticalcomponentsuchasamirrorintoalasersystem.Usingalaserinanapplicationoffersavarietyof
2017
07-24

Understanding Spatial Filters
UnderstandingSpatialFiltersSpatialFiltersaredesignedtobeusedwithlasersto"cleanup"thebeam.Oftentimesalasersystemdoesnotproduceabeamwithasmoothintensityprofile.InordertoproduceacleanGaussianbeam,aspatialfilterisusedtoremovetheunwantedmultiple-orderener

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