LED在景观照明中的应用毕业论文外文翻译.docx
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LED在景观照明中的应用毕业论文外文翻译.docx
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LED在景观照明中的应用毕业论文外文翻译
ApplicationofLEDinthelandscapelighting
Apartfromthemercury-freeLEDlightsource,savingenergy,materials,environmentalnon-electromagneticinterference,non-harmfulraysfiveadvantage,fieldsinlighting,especiallyinlandscapelighting,therearemanyadvantages.Suchas:
low-voltagepowersupply-nohigh-pressureareas,inordertoinsulationcostsmuchless,highreliabilityannexsimple-nostarter,ballastorEHVtransformer;simplestructure-asolidsourceofthegreatestadvantages,Non-carbonated,non-glasscase,nogassealingproblems,impactresistance;controllablegood-fastresponsetime(microsecondorderofmagnitude)canberepeatedfrequently-out,basicallyinert,willnotbetired;colorChunhou--SemiconductorPNjunctionproducetheirowncolor,pure,strong,richcolors-plusthreeprimarycolorsofdigitaltechnology,evolutionofarbitrarycolor;lightstructure-wood,cost-saving;lampsonstrengthandstiffnessrequirementsofverylow----ThecompactsizeoftheLEDlampscanbeseenastheLEDcells,onlythesmallestLEDmm2orderofmagnitudeorless;flexiblegood-LEDlightsourceofthecompact,LEDcanadapttoallkindsofdifferentsizeandgeometryofspacesizeThedecorativelightingrequirements,suchas:
point,line,surface,theball,differentforms,andanyformofartlightingsculpture;visible,LEDisworthyofagreenlightingofthe21stcenturyproud.
LEDdecorativelandscapelightingresearchanddevelopmentduetothecharacteristicsoftheLEDwithaseriesofadvantages,LEDlampsinthelandscapeofresearchanddevelopmentmainlyinthefollowingdirections:
gardenlights,pathlights,lampsandburied,smallspotlights,CaopingDeng,theFast-TrackRoadLamps,walllamp,andsoon.SourceuseLED,combinedwithchangesincontrol,upgradingtheHongtuoonthelandscape,makingthemmoreartistictastes.Non-standardprofiledthedevelopmentoflandscapelighting,landscapelighting,lampsinstalledtoprotectthelandscapeandenvironment,thepreventionoflightingthevisualimpact,inordertobeautifytheday,undertheartisticLianghuanight.ThisrequiresinstallationoflampsbecauseofthestructureandsystemtoKing,thearchitecturalfeaturestothesystem,manycannotmeetthestandardlampsismorethanrequired.LEDlampsdesignedflexible,especiallyforthesystemtoKingbecauseofthenon-standardlightingdesign,landscapelightingandvisualcoordination,beautifytheenvironmenttoachieveanewlevel.
ArtofLandscapeLightinglampsisitselfadevelopmentofVisualArts,andtheLEDlightsourcecanbemorecreativeartoflandscapelightingtoahigherrealm.AsthecontrollableLEDgood,richcolors,andmicroelectronictechnologyintelligentcontrol,toallkindsofideascanbecolourfulandexcitingjoyfulrhythm,melodybeautifullandscapelighting.Suchas:
LEDlightsPerak,Perakthanthegas-dischargelampstobemuchmorelongevity,notdamaged,andrichcolors.Anotherexample:
LEDlightswinds,justintelligentcomputercontrol,wecanachieve"Nowindatthe"rapidrotation,andalsoenablesautomatictransmissionandforthewonderfulcolorchanges.Similarideas,aslongastheinspiration,canachieve.
Lightingsculpturecategoryofdevelopment,anyofthesimulation,bionics,comics,cartoons,commercial,tourismandsoonthevariouslightingsculpture,andsoundcanbecombinedLEDtechnologyandmicroelectronicscontrol,whennecessary,togetherwithOnthemechanicalandelectricalintegrationtechnology,developedtoattractpeople'sattentionaseriesoflandscalightingsculptures.
LEDlightinglandscapeofintelligentcontroltechnology,LEDlightinglandscapeofintelligentcontroltechnology,adigitaloranalogtechnology,orcomputercontroltechnology,forthemostcompactorembeddedsystems.Characteristics:
highreliability,excellentprices;manychangesinpatterns;existingsingle-lightcontrol,anothergroupcontrolmode;manynon-standarddesign;longlonglampsormore(suchas:
long-zone,manyWalllinearlayout);LEDdisplaytechnologyandalotofdifference.Accordingtothelandscapingrequirements,changesincontrolmode,givestorichandcolorful,beautifulmelody,rhythmjoyfulfeelings,sometimestoshakethecoretogivepeopleastrongboost.AccordingtoLEDcontrollable,andthecharacteristicsofrichcolor,colorconstitutealmostunlimited.Inaccordancewiththeprinciplesofthethreeprimarycolorsandgray-scaledigitalcontroltechnology,ontheprincipleofevolutiontobealmostbeyondthearbitrarynaturecolor.Forexample:
threecolorLED,suchasusingonlytwogray-scalecontrol,namely:
thedarkandcanachieveeightkindsofcolorevolution;Anotherexample:
threecolorLED,athree-graycontrol,namely:
thatinthedark,Toachieve27kindsofcolorchanges;Anotherexample:
threecolorLED,suchastheuseoftheeightdigitalcontrolofgray,colorcategorieshasreachedanalarminglevel,reaching16.77millionkinds,eventhenamesofeverycoloryouaretoolateNamed.
Currently,LEDlampselectroniccontrolstructure,therearefiveormorecategories:
single-lightcontrol,lightcontrolgroup,orsuper-longspanofcontroloflights,noisecontrol,sensorcontrol.
Ontheperformanceoflife,thesiliconecanbeachievedtoextendtheservicelifeofwhiteLEDtarget,orevenreachmorethan40,000hoursoflife,butisnotreallysuitedtodothelightingontheapplicationofresearchstillneedstobe,becausethesiliconeIsaflexiblesoftmaterial,sointhepackagingprocess,theneedtopayspecialattentiontoapplicationoftheway,fromdesigningthemostappropriateapplicationoftechnology.
Forthefutureofthearea,improvewhiteLEDlightoutputefficiencywillbekeytowinningthepoint.WhiteLEDproductiontechniques,fromablueLEDandayellowYAGphosphormix,developedasimulationofthewhitetarget,theuseofcolourormixeduseofGaNmaterials,developedawhiteLED,theapplicationshavealreadyWillbereadoutinthedirectiontowardsamoreextensiveexpansion.
Inaddition,theluminousefficiencywhiteLED,whichhasbeengoodinthedevelopmentofLEDlightingpromotingtheJapanAssociationgoalistolookforwardtoin2009isexpectedtoreach100lm/wtheluminousefficiency,andinfact,aconsiderablenumberofIntheindustrytowardsthedevelopmentofthisarea,isexpectedinthenextfewyears,100lm/wluminousefficiencycanactuallycommercialapplications.
LEDmicro-electroniccontrolcircuitdesignoptimizationofthefocusis:
reliable,thepriceofdistinctions,usingcommoncomponents,sourcesofwealth.Thelengthorlongspanofcontrollightsinadditiontotheaboverequirements,butalsohasthefollowingadvantages,suchas:
ShuShimi,100metersand1,000metersabovethebandorlinearlayoutofthepointsource.OptimalDesignoftheobjectivesare:
motioncontrol,itisnecessarytocolourful,bringingamazingvisualimages,bothoftransition,havegraded,butalsotominimize-wire.
LEDdevelopmentofthemainissuestobetackledintotheLEDlightingisnewtothearea,isofepoch-makingsignificance.However,aswithanynewtechnology,LEDtherearestillsomeareasinurgentneedofimprovement.
1)researchanddevelopmentofhighpowerLEDlightsourceattheinternationallevel,Phlips,GE,OSRANandotherbigcompanieshavedouble-sphericalHIDproducts,whichiscurrentlytheworld'smostadvancedhigh-powerHIDlightsources,especiallyPhlipscompanybasedonthissourceofsportsVenueslamps,lampefficiencyandwithverygoodlightcurve.AlthoughLEDmanyuniqueadvantages,butthisareaisblank.High-powerdensitypointforthesemiconductorLEDlightsourceontheprincipleofLEDmaybealotoftechnicaldifficulties.
2)thedevelopmentofhighefficiency,highpowerfactor,thepriceofgiftedcompactmodularpowerLED,LEDpowersupplyissimple,canDCpowersupply,powersupplycanpulse.HIDnoneonlightsandaseriesofhigh-pressuretroubles.Atpresent,thelowefficiencyofthepowersupplysystem,draggeddownbytheLED,greatlyreducedthelevelofenergy.Switchingpowersupplyfromthe1970sto20KHZthestandardhasnowreachedmorethan1MHZthesoft-switchtechnology,thecruxoftheproblemishowtoachievequalityandcheap.
3)thedevelopmentofnewLEDmixedlight,blendingtechnicalLEDlightsource,unitvolumeisverysmall,onmanyoccasionsclearlymerits,butsometimesalsoshortcomings.Suchas:
theLED-typelightontheplane,thereareusuallyspot-beamandunevenblendphenomenon.Atpresent,themixedlight,blendingthequestionis:
mixedlight,blendedwiththeuniformleveloftransparencyofcontradictions.ThisissueisalsohinderedthedevelopmentofLED,primarilyformaterials,theneedtocapturethelandscapeLEDlampshaveaveryimportantpracticalsignificance.
ToenterthefieldofLEDlighting,lightingtechnologyisarevolutionaryleap.LEDlightingontheGreen'shistoriccontributiontothedevelopment,willbesilk-hoinlinewiththetimesfromthetubetothetransistoreraleap,evenastransistorsforevaluationbyleapsandboundstothechangesinthesamelarge-scaleintegratedcircuits,noexaggeration.
Inlandscapelighting,LEDhasamoreuniqueadvantages,canbeconfidentthat,LEDlampslandscapewillbemoreinterdisciplinaryfusionalongtheroad,towardtheartsandintelligent,flexibleinthedirectionofrapiddevelopment.
LED在景观照明中的应用
LED光源除了无汞、节能、节材、对环境无电磁干扰、无有害射线五项优点之外,在照明领域中,特别是在景观照明中,还有很多优势。
如:
低压供电——无高压环节,为了绝缘的开销要小得多,可靠性高;附件简单——无启动器、镇流器或超高压变压器;结构简单——具有固体光源的最大优点,不充气,无玻璃外壳,无气体密封问题,耐冲击;可控性好——响应时间快(微秒数量级),可反复频繁亮灭,基本无惰性,不会疲倦;色彩纯厚——由半导体PN结自身产生色彩,纯正,浓厚;色彩丰富——三基色加数码技术,可演变任意色彩;轻质结构——节材,节
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