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Nanjing CEC Panda Lighting Co., Ltd.

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LIGHTING MICROCLASSROOM

 

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The most basic LED energy saving lamp basic knowledge universal household lighting

Nowhomedecoration,LEDisnowpeopleusemostofthehomelights,itisakindofelectricalenergycanbeconvertedintolightenergyelectronicdeviceswiththecharacteristicsofthediode.Atpresent,differentlight-emittingdiodescanemitlightfromdifferentwavelengthsofinfraredtoblue,thecurrentissueofpurpleandultravioletlighthasalsobeenthebirthoflight-emittingdiodes.InadditiontotheblueLEDcoatedwithphosphor,thebluelightintowhitelightwhiteLED.LEDcolorandtechnology:TheLEDismadeofdifferentmaterials,canproducephotonswithdifferentenergies,whichcancontroltheLEDemittedbythewavelengthoflight,thatis,thespectrumorcolor.ThefirstLEDusedinthehistoryofthematerialisarsenic(As)gallium(Ga),thepositivePNjunctionpressuredrop(VF,canbeunderstoodaslitorworkingvoltage)is1.424V,thelightemittedfortheinfraredspectrumTheAnothercommonlyusedLEDmaterialforthephosphorus(P)gallium(Ga),thepositivePNjunctionvoltagedropof2.261V,thelightisgreen.Basedonthesetwomaterials,theearlyLEDindustryusesGaAs1-xPxmaterialstructure,theoreticallycanproducefrominfraredlighttoanywavelengthwithinthegreenlightoftheLED,thesubscriptXrepresentsthephosphoruselementtoreplacethepercentageofarsenicelements.GenerallythroughthePNjunctionvoltagedropcandeterminethewavelengthofLEDcolor.WhichtypicallyGaAs0.6P0.4redLED,GaAs0.35P0.65orangeLED,GaAs0.14P0.86yellowLEDandsoon.Asaresultofthemanufactureofgallium,arsenic,phosphorusthreeelements,socommonlyknownasthesethreeelementsLEDtube.TheGaN(galliumnitride),GaPgreenLEDandGaAsinfraredlightLED,knownasthetwo-elementLED.Thelatesttechnologyisafour-elementLEDmadeofAlGaInN,amixtureofaluminum(Al),calcium(Ca),indium(In)andnitrogen(N),whichcoversallvisibleandpartialUVThespectralrangeoflight.LEDluminousintensity:Luminousintensityunit(candlelightCandlepower)1CD(candlelight)referstothecompleteradiationoftheobject,intheplatinumfreezingpointtemperature,everysixtiethofthelightoftheunit,theluminousintensityunit(lumensLumen)Squarecmareaof