LED基础知识.doc

LED400-700400X-700LEDLight EmittingDiode,LEDLEDLEDLED15150LED10%7-8%LEDLEDPNPN5-10LED1. 260,5S,2.5mm,.2. LED.3. ,80,.4. :LED: ,.,.5V25.5. LED20mA,15-19mA.6. ,.7. LED,.8. ,LED.9. LED,LED,.:(,)LED,LED.10. LED,2mm,LED,901.LED K- 8000-8500k 6500-7500k 5500k 4000-4600k 4000k 4000-5000k 3450-3750k 2500-3000k 3000k 2700k 1950-2250k 2000k3300K3000-6000K6000Ka. b. CIE100Ra=23Ra=6090(Ra)100 /lm/wCIEA2856KX0=109.87Y0=100.00Z0=35.59B4874KX0=99.09Y0=100.00Z0=85.32C6774KX0=98.07Y0=100.00Z0=118.18D656504KX0=95.05Y0=100.00Z0=108.91DD65CIECIECIEA2856KB4874KABD-G C6774KACD-G CIEABCABCD65CIED65D65D65D757500KLabLabCIELabLLightness 0-100aba- 120-120b -120-120LEDLEDpnpnI-VC-V1LED1.1 I-V LEDpnLEDI-V(1) oaoaaV0VVaRLEDGaAs1VGaAsP1.2VGaP1.8VGaN2.5V2IFIF = IS (e qVF/KT C1) -IS V0VVFIF VF IF = IS e qVF/KT3 V0pnV= - VR IRV= -5VGaP0VGaN10uA4 V- VR VR VR IRV-VRIRLEDVR1.2 C-VLED99mil (250250um)1010mil1111mil (280280um)1212mil(300300um)pnCn+pfC-V21MHZC-V1.3 PF mLEDIFUFP=UFIFLEDTjTaTjTaP= KTTj C Ta1.4 LCD10-310-5SCRTPDPLED10-610-7Sus LEDtr tf t0 LEDtr10%90%LED tf10%LEDGaAsGaAsPGaAlAs10-9SGaP10-7S10100MHZ2 LED2.1 I2.1.1LED902.1.2 ILED 1 LED LED 21/2 = 6 21/2LED51030452.2 LEDLEDpnLEDLED 1InGaN/GaN 2 GaP:N 3 GaP:Zn-O4 GaAs 5 Si 6 InGaN/GaNp = 460465nm GaP:NLEDp = 550nm GaP:Zn-OLEDp = 680700nm LEDGaAsp = 910nm SiLEDpp LEDp-p+LEDLED40 nm LEDLEDLEDpGaPLED2.3 FLEDFLEDLEDLEDlmLEDLED1 lmLEDF1.51.8lm1mm1mmLEDF=18 lm2.4 LEDpnLED = 555nm680 lm/wKPF P=Pd F=KPd =/pn=e/hcIPdW=UIP=P/Whc=ev,P F=F/PP=KPW K= F/P LEDF/W=KPLEDLEDLEDLED pnm lm/w 700660650 GaP:Zn-OGaAlAsGaAsP 2.40.270.38 120.50.5 130.30.2 590 GaP:N-N 0.45 0.1 555 GaP:N 4.2 0.7 0.0150.15 465 GaN 10 GaN+YAG 1.618LEDLED=ice ipnceLEDi3.6n1-12/n1+12=0.3232%e n=1.55 Egn=2.42.6As-S(Se)-Br(I)GaAsGaAsPGaAlAsLED462.5LEDBO=IO/Acd/m2NitBO7000Nit14108NitLEDLEDJOBOcBOpn2.6LEDBt=BO e-t/BttBOBt=1/2BOttLED103 104 BO Bt=100010000Bt=BO e-t/Bt=1/2BOtLED106LEDIF=20mALEDLEDLED35%6000h3 LEDpnIF10mA1020mALEDLEDpBOLEDLEDp T=0T0+Tg0.1nm/10