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1、vol 2010 04 Rising adoption of LED architectural lighting worldwide Shanghai Expo s Architectural LED Lighting Taking a Closer Look at LED Architectural Lighting on the forefront of LED industry trendso on t th hehe f f forefront t o of f f LELELED indud dust str ry t tre dnds BeLight China to becom
2、e an LED production stronghold with government subsidy policies By Littelfuse PLED series devices offer features that increase protection and extend the useful life of LED lighting designs In applications where high reliability is at a premium and maintenance difficult Littelfuse PLED devices will h
3、elp withstand outdoor environment conditions that often damage sensitive electronics In addition to ESD lighting and reverse connection protection functions PLED devices bypass failed LEDs and allow the rest of the string to light This in turn helps to extend the time periods when LED circuit replac
4、ement is required For addition information please visit Littelfuse PLED devices offer a switching feature that bypasses failed LEDs to enable other LEDs within the string to function LITTELFUSE LED RELIABILITY DEVICES HELP YOU DELIVER ASSURE HIGHLY RELIABLE LOW MAINTENANCE OUTDOOR LED LIGHTING 04 Be
5、Light vol 04 2010 CONTENTS on the forefront of LED industry trends Belight Vol 04 Cover Story Feature Column Market Watch Interview Technology Calendar Ivan Lin LEDinside 6 10 Ivan Lin LEDinside 12 O qq P P P 8 w 5 P P 8 8 8 5 the compound annual growth rate of LED architectural lighting is estimate
6、d to reach 37 vol 04 2010 BeLight 09 Q 0607 08 3 F 06 3 F 07 3 F 08 Cover Story 10 BeLight vol 04 2010 5 6 P 8 P 2 P J q 8 3 An architectural lighting designer s perspectives of LEDs J P P J q q J P P 2 6 P J P 1 P TU Q M P 8 Y M P 8 8 Z X 5 P P O P a A Q 6 6 1M G O 5 P P J 1M G K P 1M G K P P J m 1
7、M G K P 1 8 P 2 P vol 04 2010 BeLight 19 LEDinside has conducted an in depth research on the current status of China s LED chip industry For detailed information about individual company s MOCVD plan please refer to LEDinside s 2010 Report on China s LED Chip Industry 5 P 1M G K P K P P 8 Q P J O O
8、P w P P P P P P b Pw P 8 j 6P P Column Column 22 BeLight vol 04 2010 Innovation and Breakthrough CHINASSL 2010 the 7th China International Exhibition and Forum on Solid State Lighting P 5 2 M F P P F J 5 M M b 6 P J 8 J A 8 P F G G P 1 m restricted since they could not successfully P P G P 26 BeLigh
9、t vol 04 2010 PKG Typ mA VF Typical U mcd HighLOWAvg Price TV5630606 6 9000 10500 28 30lm 0 20 130 17 3 0 18 J 3020203 21800 20000 110 040 050 0 05 0 060 0 060 040 11 1900 22003 2203014 5630606 69000 105000 20 130 17 3 0 18 203 22000 23000 120 070 090 0 09 0 060 0 060 04 0 111800 20003 2203020 0 070
10、 0 070 040 111900 22003 2203014 203 21400 18000 110 070 090 0 09 Y 203 21400 18000 10 060 080 0 08 3503 21000lm1269 12 10 0 18 0 16 0 14 0 12 0 10 0 08 0 06 0 04 0 02 0 00 Price Low Price High USD 1Q08 2Q08 3Q08 4Q08 1Q09 2Q093Q09 4Q09 1Q10 2Q10 P Mw b M P 3 Z P P 8 P P 1 P J J P 1 6 P 1 ZM 1M 7 Chi
11、na 1 P P j P J features of color correction high refresh rate P P 1 p P J future T 8 P Reading between the lines How to make accurate performance assessments from a power LED datasheet By Rudi Hechfellner and Steve Landau 8 c j O P O P 2 P m m P P 15 P P P P P 8 8 Manufacturer MFR 1 MFR 2 Data sheet
12、 Minimum Flux 91lm 107lm Actual Drive Current Data Sheet TJ max Operating TJ calculated 25CA Rth50 K W 700mA 72 Normalized Min Flux 25C 135C 128C Determine Flux De rating Factor Actual Flux MFR 3 MFR 4 130lm 100lm 700mA 700mA 700mA 141C 130C 78 81 118lm 142lm 133lm 164lm 182lm 130lm 165lm 145C 150C
13、125C 150C M 8 8 Manufacturer MFR 1 MFR 2 MFR 3 MFR 4 Data sheet Min Flux 91lm 107lm 130lm 100lm Normalized Min Flux 700mA 700mA 700mA 700mA 700mA TA Ambient TemperatureT Pad Solder Pad Data sheet test temp Data sheet test time TA 25C TJ 25C TA 25C TPad 25C 25ms 25ms 25ms 25ms Normalize to drive curr
14、ent 164lm 182lm 130lm 165lm 15 P P J P K P 5 P P m P 5 5 T 8 G 8 P F j K j P M P Manufacturer MFR 2 MFR 4 Calculated Lumens 142lm 133lm Lumen Maintenance L70 Claim L70 50Kh condition Actual Operating TJ calculated 50 000 hours 50 000 hours TA N A 130C Data sheet TJ max 150C 150C Calculated current t
15、o achieve lumen maintenance Final Calculated Lumens 407mA 107lm 700mA133lm 36 BeLight vol 04 2010 Technology A realistic drive current for those applications that need bright light the real temperature at which the device will operate and compliance with lumen maintenance requirements vol 04 2010 Be
16、Light 37 Q LEDeXchange A New Global LED Trading Platform Customize the homepage of your company Expose your product and contact information Find your desired product s via search engine Directly contact buyers sellers Live customer service support Online MSN group s and QQ group s service Note Services above are subject to the update of our site please refer to available functions LEDinside is globally renowned with abundant domestic and overseas vendor resources According to the statistics in 2
