Optical design of a freeform TIR lens for LED streetlight

Optical design of a freeform TIR lens for LED streetlight

ID:40086762

大小:911.88 KB

页数:5页

时间:2019-07-20

Optical design of a freeform TIR lens for LED streetlight_第1页
Optical design of a freeform TIR lens for LED streetlight_第2页
Optical design of a freeform TIR lens for LED streetlight_第3页
Optical design of a freeform TIR lens for LED streetlight_第4页
Optical design of a freeform TIR lens for LED streetlight_第5页
资源描述:

《Optical design of a freeform TIR lens for LED streetlight》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库

1、Optik121(2010)1761–1765ContentslistsavailableatScienceDirectOptikjournalhomepage:www.elsevier.de/ijleoOpticaldesignofafreeformTIRlensforLEDstreetlightJinboJiang,SandyTo,W.B.Lee,BennyCheungAdvancedOpticsManufacturingCentre,GH040,DepartmentofIndustryandSyst

2、emsEngineering,TheHongKongPolytechnicUniversity,HungHom,Kowlong,HongKongarticleinfoabstractArticlehistory:SecondaryopticsisacriticalcomponentdeterminingtheoutputefficiencyandlightdistributionoftheReceived18December2008LEDstreetlight.Agoodroadwayillumination

3、requirestheLEDstreetlighthavearectangularlightAccepted23April2009patternjustcovertheroadwayandwithoutexcessspilllightcreepingintoyardsandshiningintowindowsofneighborresidents.TheadoptionoftheunsymmetricalfreeformopticswithdifferentlightKeywords:distributio

4、nsalongXandYdirectionsisnecessary.ThewholeLEDstreetlightcanbeconstructedifonlyLEDstreetlightmountstheseLEDmodulesontheplanarPCBplate.Themechanism,thermalmanagement,andtheFreeformlenspowercontrolelectronicsoftheLEDstreetlightbecomeverysimple.Inthispaper,ano

5、pticaldesignSecondaryopticsapproachofafreeformTIR(totalinternalreflection)lensfortheLEDstreetlightisinvestigated.WithTIRthesefreeformlenses,highoutputefficiency,evenlightdistribution,andbatwingfarfieldbeamangleLightdistributiondistributioncanbeachieved.&2009E

6、lsevierGmbH.Allrightsreserved.1.Introductionbenefitthatiscapableofeliminatingglare,hotspotsandrelatedvisibility,safetyandenergy-wastingproblems.EvenlightLEDlightingisregardedasanewenergy-savingstrategyin21stdistributionimprovesthestreetlightingfunctionandcr

7、eatesacentury.ManycitiesacrossChina,Europe,andNorthAmericaarebetterenvironmentforpeopleandvehicles.LEDstreetlightscanexperimentingwithLEDstreetlights.TheLEDstreetlightsprovidealsobeshiftedtowardeithertheredortheblueendoftheamuchlongerlifetime(morethan5time

8、slongerthanMHandspectruminordertomatchdifferentwavelengthsoflighttotheHPSlamps),morecontrollableandefficientformoflightingthandifferentlightingrequirementsofspecifictimesofdayandnight,incandescentsources.LEDsol

当前文档最多预览五页,下载文档查看全文

此文档下载收益归作者所有

当前文档最多预览五页,下载文档查看全文
温馨提示:
1. 部分包含数学公式或PPT动画的文件,查看预览时可能会显示错乱或异常,文件下载后无此问题,请放心下载。
2. 本文档由用户上传,版权归属用户,天天文库负责整理代发布。如果您对本文档版权有争议请及时联系客服。
3. 下载前请仔细阅读文档内容,确认文档内容符合您的需求后进行下载,若出现内容与标题不符可向本站投诉处理。
4. 下载文档时可能由于网络波动等原因无法下载或下载错误,付费完成后未能成功下载的用户请联系客服处理。