海面波浪坡度场光学测量装置的光源设计(英文)

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1、第31卷第5期发光学报Vo1．31No．52010年10月CHINESEJOURNALOFLUMINESCENCE0ct．．2010ArticleID：1000-7032(2010)05-0748—05DesignofLightSourceinOpticalMeasuringEquipmentforWaveSlopeFieldonSeaSurfacexuMing—ming，LANJu—sheng，CHENJie—xiang，WANGWen-ju(DepartmentofOpticalEngineeringAnhuiInstitute

2、ofOptics＆FineMechanics，ChineseAcademyofSciences，Hefei230031，China)Abstract：LightSOUrCeisaverysignificantlitingcomponent，andplaysacrucialroleintheoptica1measuringprocessforwaveslopefieldonseasnrface．RationalselectionoflightsourceisoneoftheimportantfactoIfl0rensuringaccu

3、racyandlayoutofthesystem．Basedontheadvantagescomparedwithshort—arcxenonlampaslightinginlu．minousefficiency，durability，reliability，safetyandconsumingpower，LEDsarebecomingthepreferredcandidateformanylightingapplicationsthatrequireuniformilluminationdistribution．Anassnmpt

4、i0nthataDpliedLEDsaslightsourcesofthemeasuringdeviceispresented，thefeasibilityhasclarifiedbytheoreticalcalculationandopticalsoft．waresimulatinTlKeywords：lightsources；LEDmodeling；LEDarrays：illuminationuniformityCLCnumber：TM923．4PACS：78．60．FiPACC：7860FDocumentcode：Alumin

5、ouseficiency，durability，reliability，safety，1Introductionandpowerrequirements，wepresentanassumptionThewaveslopefieldonseasurfaceisatypeofthatusingLEDsaslightsourcesoftheequipment．wavestructurenaturallyformed，andembodiestheWegetthequantityofrequiredLEDs，theoptimalkinemat

6、iccharacteristicsofshort．．waveonseaSur．LED·-to·LEDspacingandtheoptimumconfigurationface．Fig．1showstheslopemeasuringprinciplewithofLEDarraybyformuladerivation，andassumethecolorencodingmethod[，．Thelightsourceevenlycolor—codedplateasaflatscreenparalleltothesur—illuminates

7、colorcodingplate，whichislocatedinfaceoftheLEDarray．Finallywesimulateillumina—thefocalplaneoftheFresnellens．Thecone—shapedtiondistributiononthescreenbyopticalsoftwaretobeamswithdifferentcolors，whichareemittedfromverifyfeasibilityoftheassumption．differentpointsontheplate

8、，arecollimatedintoparallelraysindifferentdirectionsbyFresnellens．【I】一3CCDcamem3CCDcamera，thedistancefrommeanseasurfac