HeNe激光光束聚焦物鏡優(yōu)化設計實例

1、He-Ne激光光束聚焦物鏡優(yōu)化設計實例一、設計任務1）焦距f=60mm；相對孔徑D/f=1/2；工作波長九=0.6328um。2）此鏡頭只需校正軸上物點球差。3）幾何彌散圓直徑小于0.02mm。4）鏡頭結構盡量簡單，爭取兩片達到要求。二、鏡頭片數及玻璃選擇的考慮和初步分析一）單片低折射率的情況優(yōu)化后，它的結構參數、點列圖和像差曲線分別如下所示。圖1低折射率單片透鏡的結構參數SPOTDIAGRAMLEME：HIE：HDTITLE.TTiUDEC益ZD11LHITSffiEHECFiJtt:；.FIB_0JLFHE：RFCRG:6?3.t2LEEDRFOD.e:1L16.6HECFLEBFE：；H

2、MDFEFEFHJLE；CHIEFFflTCi-.ffiEffJWFUST遼EKW側吐即EHEI.SM:CONFTCLIRATinN1DF1圖2低折射率單片透鏡的點列圖圖3低折射率單片透鏡的像差曲線二）單片高折射率的情況更換高折射率的玻璃后，其結構參數、點列圖和像差曲線如下圖所示。圖4高折射率單片透鏡的結構參數高折射率雙片透鏡（一）初始結構初始結構的參數、像差曲線和點列圖如下圖所示。IJBT：0.0000QEUEdit:SolvesOptionsHelpSurf:TypeCcirjr.entRadiusThicknessGlassOBJStandardInfinityInfinitySTOSt

3、andard47.221000S.0000001.91F0.0Standard-SO.0000000.0000003Standard-SO.0000005.0000001.91r0.04Standard312.5=5100053.343573IMAStandardInfinity圖7高折射率雙片初始結構EY_11111PYTRANSFERSERRYFANPLOTLENSHASNOTITLE.THUDEC2Z2D1LMl=lXIMLIM名匸：口LE：10000Eii3MICRONS.0.633CuNFTCURATIijN1DF1891V41.91EditSolvesOptionsHelpLens

4、DataEditor13459S19UpdateSettingsEi仃tWindowTextZoomBWS:SpotDiagramSPOTDIAGRRM圖躺N初始高折射率雙片透鏡的點列圖LHK：74LCiffiSJMFIlSF.jEBIC-.SfflRSF.JE-HS.MCUNPTCURATZEUN1DF1LEWSFtiSNDTITLEThUDEC益2D11LtnTSl=RII第一步優(yōu)化經優(yōu)化出的結構、像差曲線和點列圖分別別如下圖所示!Suez:TypeCcirir.entRadiusIhickneaaGlassInfinity圖10第一步優(yōu)化出的高折射率雙片透鏡結構參數StandardInf

5、inityInfinityStandard32.517S13MIMAStandardStandardStandardStandard-97.75172339.130S09V.000000-271.014S71V-35.360590V5.000000IET：EliKIKl且m：日，memnsErPYUpdateSettingsPrintWindowTextZoomOBT!0.0000DEGTRFlNEWEFEE啟RYFRNFLCITLENSHhSNOTITLE.THLIDECZZZ01LMAXIMUM名匚：口1-匚：=tG.BOOMICRONS0.633g呼圧側FHHT.zEBIC-SfflRH

6、r.JC-HSSH：圖11第一步優(yōu)化出的高折射率雙片透鏡的像差曲線1（三）第優(yōu)化出的結構、像差曲線和點列圖分別如下圖所示。經第一步優(yōu)化后的調制傳遞函數MTF如圖16所示。BlLensDataEditor二EditSolvesOptio仃sHelpSurf:TypeCcirjr.entRadiusIh-icknessA.OBJStandardInfinityInfinitySTOStandard39.315130VS.0000001.91f0.0Standard-2S1.41G741V13.502400V3Standard-3V5.0000001.91F0.04Standard-9S.070298F32.637404VIMAStandardInfinity圖13第二步優(yōu)化出的結構參數圖15第二步優(yōu)化后的點列圖UpdateSettingsPrint曹MowTextZoomIED.IZIZI3I3DEC1.0IFDLIZIED.IZIZI3I3DEC1.0IFDLIZ：HFO4FlTT匸：口殲舊門詢HTFLENSTHUT