简介：ＡｎＩｎｔｅｌｌｉｇｅｎｔＤｅｓｉｇｎｏｆＥｌｅｃｔｒｏｎＬｅｎｓＳｙｓｔｅｍ￥ＬｅｔＷｅｉ；ＴｏｎｇＬｉｎｓｕ＆ＷｕＳｈｅｎｇｌｉ（ＥｌｅｃｔｒｏｎｉｃＥｎｇｉｎｅｅｒｉｎｇＤｅｐａｒｔｍｅｎｔｏｆＳｏｕｔｈｅａｓｔＵｎｉｖｅｒｓｉｔｙ，Ｎａｍｉｎ...

简介：Inthispaper,anultrathinmetalenshasbeenproposedbasedonaholographicmetasurfacethatconsistsofelongatedaperturesin40nmgoldfilm,whichexhibitintriguingpropertiessuchason-andoff-axisfocusingandalsocanconcentratelightintomultiple,discretespotsforcircularlypolarizedincidentlights.First,thespatialtransmissionphasedistributionsofthedesignedmetalenswitharbitraryfocusingcanbeobtainedbycomputergeneratedholography.Then,thediscretephasedistributionscanbecontinuouslyencodedbysubwavelengthnanoapertureswithspatiallyvaryingorientationsingoldfilm.Thesimulationresultsshowthatourdesignedmetalenscanworkefficientlyfordifferenttypesoffocusing.Finally,ourmetasurfaceshowssuperiorbroadbandcharacteristicsbetween670and810nm,andthecorrespondingfocallengthsofthedesignedlensesalsocanbeefficientlymodulatedwiththeincidentlightsatdifferentwavelengths.

简介：

简介：

简介：

简介：

简介：<正>AsIraisedthecamera,YangJiaxiuwaswalkingalonganarrow,muddymountainpathinavirginfirforest,carryingabout50litresofwater.Insteadofrunningaway,shestoodtoattention,armsakimbo,andgivingmeaserioussmile.Thegiantwoodenbasketonherbackalmostmadeherfallasshetriedtostraightenherbody.Whenshefinallyarrivedatherhouseshetwistedher

简介：Inthisstudy,thepolyacrylateintraocularrlensisirradiatedbyargonionwhichcanproducefreeradicals.Inordertoobtainbetterhydrophilicandlowerplateletsadhesion,monomervinylpyrrolidone(NVP)isgraftedontothehydrophobicpolyacrylateintraocularlenssurfaceinacertainreactionconditions.Specificchangesinintraocularlensaredetectedbystaticcontactangle(CA),scanningelectronmicroscope(SEM)andlighttransmittance.Theresultsshowthatthissurfacemodificationcangreatlyimproveitshydrophiliccharacterandsurfaceformation.

简介：Topreventthecomplicationsincataractsurgeries,theeyesofrabbitsandmonkeyswereimplantedwithintraocularlensfor360days.Methods:Theeyesoftherabbitswereperformedwithphacoemulsificationandsoftintraocularlensimplantation.Theeyesofthemonkeyswereperformedwithextracapsularcataractextractionandhardintraocularlensimplantation.Results:Thepostoperativereactionsincludedcornealedema,anteriorchamberexudation,posteriorcapsuleopacificationandsoon.Thecomplicationsintheeyesoftherabbitsweremorethanthatintheeyesofthemonkeys.Conclusion:Thedifferentpostoperativereactionshappenedindifferentanimals.Inclinicalthechoiceoftheoperativemethodandintraocularlensdependedonthecaseinordertoacquirethebestsight.

简介：Forthepurposeofreducingthevolumetricshrinkageandvolumetricshrinkagevariation,theprocessininjectionmoldingofasphericplasticlenswassimulated,andseveralprocessparameterswhichincludeholdingpressure,melttemperature,moldtemperature,filltime,holdingpressuretimeandcoolingtimewereoptimizedbyusinganorthogonalexperimentaldesignmethod.Finally,theoptimumprocessparametersandtheinfluencedegreeofprocessparametersontheaveragevolumetricshrinkageandthevolumetricshrinkagevariationareobtained.

简介：

简介：Opticalaxialscanningisessentialprocesstoobtain3Dinformationofbiologicalspecimens.Torealizeopticalaxialscanningwithoutmoving,thetunablelensisasolution.However,theconventionaltunablelensesusuallyinducenon-uniformmagnificationandresolutionissues.Inthispaper,wereportamovableelectrowettingoptofluidiclens.Unliketheconventionaltunablelens,ourproposedoptofluidiclenshastwoliquid-liquid(L-L)interfaces,whichcanmoveinthecellbyanexternalvoltage.TheobjectdistanceandimagedistanceareadjustedbyshiftingtheL-Linterfaceposition.Therefore,theproposedlenscanrealizeopticalaxialscanningwithuniformmagnificationandresolutioninmicroscopy.Toprovetheconcept,wefabricateanoptofluidiclensanduseitinopticalaxialscanning.Thescanningdistanceismorethan1mmwithuniformmagnificationandgoodimagingquality.Widespreadapplicationofsuchanewadaptivezoomlensisforeseeable.

简介：没有任何另外的设备，不可分的成像是一种3D显示技术。一个新系统在这份报纸被建议，它使用一个透镜的透镜数组在常规不可分的成像系统代替透镜数组。透镜的不可分的成像系统减少复杂性和不可分的成像系统的价格。常规不可分的成像系统的积极特征例如完整的视差和伪连续的看法点，仍然被坚持在水平方向的建议系统。光结果证明计算元素的图象的时间被25%与常规的相比减少。在垂直方向的综合图象的分辨率比常规系统的高4倍。这个建议系统在不可分的成像的申请上打开一个新方法。

简介：

简介：AIMTo评估穿二种不同类型的新keratoconus病人的角膜的房间形态学僵硬气体可渗透(RGP)为1y.METHODSThirty的隐形眼镜39个新keratoconus病人的九只眼睛与二被选择并且随机适合RGP隐形眼镜的类型。组1有21只眼睛与常规僵硬气体可渗透(RRGP)18看的接触透镜和休息在与的组2特殊设计了僵硬气体可渗透(SRGP)接触透镜。角膜的房间形态学用在没有透镜扫描共焦的显微镜的一个裂缝被评估穿并且在接触透镜在组1穿的接触透镜wearing.RESULTSAfter1y的1y以后，吝啬的前面、以后的stromalkeratocyte密度是显著地少些(P=0.006和P=0.001，分别地)与没有透镜相比穿。前面、以后的stromalkeratocyte的吝啬的房间区域也是显著地不同的(P=0.005和P=0.001)从没有透镜穿。前面、以后的stromal薄雾增加了18.74%和23.81%，分别地在接触透镜穿的1y以后。而在组2，统计上重要的变化仅仅在房间密度与前面的基质的区域被观察(P=0.001和P=0.001，分别地)在1y以后。当时，前面、以后的stromal薄雾的水平在接触透镜穿的1y以后增加了16.67%和11.11%。Polymegathism和多形性也在接触透镜groups.CONCLUSIONConfocal显微镜学观察显示出的接触透镜在两个穿的1y以后增加了在在特别穿隐形眼镜的keratoconic角膜的角膜的房间形态学的重要改变组织1。接触透镜的类型必须小心地被选择在角膜的房间形态学最小化变化。

简介：AIM:Todescribetheresultsof5consecutivecasesofclearlensextractioninangleclosurepatientsforthetreatmentofelevatedintraocularpressure(IOP).·METHODS:Retrospectiveobservationalcaseseries.Allangleclosurepatientswereontwoormoretopicalglaucomamedicationsandhadpriorlaseriridotomy.Eyesunderwentclearlensextractionbyphacoemu-lsificationwithintraocularlensimplantation.·RESULTS:Allfivepatientsinthiscaseseriescarriedthediagnosisofangle-closureglaucomaandhaduncontrolledIOPpriortosurgerydespitetopicalmedications.AfterclearlensextractionthreeofthecaseshadgoodIOPcontrol(IOP<22mmHg)withouttheneedfortopicalmedications.InonecasetheIOPwasbettercontrolledaftersurgery,however,topicalmedicationswererequired.ThedesiredIOPwasnotmetinonecasedespiterestartingmaximumtopicaltherapy.·CONCLUSION:Thiscaseseriessuggeststhattheremaybearolefortherapeuticclearlensextractioninselectcasesofangle-closureglaucoma.

简介：Opticalpumpingofsolid-statelasersinducesathermallenseffectinthelasercrystal;thisthermaleffectdeterminesthebeamproperties.Inthispaper,thefocallengthofthethermallensiscalculated,andresonatorparameter(glg2)isobtained,whichisinsensitivetothermaldistortionswhentheproductoftheresonatorparameters(gl,g2)equals1/2.Byusingourcalculatedresults,wegetthefundamentaltransversemodelaseroutputwithoptic-opticconversionof48.6%,andslopeefficiencyof56.3%.

简介：ＤｅｖｅｌｏｐｍｅｎｔｏｆＨＶＰｏｗｅｒＳｕｐｐｌｙｆｏｒＥｘｔｒａｃｔｉｏｎｏｆｉｏｎＳｏｕｒｃｅａｎｄＳｉｎｇｌｅＬｅｎｓ￥ＸｕＺｈｅｎｇｊｉａａｎｄＺｕＫａｉｌｉｎｇＴｈｅ５０ｋＶｄｉｒｅｃｔｈｉｇｈｖｏｌｔａｇｅｒｅｇｕｌａｔｅｄｐｏｗｅｒｓ...

简介：TheeffectofdifferentkindsofsurfactantsontheextractionprocessofNileBlue-I-wasinvestigatedbylaserthermallensspectrometry.Itwasshownthatthesurfactantscouldaccelerateordeceleratetheextractionratebyvaryingtheextractive’ssolubilityandtheinterfacialtensionoftheextractionsolution.Thehighertheconcentrationofsurfactantswas,themoreobvioustheeffect.

简介：Metasurfaceshavebecomeanewphotonicstructureforprovidingpotentialapplicationstodevelopintegrateddeviceswithsmallthickness,becausetheycanintroduceanabruptphasechangebyarraysofscatterers.Tobeappliedmorewidely,activemetasurfacedevicesarehighlydesired.Here,atunableterahertzmeta-leuswhosefocallengthisabletobeelectricallytunedby-4.45λisdemonstratedexperimentally.Thelensconsistsofametallicmetasurfaceandamonolayergraphene.Duetothedependenceoftheabruptphasechangeofthemeta-surfaceonthegraphenechemicalpotential,whichcanbemodulatedusinganappliedgatevoltage,thefocallengthischangedfrom10.46to12.24mmwhenthegatevoltageincreasesfrom0to2.0V.Experimentalresultsareingoodagreementwiththetheoreticalhypothesis.Thistypeofelectricallycontrolledmeta-lenscouldwidentheapplicationofterahertztechnology.