Plano-ConvexLensiswidelyuseinopticaldisplaysystems,projectionopticssystems,imaginingopticalsystems,andlasermeasurementsystems.Itisbestusewhereconjugatepoint--objectdistance,SorimagedistanceS'ismorethanfivetimesoftheother.Thislensisalmostthemostsuperformforbothcollimatingapointsourceandfocusingcollimatedlight;Plano-Conc***eLenshasanegativefocallengthandistypicallyusedtocauseacollimatedbeamtodivergeasinaGalileantypebeamexpanderorTelescope.BecausethesphericalaberrationofthePlano-Conc***eisnegative,itcanbeusedtobalancetheaberrationofotherlenses.Thislensiswidelyuseinopticaldisplaysystems,projectionopticssystems,imagingandlasermeasureemntsysterms;Double-ConvexLens,alsonamedBi-ConvexLens,ismostsuitablewheretheobjectandimageareonoppositesidesofthelensandtheratiooftheimageandobject(conjugateratio)distancesisbetween0.2to5.Itisusedinbeamexpanders,.Projectionopticssystems,opticalviewersetc;Double-Conc***eLens,alsonamedBi-Conc***eLens,isusedtodivergentlight.TheBi-Conc***eisbestusedwhentheinputbeamisconverging.Itisusedinbeamexpanders,.Projectionopticssystems,opticalviewersandopticalcharaterreadersetc;MeniscusLenscanincreasetheNAofthesystemwhileonlyaddingslightlytothetotalsphericalaberrati***.TheNegativeMeniscusLensisusedtoincreasethefocallengthofanotherlenswhilemaintainingtheangularresolutionoftheopticalassembly.Thislensshapeisbestusedwhenoneconjugateisrelativelyfarfromthelens.Wesupplyopticalsphericallenses,includeplano-convexsphericallens,plano-conc***esphericallens,bi-convexsphericallens,bi-conc***esphericallens,meniscussphericallens,specialsphericallensetc..Specificationofourplano-convexsphericallensesasfollow:*Material:BK7orothermaterials*Focallength:+/-1%*Centerthicknesstolerance:+/-0.01mm*Centration:1arcminutes*SurfaceFigure:lambda/2at633nmonplanoside*Surfacequality:40/20stratch/dig*ClearApenture>90%*ChamferProtective:0.25mmat45degreetypical*Coating:optional)