I-aspheric lens noma i-asphere (evame ukubizwa ngokuthi i-ASPH ezicucu zamehlo) ilensi amaphrofayili ayo angaphezulu akuzona izingxenye zendilinga noma isilinda.Iphrofayili yendawo eyinkimbinkimbi kakhulu ye-asphere inganciphisa noma iqede ukujika okuyindilinga futhi iphinde yehlise nokunye ukujika okubonakalayo okufana ne-astigmatism, uma kuqhathaniswa nelensi elula.Ilensi eyodwa ye-aspheric ngokuvamile ingangena esikhundleni sesistimu yamalensi amaningi eyinkimbinkimbi.Idivayisi ewumphumela incane futhi ilula, futhi ngezinye izikhathi ishibhile kunomklamo wamalensi amaningi.Izakhi ze-aspheric zisetshenziswa ekwakhiweni kwama-lens anezici eziningi ezibanzi kanye namalensi avamile asheshayo ukuze kuncishiswe ama-aberration.Asetshenziswa futhi ekuhlanganisweni nezinto ezikhanyayo (amasistimu e-catadioptric) njenge-aspherical Schmidt corrector plate esetshenziswa kumakhamera e-Schmidt kanye nezibonakude ze-Schmidt–Cassegrain.Ama-aspheres amancane abunjiwe avame ukusetshenziselwa ukuhlanganisa ama-laser e-diode.Amalensi ase-aspheric nawo ngezinye izikhathi asetshenziselwa izibuko zamehlo.Amalensi engilazi yeso le-aspheric avumela ukubona okukhanyayo kunamalensi ajwayelekile “efomu elingcono kakhulu”, ikakhulukazi uma ubheka kwezinye izindawo kunesikhungo sokukhanya selensi.Ngaphezu kwalokho, ukuncishiswa komphumela wokukhulisa ilensi kungasiza ngemiyalelo enamandla ahlukene emehlweni angu-2 (anisometropia).Azihlobene nekhwalithi yokubona, zingase zinikeze ilensi ezacile, futhi zihlanekezele amehlo ombukeli kancane njengoba zibonwa abanye abantu, zikhiqize ukubukeka kobuhle obungcono.
2.Amalensi ayindilinga vs aspherical

Amalensi e-aspherical spectacle asebenzisa amajika ahlukahlukene endaweni yawo ukuze anciphise inqwaba futhi awenze acaba kuphrofayela yawo.Amalensi ayindilinga asebenzisa ijika elilodwa kuphrofayela yawo, awenza abe lula kodwa abe mkhulu, ikakhulukazi phakathi nendawo yelensi.
3.Aspheric Advantage
Mhlawumbe i-truism enamandla kakhulu mayelana ne-asphericity ukuthi umbono ngamalensi ase-aspheric kuseduze nombono wemvelo.Idizayini ye-aspheric ivumela amajika aphansi aphansi ukuthi asetshenziswe ngaphandle kokuphazamisa ukusebenza kokubona.Umehluko oyisisekelo phakathi kwe-lens eyindilinga kanye ne-aspheric ukuthi ilensi eyindilinga ine-curvature eyodwa futhi imise okwebhola lomnqakiswano.I-aspheric lens ijika kancane kancane, njengebhola elingezansi.I-aspheric lens inciphisa ukukhuliswa ukuze yenze ukubukeka kwemvelo kakhudlwana futhi ukujiya kwesikhungo esinciphile kusebenzisa impahla encane, okuholela esisindo esincane.