Lens kapena asphere (yomwe nthawi zambiri imatchedwa ASPH pazidutswa zamaso) ndi lens yomwe mawonekedwe ake apamwamba sali mbali za bwalo kapena silinda.Maonekedwe a asphere ovuta kwambiri amatha kuchepetsa kapena kuthetsa kufalikira kwa mlengalenga komanso kumachepetsanso mawonekedwe ena owoneka ngati astigmatism, poyerekeza ndi mandala osavuta.Lens imodzi ya aspheric nthawi zambiri imatha kulowa m'malo mwa ma lens ovuta kwambiri.Chipangizo chotsatiracho ndi chaching'ono komanso chopepuka, ndipo nthawi zina chotsika mtengo kuposa kapangidwe ka ma lens ambiri.Zinthu za aspheric zimagwiritsidwa ntchito popanga ma lens okhala ndi mbali zambiri komanso mwachangu kuti achepetse kusokonekera.Amagwiritsidwanso ntchito limodzi ndi zinthu zowunikira (catadioptric systems) monga aspherical Schmidt corrector plate yomwe imagwiritsidwa ntchito mu makamera a Schmidt ndi ma telescopes a Schmidt-Cassegrain.Ma aspheres ang'onoang'ono opangidwa nthawi zambiri amagwiritsidwa ntchito pophatikiza ma laser diode.Magalasi a aspheric nthawi zina amagwiritsidwa ntchito ngati magalasi.Magalasi am'maso a aspheric amalola masomphenya owoneka bwino kuposa magalasi a "mawonekedwe abwino kwambiri", makamaka poyang'ana mbali zina kuposa malo opangira ma lens.Kuphatikiza apo, kuchepetsa kukulitsa kwa lens kungathandize ndi mankhwala omwe ali ndi mphamvu zosiyana m'maso a 2 (anisometropia).Osakhudzana ndi mawonekedwe a kuwala, amatha kupereka lens yocheperako, komanso kupotoza maso a owonera mochepera momwe amawonera ndi anthu ena, kutulutsa mawonekedwe abwinoko.
2.Spherical vs aspherical lens

Magalasi owoneka bwino a aspherical amagwiritsa ntchito ma curve osiyanasiyana kudutsa pamwamba pake kuti achepetse kuchuluka ndikuwapangitsa kukhala osalala pamawonekedwe awo.Magalasi ozungulira amagwiritsira ntchito njira yokhotakhota imodzi mumbiri yawo, kuwapangitsa kukhala osavuta koma okulirapo, makamaka pakati pa mandala.
3.Aspheric Phindu
Mwina chowonadi champhamvu kwambiri chokhudza asphericity ndikuti masomphenya kudzera m'magalasi a aspheric ali pafupi ndi masomphenya achilengedwe.Mapangidwe a aspheric amalola ma curve okhazikika kuti agwiritsidwe ntchito popanda kusokoneza magwiridwe antchito.Kusiyana kwakukulu pakati pa mandala ozungulira ndi ozungulira ndikuti mandala ozungulira amakhala ndi kupindika kumodzi ndipo amapangidwa ngati basketball.Lens ya aspheric imapindika pang'onopang'ono, ngati mpira womwe uli pansipa.Magalasi a aspheric amachepetsa kukulitsa kuti awonekere mwachilengedwe ndipo makulidwe ochepera apakati amagwiritsa ntchito zinthu zochepa, zomwe zimapangitsa kuti thupi likhale lochepa.