Kwindawo yokuyila, uyilo lweelensi luhlelwe ngokuyintloko kwiindidi ezimbini: i-spirical kunye ne-aspheric. I-Aspheric Lenses, iqhutywa kukusukela ukuqaqamba, kunyanzeliswa ukutshintsha kwelensi kwilensi yelensi, ukungcungcutheka kwi-curvature yelensi yemveli. Uyilo lwe-scherical, indawo eqhelekileyo ngaphambili, yathwaxwa yi-arberces enyukayo kunye nokugqwetha. Oku kuhlala kuphumelela kwimiba ebibhengezwe ngemifanekiso eqingqiweyo, umbono owosiweyo, kunye nendawo yokujonga.
Ngoku, uyilo lwe-Aspheric luye lwavela njengamandla okulungisa, ukujongana nokugqwetha okubonakalayo ngokufanelekileyo nokubonelela ngesisombululo esibonelela ngeelensi ezingabi lula kwaye sineflenethi kodwa i-titruner kodwa ikwayithethile. Ngokubalulekileyo, le nkqubela ayizithobeliyo i-len 'yokunganyangeki kwempembelelo ebalaseleyo, iqinisekisa amava akhuselekileyo anxibayo.
I-lenses yemveli yemveli inomdaniso obonakalayo-Izinto ezijongiweyo ezijikeleze i-periphery yelensi iguqukile, isebenzela imbonakalo yendawo yokuphelisa. Kwiminyaka yobudala apho itekhnoloji ngokuqhubekayo, iilensi ze-aspheric - i-marvel yokwenyani - inciphise ii-ables kwi-lestoras kwi-len, ichithe kakhulu intsimi yembono yokufikelela kwiimfuno zabathengi. I-lenseric lensed ibonisa ijika elisiseko kwaye likhaphukhaphu, ukuphucula isibheno sendalo kunye nobuhle. Ingakumbi kwiimeko zamandla aphezulu aqabuleyo, zinciphise ukugqwetha ngamehlo, zibenzela ukhetho olufanelekileyo kubathengi abaneemfuno eziphakamileyo zikagqirha.
Inqaku elichazayo leelensi ze-aspheric yindawo yazo ekhethekileyo yokuphumla. Lowo uyilo lwe-aspheric unika izibonelelo ezininzi kwiilensi zemveli:
1. I-1.Clacrey: Iphathwe ngenkqubo ekhethekileyo yokudibana, iilensi ze-aspheric zibonelela ngemizekelo yokubonwayo, eqinisekisa ukuba ujonga ngokucacileyo amava acocekileyo nangokufanelekileyo.
2.Ukulungiswa, ke kukhanya baphantse bangamafuthe, iilensi ze-aspheric zinciphisa "ubunzima 'emehlweni akho, zivumela ukunxiba kunye nokungagungqi.
Umbono we-3.natural: Uyilo lwabo lwe-aspheric lunciphisa ukugqwetha okubonakalayo, kukhokelela kwimbono efanelekileyo nechanekileyo.
Ukuthelekisa iilensi ze-fherical kunye ne-aspheric zezinto ezifanayo kunye nonyango, iilensi ze-aspheric ziphuma njengeeflethi, incinci, kwaye zinike amava anokwenyani kwaye athobekileyo. Ukujonga ubume beelensi zokuhlambela ngokuchasene nomthombo wokukhanya kutyhila ukuba ukubonakalisa iilensi ze-spherical ngokubanzi (ngaphandle kweelensi enkulu); Iilensi ze-aspheric, nangona kunjalo, zibonisa i-curvature enkulu ngenxa yokuqubha izinto ezahlukeneyo kumphezulu wazo.
Imiphetho ye-Peipheral yeelebhu zemveli ayibonakali nje kuphela kodwa ikwagqwetha kwaye ijijeke imbono yezinto, i-phenomenon eyaziwa ngokuba yingozi yomfanekiso. Ukufezekisa uyilo olukhanyisiweyo, izixhobo ze-Indes eziPhambili zisetyenzisiwe kwimveliso ye-lens. Ngaphezu koko, xa ijongwa ngelensi ye-spherical, i-Debler ye-Debler igqwethekileyo. Iilensi ze-aspheric, ngokwahlukileyo, zinciphisa zombini iziko kunye nobungqingqwa, okukhokelela kwilensi ye-slimmer esusa i-onrations ye-peipheral, ngenxa yoko inika amava abonakalayo endalo.
I-lenseric lenser ibonelela ngendawo ebanzi nengafakwanga ibala lemiphetho, enomfanekiso omncinci, enikezela imifanekiso ekhethekileyo yendalo. Ezi lens zinzima kathathu kunee-overparts zayo, zibenza balungele ngokukhethekileyo kubantu abancinci. Ngomyalelo ofanayo -5.00ds ugqirha, iilensi ze-aspheric ziipesenti ezingama-26% ubude kune-lenses spherical. Umphezulu wabo ogcweleyo uqinisekisa umbono wehlabathi, ongenankathalo yehlabathi, kufutshane nakwezini, ukunciphisa ukudinwa kwamehlo ixesha elide.
Eyona nto ifanelekileyo kwabasitshutshise ngaphesheya kwamehlo yokuqala, ngakumbi abafundi kunye nabasebenzi beofisi, iilensi ze-aspheric, iilensi ze-aspheric zinciphisa ukungaphumeleli kweglasi. Ikwayindlela elungileyo yokunxibelelana nabasebenzisi be-lens, esebenza njengeliso lamehlo e-backup ekhaya. Iilensi ze-aspheric iilensi zisondeleyo umbono wendalo, i-akin kumava ngeelensi zonxibelelwano. Baphelele kwabo bakhetha ukuthoba iyeza labo eliphezulu, banqwenela ukuphepha ukubonakala kwamehlo amancinci ngeglasi ye-myopia, bafuna ukuphakamisa ubunzima beelensi zabo, okanye baneemfuno ezahlukeneyo zemali.
Iilensi ze-aspheric zinokunika i-lenses ye-vierium ye-vied kunye nembonakalo efihlakeleyo njengeelensi eziphakamileyo zesalathiso, ukunciphisa umda wokulinganisa i-ables kunye nokupheka kwibala lemigqaliselo elizanelisayo zonke iimfuno zabathengi.
IXESHA LOKUQALA: UJan-04 ukuya ku-024