Kwindawo yoyilo lwe-optical innovation, uyilo lwe-lens luhlelwa ngokukodwa kwiindidi ezimbini: i-spherical kunye ne-aspheric. Iilensi ze-aspheric, eziqhutywa kukufuna ukubhitya, zifuna inguqu kwi-lens curvature, ziphambuka kakhulu ukusuka kwigophe lomphezulu lelensi yesiqhelo. Uyilo olungqukuva, olwaluqhelekile ngaphambili, lwathwaxwa kukungaphambuki nokugqwetheka okwandileyo. Oku kudla ngokukhokelela kwimiba ecacileyo efana nemifanekiso engacacanga, umbono ogqwethekileyo, kunye nommandla olinganiselweyo wokujonga.
Ngoku, uyilo lwe-aspheric luye lwavela njengamandla okulungisa, ukujongana nolu kuphazamiseka okubonakalayo ngokufanelekileyo kunye nokubonelela ngesisombululo esinika iilensi ezingabizi nje kuphela kwaye zincinci kodwa zifana neflethi. Okubalulekileyo, ezi nkqubela phambili azibeki esichengeni ukuxhathisa okubalaseleyo kweelensi, kuqinisekisa amava okunxiba akhuselekileyo.
Iilensi eziqhelekileyo ezingqukuva zinecala elisezantsi eliphawulekayo - izinto ezijongwe kumda welensi zibonakala zigqwethekile, zithintela umbono womntu ozinxibileyo. Kwixesha apho itekhnoloji iguquka ngokuqhubekayo, iilensi ze-aspheric - ummangaliso wokwenyani wokubona - zinciphisa ukuphambuka kumda welensi, zandisa kakhulu ibala lokujonga ukuhlangabezana neemfuno zabathengi. Iilensi ze-aspheric zinesiseko segophe kwaye zikhaphukhaphu, ziphucula umtsalane wendalo kunye nobuhle. Ngokukodwa kwiimeko zamandla aphezulu e-refractive, banciphisa ngobuchule ukugqwethwa kwamehlo, bebenza ukuba babe lolona khetho lufanelekileyo kubathengi abaneemfuno eziphezulu zomyalelo.
Uphawu oluchazayo lweelensi ze-aspheric kukugoba kwazo okukhethekileyo komphezulu. Olu yilo lwe-aspheric lubonelela ngeengenelo ezininzi ngaphezulu kweelensi zesiqhelo ezingqukuva:
I-1.Ukucaca: Ukuphathwa ngenkqubo ekhethekileyo yokugqoka, iilensi ze-aspheric zibonelela ngokusebenza okubonakalayo okungumzekelo, ukuqinisekisa ukubonwa okucacileyo kunye nokukhululekile.
2.Intuthuzelo: Ke ukukhanya ziphantse zingabonakali, iilensi ze-aspheric zinciphisa 'ubunzima' emehlweni akho, zivumela ukunxitywa okukhululekile kunye nokulula.
3.Umbono weNdalo: Uyilo lwabo lwe-aspheric lunciphisa ukugqwesa okubonakalayo, okukhokelela ekuboneni okubonakalayo kunye nokuchanekileyo.
Ukuthelekisa iilensi ezingqukuva kunye ne-aspheric zemathiriyeli efanayo kunye nomyalelo, iilensi ze-aspheric zigqama njengezicaba, zincinci, kwaye zibonelela ngamava abonakalayo kwaye akhululekile. Ukujonga imilo yelensi ngokuchasene nomthombo wokukhanya kuveza ukuba iilensi ezingqukuva ziqhelekile ngokuthe tye (ngaphandle kweelensi zamandla ezibonakeleyo eziphezulu); iilensi ze-aspheric, nangona kunjalo, zibonisa ukugoba okukhulu ngenxa yeegophe ezahlukeneyo kumphezulu wazo.
Imiphetho yeperipheral yeelensi zesintu ezingqukuva ayibonakali ijiyile nje kuphela kodwa ikwagqwetha kwaye ijija imbonakalo yezinto, into eyaziwa ngokuba yi-image aberration. Ukufezekisa uyilo olukhaphukhaphu, izixhobo zesalathisi eziphezulu ze-refractive ziye zaqeshwa ekwenzeni iilensi. Ngaphezu koko, xa ijongwa ngeelensi ezingqukuva, inkangeleko yobuso yalowo uyinxibileyo ibonakala igqwethekile. Iilensi ze-aspheric, ngokuchaseneyo, zinciphisa zombini iziko kunye nobukhulu bomphetho, okukhokelela kwilensi ebhityileyo esusa ukuphambuka kwe-peripheral, ngaloo ndlela inikezela ngamava okubonwa kwendalo.
Iilensi ze-aspheric zibonelela ngommandla obanzi kunye nongagotywanga wokujonga emaphethelweni, kunye nokuphazamiseka komfanekiso omncinci, unikezela imifanekiso ngokwendalo. Ezi lens zinzima ngokuphindwe kathathu kunezo zingqukuva, nto leyo ezenza ukuba zifaneleke ngakumbi kubantu abancinci abanxibayo. Ngendlela efanayo -5.00DS kagqirha, iilensi ze-aspheric zikhaphukhaphu nge-26% kunee-spherical lens. Umphezulu wazo othe tyaba uqinisekisa umbono wendalo, ongagqwethwanga wehlabathi, kufutshane nakude, kunciphisa ukudinwa kwamehlo ixesha elide.
Ilungele abantu abaqala ukunxiba iiglasi zamehlo, ngakumbi abafundi kunye nabasebenzi baseofisini, iilensi ze-aspheric zinciphisa kakhulu ukungonwabi kokuqala okuhambelana nokunxiba iindondo. Zikwayeyona ndlela ibalaseleyo kubasebenzisi beelensi zoqhagamshelwano, esebenza njengeeyewear ezigcinayo ekhaya. Iilensi ze-aspheric zixelisa ngokusondeleyo umbono wendalo, ngokufana namava ngeelensi zoqhagamshelwano. Bafanelekile abo bakhetha ukuthoba umyalelo wabo ophezulu, banqwenela ukuphepha ukubonakala kwamehlo amancinci ngeeglasi ze-myopia, bafune ukunciphisa ubunzima beelensi zabo, okanye banezidingo ezahlukeneyo zokuhlaziya iliso ngalinye.
Iilensi ze-aspheric zinokunika iilensi zesalathiso ze-refractive eziphakathi ngokufanayo kunye nenkangeleko ethe tyaba njengee-lens ze-refractive index ephezulu, ukunciphisa ukuphambuka komphetho kunye nokubonelela kwindawo ebanzi yokujonga eyanelisa zonke iimfuno zabathengi.
Ixesha lokuposa: Jan-04-2024