Aspherical lens

Amanqaku eqhaqhwe ukuphuculwa ezininzi kunye notshintsho ekuhambeni kweminyaka, ukunceda ukusombulula iingxaki kunye nombono. Namhlanje kukho iintlobo ngeentlobo ukhetho zamanqaku kunye lenses ezahlukeneyo. Eyona ethandwayo - lens aspherical.

Early izama ukwenza lens hlobo zenziwa yi René Descartes kwi 1620s and Constantine Huygens ngo-1630. imilo yecandelo, Descartes yenziwa ukwenzela le njongo yaziwa ngokuba kwicandelo cartesian.

Smethwick Francis wadala ezikumgangatho ophezulu iziqalelo zokuqala aspherical lens, yaye abakhokheli Royal Society Februwari 27, 1667. Yaba teleskopu, kuquka lenses ezintathu aspherical.

Development lens yokuqala aspherical ukuba iindondo wothulelw Moritz von Roru. imveliso Mass kunye nokusetyenziswa lens ezinjalo kwaqala 50 ka kubulela kwinkulungwane wokugqibela nokukhululwa iikhamera zevidiyo lens aspheric zithandwa kakhulu ngenxa umgangatho ogqwesileyo ukurekhoda.

lens oluqhelekileyo iglasi kumphezulu egosogoso. Aspherical lens, kwelinye icala, abo benziwa iglasi ongangokugibisela okhethekileyo, yaye nangona kusafuneka kumphezulu egosogoso, akukho ukulenza ngokupheleleyo.

Le umahluko shape yenza kubo oluchanekileyo ngakumbi aberrations ezimbalwa ezibonwayo ngaphezu lenses ukulenza. Aspherical lens, ubukhulu becala kusetyenziswa iindondo, kodwa siphuhliswa kwiminyaka engama-30 edlulileyo ukuvelisa iifoto ophezulu ezikumgangatho njengoko umlinganiselo iikhamera ezincinane khamera.

Ngenxa yobukhulu ezincinane kunye abavelisi ophakathi ukubhitya kulula kakhulu ukuba ukunyenyisa imilo lens ukudala, nto leyo eyenza kube lula ukulungisa amandla woqondo lens nganye kwaye icacile.

Aspheric lenses zibiza ngaphantsi ezincinane kwe lens eqhelekileyo, kunye nomgangatho ukudlula abo ezenziweyo enembonakalo ukulenza.

Phakathi kolu hlobo lens kunye lensi aspherical cell kumphezulu ngaphambili okanye emva (indawo yesibini ungqukuva), kwaye aspheres kabini xa "flat", yaye yangaphandle umphezulu lwangaphakathi.

Aspherical lens iiglasi xa kuthelekiswa ukulenza ilifa kwiqela lokulungileyo:

- ecace ngokungaphaya kunye okuphangaleleyo intsimi lwembono wabulela egopheni lens obhityileyo evumela abanini ukuze ubone ngokucacileyo ngokucacileyo, ujonge nayiphi na inxalenye lens.

- ubugqwetha encinci ecaleni kwimida (aberration);

- mbono lemvelo izinto kunye nobukhulu isithuba (lens "ukukhenkcisa" akusenzi, "dibanisa" ayinyuki);

- kwehle ubunzima ngokunciphisa balo babulingana nesandla, enika ukulungiswa umbono ngaphandle lens ungqukuva obukhulu kakhulu ngumsina;

- kunciphise ubukhulu: kwiziko ilens kakuhle nje ukubhitya kwaye sokurhuqa kwi ngohlangothi sub-zero;

- akukho ubukhulu ubugqwetha iliso (kwande xa ujonge umntu izibuko).

Ngophuhliso okukhawulezileyo kobugcisa, lenses contact aspheric saka kule minyaka imbalwa idlulileyo. Baya ingenziwa ukuba impahla eqinileyo okanye bhetyebhetye, uyakwazi ukutshintsha umbala kunye ukubonakala iliso yabantu ukulungisa ezahlukeneyo ukuphazamiseka mbono. Enye ukuphazamiseka enjalo astigmatism, nto leyo edla yalungiswa ngokusebenzisa lenses aspherical.

Bona zincinane kwaye sokurhuqa ngaphezu lens rhoqo, kwaye oku kuchaza inxenye kutheni ibizwa ngokuba 'intlawulo' yaye kutheni amanani aphezulu.

Aspheric Lens ukubhitya, kwaye oku kuthetha ukuba naphaya ngcono ukuba ukohluka iliso nganye umnini kwigophe kwaye kuya kuphazamisana ngaphantsi kunye ezidanyazayo.

Bobubi olu hlobo lens na iindleko zazo eziphakamileyo ngenkqubo lemveliso nzima ngakumbi. Ukongeza, esinobukhulu encinci lens aspherical kuthetha ukuba zibekwe kufutshane ebusweni, nto leyo maxa wambi ebangela reflectance ebonakalayo ezivela macala omabini, leyo lupheliswe kuphela ngokusebenzisa ukutyabeka anti-ekhanyayo.