Omnye wemibuzo abantu abaninzi abayivayo xa befakela iilensi zabo kukuba, "Yeyiphi i-refractive index oyifunayo?"Ndiyakholelwa ukuba abantu abaninzi abaliqondi eli gama lobuchwephesha, masifunde ngalo namhlanje!
Abantu abaninzi kuluntu lwanamhlanje bakholelwa ukuba iindondo ezibiza kakhulu, kokukhona zingcono!Uninzi lweengcali zamehlo, zibamba le psychology yabathengi, zihlala zisebenzisa i-refractive index njengendawo yokuthengisa ukunyusa amaxabiso eeglasi ukuze bafumane inzuzo ephezulu yezoqoqosho.Oko kukuthi, i-index ye-refractive ephezulu, i-lens encinci, kwaye ixabiso libiza kakhulu!
Inzuzo ephambili yeelensi eziphezulu ze-refractive bubuncinci bazo.Abathengi ekukhetheni iilensi, kufuneka bakhethe ngokweedigri zamehlo ezahlukeneyo ukuze bahambelane nezabo, ukusebenza ngokugqwesileyo kwelensi, ukusukela ngokuyimfama kwesalathiso se-refractive ephezulu ayinqweneleki, ifanelekileyo yeyona nto ibalulekileyo!
Iilensi zamehlo ezilungileyo kufuneka zibhekiselele kwiilensi ezineempawu ezintle zokukhanya, ezibonakaliswa kukuhanjiswa okuphezulu, ukucaca okuphezulu, ukusasazeka okuncinci, ukumelana nokunxiba kakuhle, ukugquma okugqwesileyo kunye nomsebenzi olungileyo wokukhusela.
Ngokuqhelekileyo i-refractive index ye-lens ibandakanya i-1.49, 1.56, 1.61, 1.67, 1.74, 1.8, 1.9.
Ukusuka kwimbono yobuchwephesha ukukhetha isalathiso se-refractive ngokubanzi ngokuqwalasela oku kulandelayo:
1. Iqondo le-myopia.
I-Myopia inokohlulwa ibe yi-myopia epholileyo (ngaphakathi kwe-3.00 degrees), i-myopia ephakathi (phakathi kwe-3.00 kunye ne-6.00 degrees), kunye ne-myopia ephakamileyo (ngaphezu kwe-6.00 degrees).
Ngokubanzi UKUTHETHA UKUKHANYA KUNYE NE-MYOPIA ephakathi (ama-400 degrees ngaphantsi kwe) UKUKHETHA ISIKHOKELO SOKUBUYISA YI-1.56 Kulungile, (ama-300 degrees ukuya kuma-600 degrees) KU-1.56 OKANYE 1.61 ezi IINDLELA EZIMBINI zokhetho lwe-REFRACTIVE index, ama-600 degrees ngasentla angaqwalasela i-1.611 okanye i-refractive 1. ilensi.
I-index ye-refractive ephezulu iphezulu, i-refraction ngakumbi iyenzeka emva kokuba ukukhanya kudlule kwi-lens, kwaye i-lens incinci.Nangona kunjalo, i-index ye-refractive ephezulu iphezulu, i-dispersion phenomenon ibaluleke kakhulu, ngoko ke i-lens ephezulu ye-refractive index inenani eliphantsi le-Abbe.Ngamanye amazwi, xa i-refractive index iphezulu, i-lens iyancipha, kodwa xa ujonga izinto, ukukhanya kombala akutyebi kangako xa kuthelekiswa ne-1.56 ye-refractive index.Oku kukhankanyiweyo apha ngumahluko nje omncinane xa kuthelekiswa.Ngobuchwephesha bangoku, i-lens ene-high refractive index nayo igqwesileyo kumbono.Iilensi eziphezulu ze-refractive index zidla ngokusetyenziswa kuphela kumawakawaka amadigri.
2. Iimfuno zesifundo.
Ukukhethwa kwesalathiso se-refractive ngokwenqanaba le-myopia alukho ngokupheleleyo, kodwa kufuneka ludibaniswe nokukhethwa kwesakhelo kunye nemeko yangempela yeso ukwenza isigqibo.
Ngoku isidanga se-myopic siphezulu ngokubanzi, kwi-baidu's myopia emihlanu ukuya kwezintandathu, isalathisi esisezantsi se-refractive se-lens siya kuba ngqindilili, ubunzima obunxulumene buya kuba bukhulu ngakumbi, ngeli xesha, ukuba ukusukela iqondo elihle liphezulu, sicebisa ngaphezu kwe-1.61 refractive index, ngaphezu koko xa ukhetha isakhelo somfanekiso ukunqanda uhlobo lwebhokisi enkulu, ebanzi, iqondo leglasi lobuhle kunye nokuthuthuzela zilungile.
Isiphelo: UKUKHETHWA KWE-refractive index kufuneka kusekelwe kwiingcebiso ze-optometrist yobungcali, ngokwenqanaba le-myopia, ubungakanani befreyimu, iimfuno zobuhle, induduzo ebonakalayo, ubungakanani bokusetyenziswa kunye nezinye izinto ezibanzi, ezifanelekileyo zibaluleke kakhulu.
Ixesha lokuposa: Aug-26-2022