1, Izinto kanye Izigaba
Ngokwezinto ezibonakalayo, zingahlukaniswa zibe izinhlobo ezine: ingilazi, i-PC, i-resin namalensi emvelo.Okusetshenziswa kakhulu yi-resin.
I-Spherical and aspherical: ikakhulukazi ukukhuluma ngamalensi aspherical, inzuzo yamalensi aspherical ukuthi ukuhlanekezela konqenqema lens kuncane kakhulu.
Ngale ndlela, i-lens inesithombe esihle, akukho ukuphazamiseka, kanye nenkundla ecacile yokubuka.
Futhi ngaphansi kwezinto ezifanayo kanye nezinga, amalensi aspherical ayisicaba futhi mancane kunamalensi ayindilinga.
Amadigri kanye ne-Refractive Index
Ngokuvamile, kunconywa ukukhetha i-lens enenkomba ephezulu ye-refractive.Uma iphezulu inkomba ye-refractive, i-lens iba mncane.
Kodwa naka inkinga, okungukuthi, ukuphakama kwenkomba ye-refractive, umthelela enombolweni ye-Abbe, ungalandeli ngobumpumputhe inkomba ye-refractive, ukuhlaziya okuqondile kwezinkinga ezithile.
2. Inombolo ye-Abbe kanye ne-coating
Okubizwa ngokuthi i-coefficient ye-Abbe, eyaziwa nangokuthi i-coefficient yokuhlakazeka, ivame ukubizwa ngokuthi unqenqema lwezibuko ukuze ubone into eseduze neso lomuntu ngaphandle komphetho onsomi, umphetho ophuzi kanye nonqenqema oluluhlaza okwesibhakabhaka.Ngokuvamile, lapho inkomba ye-refractive ye-medium iba nkulu, yilapho ukuhlakazeka kubi kakhulu, okungukuthi, inombolo ye-Abbe iyancipha.Lokhu futhi kuphendula isizathu sokuthi kungani kushiwo ngenhla ukuthi inkomba ye-refractive akufanele ilandelwe ngokungaboni.
(Qotha ebhodini: Indawo efanayo yokubona inezinkomba ezihlukene zokukhanyela amaza amaza okukhanya ahlukene. Isibonelo, ukuphindaphinda kokukhanya kwelanga nge-prism kuzobonisa imibala eyisikhombisa yokukhanya, okuwukwenzeka kokuhlakazeka.)
Okulandelayo, ake sikhulume ngokunameka kwelensi.I-lens enhle izoba nezingqimba eziningana zokugqoka.
Isikhunta esiphezulu asikwazi ukungena emanzini futhi singenawo uwoyela;ifilimu elimelene ne-reflection livumela ukukhanya okwengeziwe:
Ifilimu yokukhipha i-electrostatic yenza uthuli kungabi lula ukulumunca;ifilimu eqinile ingavikela i-lens futhi ikwenze kungabi lula ukuklwebheka nokunye.
3. Ilensi esebenzayo
Uma sikhuluma iqiniso, mayelana nokusebenza kwamalensi.
Ngaphinde ngacabanga ukuthi kwakungachazeki ngaphambili, i-lens ayikona ukusiza i-myopia ukuthi ibone izinto ngokucacile, imisebenzi eminingi kangaka ivelaphi?Kakhulu, ngazi kuphela ukuthi kukhona amalensi anokukhanya okuluhlaza okwesibhakabhaka, kuze kube yilapho sengihlole ulwazi oluningi (Nkosi, ngibonile!)
Kuvele ukuthi inezigaba eziningi!Nakuba ngingasakhumbuli ngemva kokuyifunda)
Nokho, ukuze i-athikili iphelele, kwanqunywa ukuba ilungiswe.
Ilensi yokukhanya e-Anti-blue:Lokhu akudingi ukwethulwa kakhulu.Njengoba igama liphakamisa, ingadlala indima yokukhanya okuluhlaza okwesibhakabhaka.Ifaneleka kakhulu kubangani abavame ukubheka omakhalekhukhwini namakhompyutha.
B Ilensi ye-multifocal eqhubekayo:Lolu hlobo lwelensi lusho ukuthi kunamaphuzu amaningi okugxilwe kuwo kulensi eyodwa, futhi izinto ezikumabanga ahlukene zingabonakala kahle ngokuguqulwa kwebanga lokubona.Okusho ukuthi, le lensi ingaba nokukhanya okuhlukile okudingekayo ukuze ubone ibanga elide, ibanga eliphakathi nendawo kanye nebanga eliseduze ngesikhathi esisodwa.
- Inezigaba ezintathu:
- ifilimu yeminyaka ephakathi kanye neyabadala (izibuko zokufunda): Lena kufanele kube yiyona evame kakhulu.Ifanele kokubili i-myopia ne-presbyopia.
- Amalensi okulawula i-myopia yentsha - asetshenziselwa ukunciphisa ukukhathala okubukwayo nokulawula isivinini sokukhula kwe-myopia.Ilensi “yomfundi omuhle” ingenye enjalo.
- b Amalensi abantu abadala abalwa nokukhathala - abahleli bohlelo nabanye abangani abavame ukubhekana namakhompyutha.Ngamanye amazwi, imizwa eminingi ingeyenduduzo yengqondo kuphela.Into ebaluleke kakhulu ukuhlanganisa umsebenzi nokuphumula, nokuphumula okufanele.
- c Amalensi ahlakaniphile ashintsha umbala.Uma uhlangabezana nokukhanya okunamandla kwe-ultraviolet, kuzoba mnyama ngokuzenzakalelayo futhi kuvimbe ukukhanya okunamandla kwe-ultraviolet ngaphandle.Uma ubuyela endaweni emnyama njengasendlini, izokhanya ngokuzenzakalelayo ukuze kuqinisekiswe ukucaca kombono.
Isikhathi sokuthumela: Jan-17-2022