Ukukhethwa kwe-lens kunokuqwalaselwa kwiinkalo ezintathu: izinto eziphathekayo, umsebenzi kunye nesalathisi se-refractive.
impahla
Izinto eziqhelekileyo zezi: iilensi zeglasi, iilensi zeresin kunye neePC lens
Iingcebiso: ABANTWANA abasebenzayo, ngokuqwalasela ukhuseleko, ukhetho olungcono kakhulu lweelensi ze-resin okanye iilensi ze-PC, izigulane eziphezulu ze-myopia zazingcono ukukhetha iilensi zeglasi, abantu abadala banokukhethwa ngokwezinto ezinomdla, iimeko zoqoqosho ezifanelekileyo izixhobo ze-lens.
Iilensi zeglasi
Ubunzima obuphezulu, i-lens ayilula ukuvelisa imikrwelo, kodwa akukho bunzima, kulula ukuphuka xa kubethelwa;Ukukhanya okuphezulu, ukuhanjiswa kokukhanya kwe-92%;Ukusebenza kweekhemikhali ezizinzileyo, kunokuxhathisa impembelelo yazo zonke iintlobo zemozulu embi, kwaye ungabi mbala, ungafihli;Kodwa ubuthathaka, ubunzima obunzima, obungafanelekanga ukuba ulutsha lunxibe.
Iilensi ze-resin
Ukukhanya kakhulu kuneglasi, ukunciphisa uxinzelelo lomntu onxibileyo obangelwa sisibuko, ukhululekile ngakumbi;Ukuchasana kwempembelelo, akukho lula ukwaphula, nokuba iqhekezwe kwi-Angle obtuse, akukho ngozi emehlweni abantu;Inokudaywa kwimibala eyahlukeneyo, umsebenzi wenkungu ungcono kuneglasi;Kodwa i-lens yokunxiba i-lens ihluphekile, kulula ukuphuka, isalathisi esisezantsi se-refractive, ngokumalunga nephepha leglasi 1.2-1.3 amaxesha.
Iilensi zePC
Ukuqina okuqinileyo, akukho lula ukwaphula, ukuchasana kwempembelelo ephezulu, isalathisi esiphezulu se-refractive kunye nobunzima obucacileyo bokukhanya, ukunciphisa kakhulu ubunzima be-lens, i-100% yokukhusela i-UV, iminyaka emi-3-5 akukho phuzi;Kodwa ukucutshungulwa kunzima ngakumbi, kulula ukukrazula umphezulu, ukuzinza kwe-thermal akulunganga, ii-degrees eziyi-100 ziya kuba thambileyo.Iilensi zezinto zePC zisetyenziswa ngokubanzi kwiindondo zelanga, zibonakala kancinci kwisibuko se-optical, ezisetyenziswa kwiiglasi ezicaba.
umsebenzi
Imisebenzi eqhelekileyo ibandakanya: i-aspheric lens, i-spherical lens, i-sunshade lens, i-anti-blue light lens, i-anti-fatigue lens, i-lens eninzi egxininisekileyo, njl njl. Ngokobomi babo kunye nokusetyenziswa kohlobo lomsebenzi we-lens ohambelanayo.
Ilensi yomphezulu we-aspheric
I-aspheric lens idibanisa ukugxila.Iilensi ze-aspherical ziilensi ezinemitha yenqaku ngalinye kumphezulu emiselwa yi-equation ye-multiimage yodidi oluphezulu.Iradian yomphezulu wayo yahlukile kuleyo yelensi eqhelekileyo engqukuva, ngoko ke kuyimfuneko ukutshintsha umphezulu welensi ukuze ulandele ukubhitya kwelensi.Uyilo olungqukuva olusetyenziswe kwixa elidlulileyo lunyusa ukuphambuka kunye nokuguqulwa, okukhokelela kwimifanekiso ecacileyo engacacanga, i-horizon egqwethekileyo, umbono omxinwa kunye nezinye izinto ezingafunekiyo.Idizayini yangoku ye-aspheric ilungisa umfanekiso, isombulula ukuchithwa kwe-horizon kunye nezinye iingxaki, kwaye yenza i-lens ibe lula, ibe yincinci kwaye ibe yinto ecacileyo, eyenza umninimzi abe ngokwemvelo kwaye ehle.
Iilensi ezingqukuva
Ukuphambuka okungqukuva kweelensi ezingqukuva.Ilensi engqukuva yileyo apho amacala omabini elensi angqukuva, okanye elinye icala lingqukuva kwaye elinye lisicaba.Ngokubanzi ngqindilili, kwaye nge-lens ukubona izinto ezijikeleze ukugqwetheka, ukuguquka kunye nezinye izinto, ezibizwa ngokuba yi-aberration.Ngokujonga umntu onxibileyo ngelensi engqukuva, isenzeko soguquko lwecontour yobuso sinokufunyanwa ngokucacileyo.Iilensi ezingqukuva zihlala zingena ngaphantsi kwama-400 degrees.Ukuba idigri iphezulu, i-lens iya kuba nkulu kwaye uxinzelelo lwempumlo luya kuba lukhulu.Oku kukwasisithintelo kwiilensi ezingqukuva xa kuthelekiswa neelensi ze-aspheric.
Ngokubanzi, xa kuthelekiswa ne-aspheric lens, i-aspheric lens enemathiriyeli efanayo kunye nesidanga sithe tyaba, sincinci, sinokwenyani ngakumbi, sinokwendalo kwaye sikhululekile, esisombulula ingxaki yokuba ilensi yesangqa yesintu inokugqwetheka xa ujonga izinto ezijikelezileyo.I-lens yesiqhelo ye-spherical inciphisa intsimi yokubona yomntu onxibileyo, ngelixa i-lens ye-aspheric inciphisa i-edge aberration ukuya ezantsi, kwaye intsimi yayo ebanzi yokujonga inokwanelisa iimfuno ezininzi zabathengi.
Ilensi yokuthintela ukukhanya okuluhlaza
Iilensi ezibhlowu ezivalayo ziiglasi ezithintela ukukhanya okuluhlaza okwesibhakabhaka ukuba kungacaphukisa amehlo akho.Ikhusela amehlo kumonakalo wokukhanya okuluhlaza okwesibhakabhaka ngokuthintela kunye nokubonakalisa ukukhanya okuluhlaza okune-high-energy short-wave ngokusebenzisa iilensi zemathiriyeli ezikhethekileyo.Iiglasi ezikhanyayo eziluhlaza okwesibhakabhaka zifanelekile kubantu abadla ngokudlala ngeekhompyuter kunye neefowuni eziphathwayo.
I-sunshade lens
Ikwabizwa ngokuba yi-solar lens.Abantu elangeni bahlala bexhomekeke kubukhulu bomfundi ukulungelelanisa ukuhamba kokukhanya ukuphepha umonakalo oqinileyo wokukhanya kwiso.Ngokuqhelekileyo yahlulahlulwe yangamacandelo amathathu:
(1) Iilensi ezitshintsha umbala:
Isiphumo esiphambili kukukhusela amehlo kunye nokuthintela ukuvuselela ukukhanya okunamandla.Iilensi azinambala ngaphakathi, kodwa ziyatshintsha ukusuka ekungabinambala ukuya kombala xa zivezwe kukukhanya okumandla ngaphandle.Xa ukhetha imibala yeelensi ezitshintsha umbala, kuyacetyiswa ngokubanzi ukuba ukhethe imibala emithathu: i-tan, eluhlaza, kunye negrey.Ngenxa yokuba le mibala mithathu ihambelana ne-physiology ebonakalayo, iphucula ukungafani okubonakalayo kunye nokubukhali, kwaye ayiyi kutshintsha umbala wokuqala wendawo ngenxa yelensi.
(2) Iilensi ezinebala:
Ukuthintela ukuvuselela okunamandla kwelanga okubangelwa ngumonakalo wamehlo.Iilensi zidaywe ngemibala eyahlukileyo ngenkqubo ethile ukuhlangabezana neemfuno zeendawo ezibonakalayo ezahlukeneyo.Iilensi ezihlanjululweyo azifanelekanga ukusetyenziswa kwangaphakathi ngenxa yokuba zinokuphazamisa iziphumo ezibonakalayo.Ipleyiti yoMbala ENOKUBONELELA NGOKOMVELI NGOKUQHELEKILEYO, UMNTU NGAMNYE UFUMANA KWAYE ASEBENZISE IMEKO ESINGQONGILEYO UKUGQIBELA UKUKHETHA IMIBALA.
(3) Ukwacalula ilensi:
Ilensi evumela ukukhanya kuphela kwicala elithile lepolarization yokukhanya kwendalo ukuba kudlule.Ukunciphisa ukuphazamiseka okubonakalayo okubangelwa yi-glare, iyona nto ifanelekileyo kwimidlalo yangaphandle.Umzekelo: imidlalo yolwandle, i-skiing kunye nokuloba.
Ilens ekwazi ukumelana nokudinwa
Ilensi jikelele yokulwa nokudinwa yongeza +50 ~+60 idigri yokulungiswa komthwalo kwilensi ngokomgaqo wesiqwenga esiqhubekayo esifanayo, iphucula ukukhanya kwe-myopia, ibuyisela intshukumo ye-microwave kwindawo eqhelekileyo, ibuyisela ibhalansi yenkqubo yohlengahlengiso yeeglasi, kwaye ufezekise umsebenzi ngaphandle kokukhathala, ngaloo ndlela ufezekise "i-decompression" epheleleyo yamehlo.
Iilensi ezininzi zojoliso
Ikwabizwa ngokuba ilensi yojoliso emininzi eqhubekayo, kukwalatha kwilensi enye kuphela kwindawo kwaye phantse iphele indawo phakathi, kunye ne-diopta, utshintsho oluthe ngcembe ukusuka kude kunye nokusondela kancinci kancinci ekusebenziseni ufundo luya kukhanya kakhulu kwaye luphantse luphelelwe yi-organic. kunye, ngoko kwi-lens ngaxeshanye jonga umgama, umgama ophakathi kwaye uvale ukukhanya okufunekayo okwahlukileyo.
Isalathiso se-refractive
Iilensi ze-resin zihlala zine: 1.50, 1.56, 1.60, 1.67, 1.74 isalathisi sokuphindaphinda
Iilensi zeglasi eziqhelekileyo zine: 1.8 kunye ne-1.9 index refractive
Ngokubanzi, i-lens ene-refractive index ephezulu ivelisa i-lens encinci.Ngokuqinisekileyo, i-refractive index ayisiyiyo kuphela into emisela ubukhulu be-lens.Umgama womfundi kunye nobukhulu besakhelo nabo buchaphazela ubukhulu be-lens.Inkulu umgama womfundi, incinci isakhelo, i-lens encinci.Umzekelo, ukuba i-lens ye-1.56 nayo ikhethiwe, i-lens enomgama womfundi we-68mm incinci kakhulu kune-lens kunye nomgama womfundi we-58mm.Oku kungenxa yokuba okukhona i-lens isuka kwindawo ekugxilwe kuyo, kokukhona iya kuba ngqindilili.Jonga kwitheyibhile yokuthelekisa ukhetho olufanelekileyo lwe-lens ye-refractive index lens, ngokubanzi i-refractive index yexabiso le-lens nayo iphezulu, gwema ukhetho olungaboniyo lwe-lens ephezulu ye-refractive index.
Ixesha lokuposa: Sep-10-2022