Zenziwa nini ngokwenene iindondo zamehlo?
Nangona imithombo emininzi ichaza ukuba iiglasi zamehlo zaqanjwa ngo-1317, ingcamango yeeglasi inokuba yaqala kwange-1000 BC Eminye imithombo ikwabanga ukuba uBenjamin Franklin waqulunqa iiglasi, kwaye ngelixa wenza i-bifocals, lo mqambi odumileyo akanakunikwa imbeko ngokudala iiglasi. jikelele.
Kwihlabathi apho i-60% yabemi idinga uhlobo oluthile lweelensi zokulungisa ukuze babone ngokucacileyo, kunzima ukuba nomfanekiso wexesha apho iindondo zamehlo zazingekho.
Zeziphi izinto ezazisetyenziswa ekuqaleni ukwenza iindondo?
Iimodeli zengqikelelo yeendondo zamehlo zijongeka ngokwahlukileyo kuneeglasi ezichazwe ngugqirha esizibona namhlanje - kunye neemodeli zokuqala zahluke ngokwenkcubeko ukuya kwinkcubeko.
Abaqambi abahlukeneyo babenemibono yabo malunga nendlela yokuphucula umbono usebenzisa izinto ezithile.Ngokomzekelo, amaRoma amandulo ayekwazi ukwenza iglasi yaye ayesebenzisa loo nto ukuze azenzele ezawo iindondo.
Abavelisi base-Italiya bakhawuleza bafunda ukuba ikristale yamatye inokwenziwa i-convex okanye i-concave ukuze ibonelele ngezinto ezahlukeneyo ezibonwayo kwabo banezithintelo ezahlukeneyo zokubona.
Namhlanje, iilensi zeglasi zamehlo zihlala ziyiplastiki okanye iglasi kwaye iifreyimu zingenziwa ngentsimbi, iplastiki, umthi kunye neendawo zekofu (hayi, i-Starbucks ayithengisi iiglasi-hayi okwangoku).
Ukuvela kweendondo zamehlo
Iindondo zokuqala bezisisicombululo esilingana nesinye, kodwa akunjalo namhlanje.
Ngenxa yokuba abantu baneentlobo ezahlukeneyo zokukhubazeka kokubona -myopia(ukubona kufutshane),ihyperopia(ukubona kude),i-astigmatism,amblyopia(iliso eliyonqenayo) kunye nokunye - iilensi zeglasi zamehlo ezahlukeneyo ngoku zilungisa ezi mpazamo ze-refractive.
Ezi zilandelayo zezinye zeendlela eziye zaphuhliswa kwaye zaphuculwa ngayo iiglasi ngokuhamba kwexesha:
Bifocals:Ngelixa iilensi zeconvex zinceda abo bane-myopia kunyeiilensi zeconcavei-hyperopia echanekileyo kunye ne-presbyopia, kwakungekho sisombululo esisodwa sokunceda abo babandezeleka kuzo zombini iintlobo zokuphazamiseka kombono kude kube ngu-1784. Enkosi, Benjamin Franklin!
Trifocals:Isiqingatha senkulungwane emva kokuveliswa kwe-bifocals, ii-trifocals zavela.Ngowe-1827, uJohn Isaac Hawkins wenza iilensi ezinceda abo banobunzimai-presbyopia, imeko yombono edla ngokubetha emva kweminyaka engama-40. I-Presbyopia ichaphazela amandla omntu okubona ngokusondeleyo (iimenyu, amakhadi eresiphi, imiyalezo ebhaliweyo).
Iilensi ezipholileyo:U-Edwin H. Land wenza iilensi zepolarized ngo-1936. Wasebenzisa isihluzo esine-polaroid xa esenza iindondo zakhe zelanga.I-polarization inika amandla okulwa ne-glare kunye nentuthuzelo ephuculweyo yokujonga.Kwabo bathanda indalo, iilensi zepolarized zibonelela ngendlela yokonwabela ngcono izinto zokuzonwabisa zangaphandle, njengeukulobakunye nemidlalo yamanzi, ngokunyusa ukubonakala.
Iilensi eziqhubelekayo:Njenge-bifocals kunye ne-trifocals,iilensi eziqhubekayobabe negunya lelensi ezininzi kubantu abanengxaki yokubona ngokucacileyo kumgama owahlukileyo.Nangona kunjalo, abaqhubela phambili babonelela ngococeko, inkangeleko engenamthungo ngakumbi ngokuthe ngcembe uqhubela phambili ngamandla kwilensi nganye - sala kakuhle, imigca!
Iilensi zePhotochromic: Iilensi zePhotochromic, ekwabizwa ngokuba ziilensi zenguqu, zibe mnyama ekukhanyeni kwelanga kwaye zihlale zicacile ngaphakathi.Iilensi zefotochromic zaqanjwa ngoo-1960, kodwa zaye zaduma ekuqaleni kweminyaka yoo-2000.
Iilensi zokuthintela ukukhanya okuluhlaza:Ukusukela oko iikhompyuter zaba zizixhobo zasekhaya ezidumileyo kwiminyaka yoo-1980 (singasathethi ke ngoomabonakude ngaphambi koko kunye nee-smartphones emva koko), ukusebenzisana kwesikrini sedijithali kuye kwaxhaphaka.Ngokukhusela amehlo akho kukukhanya okuluhlaza okuyingozi okuvela kwizikrini,iiglasi eziluhlaza okwesibhakabhakakunokunceda ukuthintela ubunzima bamehlo edijithali kunye nokuphazamiseka kumjikelo wakho wokulala.
Ukuba unomdla wokwazi iindidi ezininzi zeelensi, nceda ujonge amaphepha ethu aphahttps://www.universeoptical.com/stock-lens/.