Magirazi emaziso akanyatsogadzirwa rini?
Kunyange zvazvo zvinyorwa zvakawanda zvichitaura kuti magirazi emaziso akagadzirwa muna 1317, pfungwa yegirazi inogona kunge yakatanga kare 1000 BC Mamwe mabhuku anotiwo Benjamin Franklin akagadzira magirazi, uye kunyange akagadzira bifocals, mugadziri ane mukurumbira uyu haagoni kurumbidzwa nekugadzira magirazi mukati. general.
Munyika umo 60% yehuwandu inoda imwe nzira yekururamisa lenzi kuti vaone zvakajeka, zvakaoma kufungidzira nguva iyo magirazi emaziso akange asipo.
Ndezvipi zvinhu zvakamboshandiswa kugadzira magirazi?
Mafungiro emhando dzemagirazi emaziso anotaridzika akati siyanei pane erapi magirazi atiri kuona nhasi - kunyangwe mamodheru ekutanga akasiyana kubva kutsika netsika.
Vagadziri vakasiyana vaive nemafungiro avo ekuvandudza kuona vachishandisa zvimwe zvinhu.Somuenzaniso, vaRoma vekare vaiziva kugadzira magirazi uye vaishandisa zvinhu izvozvo kugadzira magirazi avo emaziso.
Vagadziri veItaly vakakurumidza kuziva kuti rock crystal yaigona kuitwa convex kana kuti concave kuti ipe zvinhu zvinooneka zvakasiyana kune avo vane hurema hwakasiyana hwekuona.
Nhasi, magirazi egirazi remaziso anowanzo purasitiki kana girazi uye mafuremu anogona kugadzirwa nesimbi, epurasitiki, huni uye kunyange kofi nzvimbo (kwete, Starbucks haisati yatengesa magirazi - haisati yave zvakadaro).
Kushanduka kwemagirazi emaziso
Magirazi ekutanga emaziso aive akawanda emushonga mumwe chete, asi hazvisizvo nhasi.
Nekuti vanhu vane marudzi akasiyana ekuremara kwekuona -myopia(kuona pedyo),hyperopia(kuona kure),astigmatism,amblyopia(ziso rine usimbe) uye nezvimwe - akasiyana girazi lenzi zvino gadzirisa izvi zvikanganiso zve refractive.
Aya anotevera ndedzimwe nzira dzakagadzirwa nemagirazi nekuvandudzwa nekufamba kwenguva:
Bifocals:Nepo maconvex lenzi anobatsira avo vane myopia uyeconcave lenziyakarurama hyperopia uye presbyopia, pakanga pasina mhinduro imwe chete yekubatsira avo vakatambura nemhando mbiri dzekukanganiswa kwekuona kusvika 1784. Thanks, Benjamin Franklin!
Trifocals:Hafu yezana remakore mushure mekugadzirwa kwebifocals, trifocals yakatanga kuonekwa.Muna 1827, John Isaac Hawkins akagadzira lens aishandira avo vane hutsinyepresbyopia, Chimiro chechiratidzo chinowanzorova mushure memakore 40. Presbyopia inokanganisa kukwanisa kwemunhu kuona-pedyo (mamenyu, makadhi erecipi, mameseji).
Polarized lenses:Edwin H. Land akagadzira polarized lenses muna 1936. Akashandisa polaroid sefa paaigadzira magirazi ake.Polarization inopa anti-glare masimba uye yakavandudzwa yekuona kunyaradza.Kune avo vanoda zvisikwa, polarized lenses inopa nzira yekunakidzwa zvirinani zvekunakidzwa zvekunze, sengekubata hoveuye mitambo yemvura, nekuwedzera kuonekwa.
Progressive lenzi:Kunge bifocals uye trifocals,ma lenzi anofambira mberivane akawanda lens masimba kune vanhu vane dambudziko rekuona zvakajeka pamadaro akasiyana.Nekudaro, zvinofambira mberi zvinopa kuchenesesa, kutarisisa kwakawanda nekufambira mberi zvishoma nezvishoma musimba kune imwe neimwe lenzi - kwakanaka, mitsetse!
Photochromic lenzi: Photochromic lenzi, iyo inonziwo transitions lenses, inosviba muchiedza chezuva uye inogara yakachena mumba.Photochromic lenzi dzakagadzirwa muma1960, asi dzakave dzakakurumbira mukutanga kwe2000s.
Blue light blocking lenzi:Sezvo makomputa akave midziyo yemumba yakakurumbira muma1980 (tisingarevi maTV zvisati zvaitika uye ma smartphones mushure), kupindirana kwedhijitari skrini kwave kwakanyanya.Nekudzivirira maziso ako kubva kuchiedza chebhuruu chinokuvadza chinobuda mumasikirini,magirazi eblue lightinogona kubatsira kudzivirira dhijitari yeziso kushushikana uye kukanganisa mukutenderera kwako kwekurara.
Kana iwe uine zvaunofarira kuziva mamwe marudzi emalenzi, ndapota tarisa kuburikidza nemapeji edu panohttps://www.universeoptical.com/stock-lens/.