Likhalase tsa mahlo li qapiloe neng hantle?
Leha mehloli e mengata e bolela hore likhalase tsa mahlo li qapiloe ka 1317, mohopolo oa likhalase o kanna oa qala ho tloha ka 1000 BC Mehloli e meng e boetse e bolela hore Benjamin Franklin o qapile likhalase, 'me leha a qapile li-bifocal, moqapi enoa ea tummeng a ke ke a fuoa tlotla ea ho etsa likhalase ka kakaretso.
Lefatšeng leo ho lona 60% ea baahi ba hlokang mofuta o itseng oa lilense tse lokisang mahlo ho bona ka ho hlaka, ho thata ho nahana ka nako eo likhalase tsa mahlo li neng li se teng.
Qalong ho ne ho sebelisoa thepa efe ho etsa likhalase?
Mehlala e nahanang ea likhalase tsa mahlo e shebahala e fapane hanyane le likhalase tse ngotsoeng ke ngaka tseo re li bonang kajeno - esita le mehlala ea pele e ne e fapana ho ea ka setso.
Baqapi ba fapaneng ba ne ba e-na le mehopolo ea bona ea ho ntlafatsa pono ba sebelisa thepa e itseng. Mohlala, Baroma ba boholo-holo ba ne ba tseba ho etsa khalase 'me ba sebelisa thepa eo ho iketsetsa mofuta oa bona oa likhalase tsa mahlo.
Baqapi ba Mataliana ba ile ba ithuta kapele hore kristale ea lefika e ka etsoa hore e be e kobehileng kapa e be e kobehileng ho fana ka lithuso tse fapaneng tsa pono ho ba nang le bokooa bo fapaneng ba pono.
Kajeno, lilense tsa mahlo hangata ke tsa polasetiki kapa khalase 'me liforeimi li ka etsoa ka tšepe, polasetiki, lehong esita le kofi (che, Starbucks ha e rekise likhalase - ha e so rekisoe leha ho le joalo).
Tsoelo-pele ea likhalase tsa mahlo
Likhalase tsa pele tsa mahlo e ne e le tharollo e lekanang le tsohle, empa ha ho joalo kajeno.
Hobane batho ba na le mefuta e fapaneng ea bokooa ba pono —myopia(ho se bone haufi),hyperopia(ho bona hole),astigmatism,amblyopia(leihlo le botsoa) le tse ling — lilense tse fapaneng tsa likhalase tsa mahlo joale li lokisa liphoso tsena tsa refractive.
Tse latelang ke tse ling tsa litsela tseo likhalase li ntlafetseng le ho ntlafala ka tsona ha nako e ntse e ea:
Li-Bifocal:Leha lilense tse kobehileng li thusa ba nang le myopia lelilense tse kobehilenghyperopia e nepahetseng le presbyopia, ho ne ho se na tharollo e le 'ngoe ea ho thusa ba neng ba e-na le mefuta ena ka bobeli ea bokooa ba pono ho fihlela ka 1784. Kea leboha, Benjamin Franklin!
Li-Trifocal:Lilemo tse mashome a mahlano ka mor'a ho qaptjoa ha li-bifocal, li-trifocal li ile tsa hlahella. Ka 1827, John Isaac Hawkins o ile a qapa lilense tse neng li sebeletsa batho ba nang le bothata ba ho ruruha.presbyopia, boemo ba pono bo atisang ho hlaha kamora dilemo tse 40. Presbyopia e ama bokgoni ba motho ba ho bona haufi (di-menu, dikarete tsa diresepe, melaetsa ya mongolo).
Lilense tse nang le polarized:Edwin H. Land o ile a etsa lilense tse nang le polarized ka 1936. O ile a sebelisa sefe ea polaroid ha a etsa likhalase tsa hae tsa letsatsi. Polarization e fana ka bokhoni ba ho thibela khanya le boiketlo bo ntlafetseng ba ho shebella. Bakeng sa ba ratang tlhaho, lilense tse nang le polarized li fana ka mokhoa oa ho natefeloa hamolemo ke lintho tseo u li ratang kantle, joalo kaho tšoasa litlhapile lipapali tsa metsing, ka ho eketsa ponahalo.
Lilense tse tsoelang pele:Joalo ka li-bifocal le li-trifocal,lilense tse tsoelang peleli na le matla a mangata a lense bakeng sa batho ba nang le bothata ba ho bona ka ho hlaka libakeng tse fapaneng. Leha ho le joalo, li-progressive li fana ka ponahalo e hloekileng le e se nang sekoli ka ho hatela pele butle-butle matla ho pholletsa le lense ka 'ngoe - salang hantle, mela!
Lilense tsa photochromic: Lilense tsa photochromic, tse boetseng li bitsoa lilense tsa phetoho, li fifala letsatsing 'me li lula li hlakile ka tlung. Lilense tsa photochromic li qapiloe lilemong tsa bo-1960, empa li ile tsa tuma mathoasong a bo-2000.
Lilense tse thibelang khanya e putsoa:Ho tloha ha dikhomphutha di se di tumme ka lapeng ka bo-1980 (re sa bue ka dithelevishene pele ho moo le difouno tse bohlale ka mora moo), tshebedisano ya di-screen tsa dijithale e se e atile haholo. Ka ho sireletsa mahlo a hao kganyeng e putswa e kotsi e tswang di-screenng,likhalase tsa mabone a maputsoae ka thusa ho thibela khatello ea mahlo ea dijithale le litšitiso potolohong ea hau ea boroko.
Haeba o na le thahasello ea ho tseba mefuta e mengata ea lilense, ka kopo sheba maqephe a rona mona.https://www.universeoptical.com/stock-lens/.