Kodi magalasi anapangidwa liti?
Ngakhale kuti magwero ambiri amanena kuti magalasi anapangidwa mu 1317, lingaliro la magalasi liyenera kuti linayamba kale mu 1000 BC Mabuku ena amanenanso kuti Benjamin Franklin anapanga magalasi, ndipo pamene anapanga magalasi a bifocal, woyambitsa wotchukayu sanganenedwe kuti anapanga magalasi mkati. wamba.
M'dziko lomwe anthu 60 pa 100 aliwonse amafunikira magalasi owongolera kuti awone bwino, ndizovuta kulingalira nthawi yomwe magalasi analibe.
Ndi zipangizo ziti zomwe poyamba zinkagwiritsidwa ntchito popanga magalasi?
Maonekedwe a magalasi a maso amawoneka mosiyana pang'ono ndi magalasi omwe timawawona lero - ngakhale zitsanzo zoyambirira zimasiyana chikhalidwe ndi chikhalidwe.
Oyambitsa osiyanasiyana anali ndi malingaliro awoawo amomwe angawongolere masomphenya pogwiritsa ntchito zida zina. Mwachitsanzo, Aroma akale ankadziwa kupanga magalasi ndipo ankagwiritsa ntchito zinthu zimenezi popanga magalasi awoawo.
Ofufuza a ku Italy posakhalitsa anazindikira kuti miyala ya kristalo imatha kupangidwa kukhala yopingasa kapena yopingasa kuti ipereke zinthu zosiyanasiyana zooneka kwa anthu amene ali ndi vuto losaona.
Masiku ano, magalasi agalasi nthawi zambiri amakhala pulasitiki kapena magalasi ndipo mafelemu amatha kupangidwa ndi zitsulo, pulasitiki, matabwa komanso khofi (ayi, Starbucks sakugulitsa magalasi - osati).
Kusintha kwa magalasi
Magalasi oyambirira a maso anali ochuluka amtundu umodzi, koma sizili choncho lero.
Chifukwa anthu ali ndi mitundu yosiyanasiyana ya zolemala -myopia(kuwoneratu),hyperopia(kuona patali),astigmatism,amblyopia(diso laulesi) ndi zina zambiri - magalasi agalasi osiyanasiyana tsopano akonza zolakwika izi.
Izi ndi zina mwa njira zomwe magalasi amapangidwira ndikuwongolera pakapita nthawi:
Bifocals:Ngakhale magalasi owoneka bwino amathandizira omwe ali ndi myopia ndimagalasi a concaveolondola hyperopia ndi presbyopia, panalibe yankho limodzi lothandizira iwo omwe anavutika ndi mitundu yonse ya kuwonongeka kwa masomphenya mpaka 1784. Zikomo, Benjamin Franklin!
Trifocals:Patatha zaka theka atapangidwa ma bifocals, ma trifocal adawonekera. Mu 1827, John Isaac Hawkins anapanga magalasi omwe amathandiza anthu odwala kwambiripresbyopia, vuto la masomphenya lomwe nthawi zambiri limakhudza zaka 40. Presbyopia imakhudza luso la munthu loyang'ana pafupi (mamenyu, makadi opangira maphikidwe, mauthenga).
Magalasi a polarized:Edwin H. Land anapanga magalasi a polarized mu 1936. Anagwiritsa ntchito fyuluta ya polaroid popanga magalasi ake. Polarization imapereka mphamvu zotsutsana ndi glare komanso kutonthoza kowoneka bwino. Kwa iwo omwe amakonda chilengedwe, ma lens opangidwa ndi polarized amapereka njira yosangalalira ndi zosangalatsa zakunja, mongakupha nsombandi masewera am'madzi, powonjezera kuwoneka.
Magalasi opita patsogolo:Monga bifocals ndi trifocals,magalasi opita patsogolokukhala ndi mphamvu zambiri zamagalasi kwa anthu omwe ali ndi vuto lowona bwino patali. Komabe, zotsogola zimapereka mawonekedwe oyera, osasokonekera popita patsogolo pang'onopang'ono mumphamvu pamagalasi aliwonse - tsazikani, mizere!
Magalasi a Photochromic: Magalasi a Photochromic, omwe amatchedwanso ma lens osinthika, amadetsedwa ndi kuwala kwa dzuwa ndikukhala bwino m'nyumba. Magalasi a Photochromic adapangidwa m'zaka za m'ma 1960, koma adadziwika kumayambiriro kwa zaka za m'ma 2000.
Magalasi otchinga abuluu:Popeza makompyuta adakhala zida zodziwika bwino zapakhomo m'zaka za m'ma 1980 (osatchula ma TV zisanachitike ndi mafoni a m'manja pambuyo pake), kulumikizana kwazithunzi za digito kwafala kwambiri. Poteteza maso anu ku kuwala koyipa kwa buluu komwe kumatuluka pazithunzi,magalasi owala a buluuzingathandize kupewa kupsinjika kwa maso a digito ndi zosokoneza pakugona kwanu.
Ngati mukufuna kudziwa mitundu yambiri ya magalasi, chonde onani masamba athu apahttps://www.universeoptical.com/stock-lens/.