Yaushe da gaske aka ƙirƙira gilashin ido?
Kodayake yawancin majiyoyi sun bayyana cewa an ƙirƙira gilashin ido a shekara ta 1317, ra'ayin na gilashin na iya farawa tun daga shekara ta 1000 BC Wasu majiyoyi kuma suna da'awar cewa Benjamin Franklin ya ƙirƙira gilashin, kuma yayin da ya ƙirƙira bifocals, wannan sanannen mai ƙirƙira ba za a iya lasafta shi da ƙirƙirar gilashin ba. na gaba ɗaya.
A cikin duniyar da kashi 60% na yawan jama'a na buƙatar wani nau'i na ruwan tabarau masu gyara don gani a fili, yana da wuya a kwatanta lokacin da gilashin ido ba a kusa ba.
Wadanne kayan da aka fara amfani da su don yin tabarau?
Samfurin ra'ayi na gilashin ido suna ɗan bambanta da gilashin sayan magani da muke gani a yau - har ma da samfuran farko sun bambanta daga al'ada zuwa al'ada.
Masu ƙirƙira daban-daban suna da nasu ra'ayoyin don inganta hangen nesa ta amfani da wasu kayan.Alal misali, Romawa na dā sun san yadda ake yin gilashi kuma sun yi amfani da wannan kayan don ƙirƙirar nasu nau'in gilashin ido.
Masu ƙirƙira na Italiya ba da daɗewa ba sun fahimci cewa ana iya yin kristal ɗin dutsen koɗaɗɗe don samar da kayan aikin gani daban-daban ga waɗanda ke da nakasar gani daban-daban.
A yau, ruwan tabarau na gilashin ido yawanci filastik ne ko gilashi kuma ana iya yin firam ɗin da ƙarfe, filastik, itace har ma da wuraren kofi (a'a, Starbucks ba ya sayar da gilashin - ba tukuna ba).
Juyin Gilashin ido
Gilashin ido na farko sun kasance mafi girma-daya-daidai-duk mafita, amma tabbas ba haka lamarin yake ba a yau.
Domin mutane suna da nau'ikan nakasar gani daban-daban -myopia(kusan gani),hyperopia(hangen nesa),astigmatism,amblyopia(lazy ido) da ƙari - ruwan tabarau daban-daban na gilashin ido yanzu suna gyara waɗannan kurakurai.
Waɗannan su ne wasu hanyoyin da gilashin suka haɓaka kuma suka inganta akan lokaci:
Bifocals:Duk da yake convex ruwan tabarau taimaka wa masu fama da myopia daruwan tabarau concavedaidai hyperopia da presbyopia, babu wata mafita guda ɗaya da za ta taimaka wa waɗanda ke fama da nakasar gani iri biyu har zuwa 1784. Na gode, Benjamin Franklin!
Trifocals:Rabin karni bayan ƙirƙirar bifocals, trifocals ya shigo cikin ra'ayi.A cikin 1827, John Isaac Hawkins ya ƙirƙira ruwan tabarau waɗanda ke yi wa waɗanda ke da tsanani aikipresbyopia, yanayin hangen nesa wanda yawanci yakan faru bayan shekaru 40. Presbyopia yana rinjayar ikon mutum na gani kusa (menu, katunan girke-girke, saƙonnin rubutu).
Gilashin ruwan tabarau:Edwin H. Land ya ƙirƙiri lens ɗin polarized a 1936. Ya yi amfani da tace polaroid lokacin yin tabarau.Polarization yana ba da damar anti-glare da ingantacciyar ta'aziyyar kallo.Ga waɗanda ke son yanayi, ruwan tabarau masu banƙyama suna ba da hanya don jin daɗin abubuwan sha'awa na waje, kamarkamun kifida wasanni na ruwa, ta hanyar ƙara gani.
Lens na ci gaba:Kamar bifocals da trifocals,ruwan tabarau masu ci gabasuna da ikon ruwan tabarau da yawa ga mutanen da ke da matsalar gani a sarari a nesa daban-daban.Koyaya, masu ci gaba suna ba da mafi tsabta, kamanni mara kyau ta hanyar ci gaba da ƙarfi a hankali a kowane ruwan tabarau - ban kwana, layi!
ruwan tabarau na Photochromic: ruwan tabarau na Photochromic, wanda kuma ake magana da shi azaman ruwan tabarau na juyawa, duhu a cikin hasken rana kuma a bayyane a cikin gida.An ƙirƙira ruwan tabarau na Photochromic a cikin 1960s, amma sun shahara a farkon 2000s.
Blue haske toshe ruwan tabarau:Tun lokacin da kwamfutoci suka zama sanannun na'urorin gida a cikin 1980s (ba a ma maganar TV kafin wannan da wayowin komai da ruwan ba), hulɗar allo na dijital ta zama ruwan dare.Ta hanyar kare idanunku daga hasken shuɗi mai cutarwa wanda ke fitowa daga allo,blue haske tabarauzai iya taimakawa hana nau'in ido na dijital da rushewa a cikin yanayin barcin ku.
Idan kuna da sha'awar sanin ƙarin nau'ikan ruwan tabarau, da fatan za a duba ta cikin shafukanmu ananhttps://www.universeoptical.com/stock-lens/.