Iilensi zabanye abantu zikhangeleka zibhlowu, ezinye zimfusa, kwaye ezinye ziluhlaza.Kwaye iiglasi ezibhlowu zokuvala ukukhanya ezicetyiswayo kum zityheli.Ke kutheni iilensi zokuthintela ukukhanya zijika zibe tyheli?
Ukuthetha ngokubona, ukukhanya okumhlophe kunemibala esixhenxe yokukhanya, yonke into eyimfuneko.Ukukhanya okuluhlaza okwesibhakabhaka yinxalenye ebalulekileyo yokukhanya okubonakalayo, kwaye indalo ngokwayo ayinakho ukukhanya okumhlophe okwahlukileyo.Ukukhanya okuluhlaza kudibanisa nokukhanya okuluhlaza kunye nokukhanya okutyheli ukubonisa ukukhanya okumhlophe.Ukukhanya okuluhlaza kunye nokukhanya okutyheli kunamandla amancinci kwaye akucaphuki kangako emehlweni, ngelixa ukukhanya okuluhlaza okwesibhakabhaka kunobude obufutshane obufutshane kunye namandla aphezulu, acaphukisa ngakumbi amehlo.
Ukusuka kwindawo yokujonga umbala, i-lens yokukhanya e-anti-blue iya kubonisa umbala othile, kwaye ukubonakaliswa okugxininisiweyo kukuphuzi okukhanyayo.Ngoko ke, ukuba i-lens engenambala iyabhengeza ukuba iyakwazi ukuxhathisa ukukhanya okuluhlaza okwesibhakabhaka, isisidenge.Kuba ukuhluzwa kokukhanya okuluhlaza kuthetha ukuba ispectrum esamkelweyo ngamehlo ayiphelelanga xa kuthelekiswa nembonakalo yendalo, ke kuya kubakho ukuphambuka kwechromatic, kwaye ubungakanani bechromatic aberration ixhomekeke kuluhlu lombono lomntu ngamnye kunye nomgangatho welensi ngokwayo.
Ngoko ke, ngaba i-lens emnyama ingcono?Enyanisweni, akunjalo.Iilensi ezicacileyo okanye ezimthubi ezimnyama azinakukuthintela ngokufanelekileyo ukukhanya okuluhlaza, ngelixa iilensi ezikhanyayo ezityheli zinokuthintela ukukhanya okuluhlaza ngaphandle kokuchaphazela indlela yokukhanya eqhelekileyo.Le ngongoma inokungahoywa ngokulula ngabahlobo abaninzi xa kuthengwa iiglasi zokukhanya ezichasene neblue.Khawucinge nje, ukuba ngaphezu kwe-90% yokukhanya okuluhlaza okwesibhakabhaka kuvaliwe, oko kuthetha ukuba awukwazi ukubona ukukhanya okumhlophe, ngoko unokwahlula ukuba kulungile okanye kubi emehlweni?
Umgangatho welensi uxhomekeke kwisalathiso se-refractive, i-dispersion coefficient, kunye nemigangatho yemisebenzi eyahlukeneyo.I-index ye-refractive ephezulu, i-lens encinci, i-dispersion ephezulu, i-dispersion ecacileyo, kunye neengqimba ezihlukeneyo ziyi-anti-ultraviolet, ukukhanya kwe-anti-blue kwesikrini se-elektroniki, i-anti-static, uthuli, njl.
Iingcali zithi: “Imitha yokukhanya okuluhlaza kukukhanya okubonakalayo okunamandla amakhulu okunobude obuziinanometer ezingama-400-500, okona kukhanya kunamandla ekukhanyeni okubonakalayo.Ukukhanya okuluhlaza okunamandla aphakamileyo kuyingozi ngokuphindwe kayi-10 emehlweni kunokukhanya okuqhelekileyo.”Oku kubonisa amandla okukhanya okuluhlaza.Inkulu kangakanani!Emva kokufunda ngeengozi zokukhanya okuluhlaza, umhleli naye waya kunxiba iindondo zokukhanya ezichasene nombala oluhlaza, ngoko ke iindondo zomhleli nazo zajika zatyheli!
Ixesha lokuposa: Apr-19-2022