Qinisekisa ukuba ubeka ingqalelo kwizinto zokukhanya kwesikrini. Ngokuqhelekileyo ezenziwe ngu:
- Iglasi. Impendulo yeli bakala yintlupheko kunye nobunzima bayo. Ngoko ke, abakhuselekile kwamehlo. Iingenelo: ukukhanya okuphezulu kunye neepropati ezibonakalayo eziphezulu, ukukhawuleza.
- Plastics. Ezi zi-acrylic, polycarbonate kunye ne-polyurethane lens. Iilazi ezinama-lenses anjalo zilula, zihlala zihlala zikhuselekileyo, zikhuselekile, zize zingadlulanga imilayezo ye-ultraviolet kunye ne-infrared. Nangona kunjalo, ukuhlutha kunye nemijelo ibonakala ngokukhawuleza kubo.
Indlela yokukhetha ama-glass of glass?
Kunconywa ukuba ukhethe iilazi ezinokucoca malunga ne-99-100% yama-UV emisebe ene-length long to 400 nm (kufuneka ibhalwe nge-UV 400). Kodwa ngokuphindaphindiweyo kukho izikhanyiso zelanga kunye ne-index ye-UV 380, ebuyisela ama-95% emisebe ye-ultraviolet. Kule meko, iilensi ezinemibala emnyama ayifaki ukucoca i-ultraviolet ngokufanelekileyo ngaphezu kokukhanya.
Ngamanye amaxesha kunenye indlela-abafundi abavela kwiilensi zamnyama bakwandisa ngakumbi, kwaye ukukhanya okungaphezulu kwe-ultraviolet kungena ngaphakathi kwamehlo.
Ukukhanya okubonakalayo (okubonwa ngamehlo omntu) kudluliselwa ngama-lensi yelanga ukuya kuma-80-100% (angenambala kunye nombala omncinci) ukuya kwi-3-8% (ngokugqithiseleyo mnyama).
Ngokuxhomekeka kwezi zikhombisi, khetha amanqaku phantsi kweemeko zemozulu, phantsi kwazo oza kuzinxiba.
Ukukhethwa kwemibala yezibuko zelanga kuxhomekeke kwiminqweno yakho kunye nefashoni. Nangona kunjalo, cinga ukuba imibala emnyama kunye nemnyama yamalensi ayiguquli umbala wemibala, kwaye imdaka, eluhlaza, i-orange iphazamisa.
Ezinye iimo kunye neentlobo zezibuko zelanga
Zininzi iintlobo zeglasi, kuxhomekeke kwifomu kunye nenjongo.
Umntu ngamnye - ifomu nganye yeglasi ikhethwe. Ukubonakalisa ukuma kobuso bakho, hlanganisa iinwele emva kwaye uzibuke kwisibuko okanye uthathe umfanekiso. Ngoko unako uqikelele umgca wayo: ujikeleze, u-oval, isikwere, unxantathu.
- Ii-aviator zezibuko zelanga, okanye amaconsi , - imodeli eneentsimbi ezinkulu ezinobumba obunobumba obuncinci lwesinyithi. Ekuqaleni baqulunqiwe kubaqhubi, oku kuchaza igama. Ngoku iiglasi ezinjalo zibhekwa njengesisiseko sokuqala, esiveliswa ngeendlela ezahlukeneyo malunga nabo bonke abavelisi. Ubuncedo be-aviators kukuba baya kusondela nawuphi na umfazi phantsi kweengubo.
- Izikrini zokujikeleza ezijikelezayo (isitayela se-retro) siya kukhangeleka ubuso befomati, tk. Baya kubonakala bekhawuleza imigca ebukhali ye-chin kunye ne-cheekbones. Kwakhona kwiilazi ezinje, ngokukodwa ezinkulu, amantombazana anomfanekiso wesimo se-oval akhangeleka kakuhle. Le fomu yomtya ifunyaniswa kwiintlobo ezahlukeneyo: kwisakhelo esinyeneyo nesincinci, kunye neelensi ezimnyama okanye ezifihliweyo. Zama ukuzama iiglasi kwisakhelo esijikelezayo, ngokukodwa ekubeni izibuko zelanga zale fomu ziphinde zifake imfashini.
- Kwizibuko zelanga ngaphandle komtya, iingalo zifakwe ngqo kwiilensi. Abanikazi bebunzi bomeleleyo bayacetyiswa ukuba bakhethe iiglasi, inxalenye engenasiphelo esingenaso isakhelo. Abasetyhini abanebunzi ebanzi banakho ukuyifihla ngeglasi ngaphandle kwesakhelo esisezantsi.
- Kwizemidlalo, khetha iindawo zokukhanya zemiidlalo ekhethekileyo. Bamele bahlaziye, baqine, bavelele, banikeze umthunzi ofanelekileyo, kwaye ba khusele amehlo kwiimpembelelo zomoya, uthuli, amanzi. Ngako oko iiglasi zezemidlalo zibophekile ukuba zibonelele ngokuphononongwa kwakhona. Kweminye imidlalo, ukulungiswa kakuhle kwamaphuzu entloko kuyadingeka, ngoko kuya kwenziwa nge-strap strap endaweni yezixhobo.