Ihlobo lifikile, iiyure zokukhanya kwelanga ziya zisiba nde kwaye nelanga liya liqina ngakumbi. Ukuhamba esitratweni, akunzima ukufumana ukuba abantu abaninzi banxiba iilensi zefotochromic kunangaphambili. Izibuko zelanga ze-Myopia yindawo yokukhula kwengeniso yeshishini lokuthengisa i-eyewear kwiminyaka yakutshanje, kwaye iilensi zefotochromic zisiqinisekiso sokunyamezela ukuthengiswa kwehlobo. Ukwamkelwa kweelensi ze-photochromic yimarike kunye nabathengi bavela kwiimfuno ezahlukeneyo ezifana nesitayile, ukukhuselwa ukukhanya kunye nokuqhuba.
Namhlanje, abantu abaninzi bayaqaphela umonakalo wemitha ye-ultraviolet esikhumbeni. I-sunscreen, i-parasols, i-caps ephezulu, kunye nemikhono yesilika yomkhenkce kufuneka ibe yinto efunekayo xa uhamba ehlotyeni. Umonakalo wemitha ye-ultraviolet emehlweni awunakuba ngokukhawuleza njengoko ulusu luhlanjululwa, kodwa ekuhambeni kwexesha, ukubonakaliswa okuthe ngqo kunokuba nemiphumo emibi kakhulu emehlweni.
UMGAQO WOKUTSHINTSHA IMIBALA: I-PHOTOCHROMMISM
Umbala welensi yefotokhromic uba mnyama ngaphandle, ufikelela kwimo efana neyeziglasi zelanga, kwaye inqaku lokubuyela kwindawo engenambala yangaphakathi kwaye ecacileyo inxulumene nombono we "photochromic", enxulumene nento ebizwa ngokuba yisilivere halide. Ngethuba lenkqubo yokuvelisa, abavelisi be-lens bongeza i-silver halide microcrystalline particles kwi-substrate okanye ifilimu yefilimu ye-lens. Xa ukukhanya okunamandla kukhanya, i-halide yesilivere iyancipha ibe yi-ion yesilivere kunye ne-halide ions, ithatha ininzi yokukhanya kwe-ultraviolet kunye nenxalenye yokukhanya okubonakalayo; xa ukukhanya okujikeleze kuba mnyama, i-ion zesilivere kunye ne-halide ion zivuselela i-halide yesilivere phantsi kokunciphisa i-copper oxide, kunye nombala we-lens uba khaphukhaphu de ubuyele kumbala kunye nokubonakala.
Ukutshintsha kombala weelensi zephotochromic ngokwenene kubangelwa luchungechunge lweempendulo zemichiza ezibuyiselwa umva. Ukukhanya (kubandakanya ukukhanya okubonakalayo kunye nokukhanya kwe-ultraviolet) nakho kudlala indima ebalulekileyo ekuphenduleni. Ngokwemvelo, iphinda ichaphazeleke ngamaxesha kunye nemozulu, kwaye ayisoloko igcina umphumo ozinzileyo kunye nohambelanayo wokutshintsha umbala.
Ngokuqhelekileyo, kwimozulu yelanga, imitha ye-ultraviolet yomelele, kwaye i-photochromic reaction yomelele, kwaye ubunzulu be-lens discoloration bunzulu ngokubanzi. Ngeentsuku ezinamafu, imisebe ye-ultraviolet iyancipha, kwaye ukukhanya akunamandla, kwaye umbala we-lens uya kuba lula. Ukongeza, njengoko iqondo lokushisa likhuphuka, umbala we-photochromic lens uya kuba lula kancinci; ngokuchaseneyo, xa iqondo lokushisa liyancipha, umbala we-photochromic lens uya kuba mnyama ngokuthe ngcembe. Oku kungenxa yokuba xa iqondo lobushushu liphezulu, i-ion zesilivere ezibolileyo kunye ne-halide ion ziya kuncitshiswa kwakhona phantsi kwesenzo samandla aphezulu ukwenza i-halide yesilivere, kwaye umbala we-lens uya kuba lula.
Ngokuphathelele iilensi zefotochromic, kukho le mibuzo ilandelayo eqhelekileyo kunye namanqaku olwazi:
1. INGABA IILENSI ZE-PHOTOCHROMIC ZIBA NOKUTHUMELA OKUBI KANYE/UKUCACA KUNEELENSI ZERHOXA?
Iilensi ze-photochromic zeteknoloji ephezulu ye-photochromic ayinakho umbala ongasemva, kwaye ukuhanjiswa kokukhanya akuyi kuba kubi ngaphezu kweelensi eziqhelekileyo.
2. KUTHENI IIILENSI ZE-PHOTOCHROMIC INGAWUTSHINTSHI UMBALA?
Ukutshintsha kombala we-photochromic lens inxulumene nezinto ezimbini, enye yimeko yokukhanya, kwaye enye yimeko yokutshintsha umbala (i-silver halide). Ukuba ayitshintshi umbala phantsi kokukhanya okunamandla kunye nokukhanya kwe-ultraviolet, mhlawumbi ngenxa yokuba umbala wayo wokutshintsha umbala utshatyalalisiwe.
3. INGABA UMPHUMELA WOKWENZIWA KOMKHALA WE-PHOTOCHROMIC LENSES UYA KUBA BIBI NGENXA YOKUSETYENZISWA IXESHA?
Njengayo nayiphi na i-lens eqhelekileyo, iilensi zefotochromic nazo zinobude bokuphila. Ukuba ubeke ingqalelo ekugcinweni, ixesha lokusetyenziswa liya kufikelela ngokubanzi kwiminyaka emi-2 ukuya kwemi-3.
4. KUTHENI IIILENSI ZEPHOTOCHROMIC ZITENDELA UKUBA MNYAMA EMVA KOKUZINXIBA IXESHA ELIDE?
Iilensi zefotochromic zimnyama ngombala emva kokunxitywa ixesha elide, kwaye azinakujikwa zibuyele ekuhleni ngenxa yokuba izinto ezitshintsha umbala kuzo azikwazi ukubuyela kwimeko yazo yantlandlolo emva kokutshintsha kombala, okukhokelela kumbala ongasemva. Esi siganeko sihlala sisenzeka kwiilensi ze-photochromic ezikumgangatho ophantsi, kodwa aziyi kwenzeka kwiilensi ezilungileyo ze-photochromic.
5. KUTHENI IILENSI EZIGWEVU ZIQHELEKILEYO KWIMAKETHI?
Iilensi ezingwevu zifunxa i-IR kunye ne-98% yemitha ye-UV. Inzuzo enkulu ye-gray lens kukuba ayiyi kutshintsha umbala wokuqala wendawo ngenxa ye-lens, ngokufanelekileyo ukunciphisa ukukhanya kokukhanya. Iilensi ezingwevu zinokufunxa nawuphi na umbala wombala ngokulinganayo, ngoko ke indawo yokubukela iya kuba mnyama kuphela, kodwa akuyi kubakho kuphambuka okucacileyo kwechromatic, ebonisa imvakalelo eyinyani neyendalo. Ukongezelela, igrey ngumbala ongathathi hlangothi, ofanelekileyo kuwo onke amaqela abantu, kwaye ithandwa kakhulu kwiimarike.
Ukuba ufuna ukwazi ngakumbi malunga nefashoni yeglasi kunye nothethwano lweshishini, nceda undwendwele iwebhusayithi yethu kwaye uqhagamshelane nathi nangaliphi na ixesha.
Ixesha lokuposa: Jul-25-2023