Ihlobo selifikile, amahora okukhanya kwelanga aya eba made futhi nelanga liya ngokuya liqina. Ukuhamba emgwaqweni, akunzima ukuthola ukuthi abantu abaningi bagqoka amalensi e-photochromic kunangaphambili. Izibuko zelanga ze-Myopia ziyizinga elikhulayo lemali engenayo yemboni yokudayisa izingubo zamehlo eminyakeni yamuva nje, futhi amalensi e-photochromic ayisiqinisekiso sokubekezelela ukuthengiswa kwehlobo. Ukwamukelwa kwamalensi e-photochromic yimakethe nabathengi kuvela ezidingweni ezahlukahlukene ezifana nesitayela, ukuvikela ukukhanya nokushayela.
Namuhla, abantu abaningi bayaqaphela umonakalo wemisebe ye-ultraviolet esikhumbeni. Isikrini selanga, ama-parasol, amakepisi aphakeme, ngisho nemikhono ye-ice kasilika sekuyizinto okufanele ube nazo uma uphuma ehlobo. Ukulimala kwemisebe ye-ultraviolet emehlweni kungase kungabi ngokushesha njengoba isikhumba sishukwa, kodwa ngokuhamba kwesikhathi, ukuchayeka okuqondile kakhulu kungase kube nemiphumela emibi kakhulu emehlweni.
ISIMISO SOKUSHINTSHA IMIBALA: PHOTOCHROMMISM
Umbala welensi ye-photochromic uba mnyama ngaphandle, ufinyelele esimweni esifana nesezibuko zelanga, futhi isici sokubuyela endlini engenambala futhi esobala sihlobene nomqondo we-“photochromic”, ohlobene nento ebizwa nge-silver halide. Phakathi nenqubo yokukhiqiza, abakhiqizi be-lens bengeza izinhlayiya ze-silver halide microcrystalline ku-substrate noma ungqimba lwefilimu ye-lens. Lapho ukukhanya okunamandla kukhishwa imisebe, i-halide yesiliva ibola ibe ama-ion esiliva nama-halide ion, imunca iningi lokukhanya kwe-ultraviolet nengxenye yokukhanya okubonakalayo; lapho ukukhanya okuzungezile kuba mnyama, ama-ion esiliva nama-halide ions avuselela i-halide esiliva ngaphansi kokunciphisa i-copper oxide, futhi umbala welensi uba lula kuze kube yilapho ubuyela ekungabinambala futhi obala.
Ukushintsha kombala wamalensi e-photochromic empeleni kubangelwa uchungechunge lokusabela kwamakhemikhali okubuyisela emuva. Ukukhanya (okuhlanganisa ukukhanya okubonakalayo nokukhanya kwe-ultraviolet) nakho kunendima ebalulekile ekuphenduleni. Ngokwemvelo, iphinde ithinteke yizinkathi zonyaka nesimo sezulu, futhi ayigcini njalo umphumela wokushintsha umbala ozinzile futhi ongaguquki.
Ngokuvamile, esimweni sezulu esishisayo, imisebe ye-ultraviolet inamandla, futhi ukusabela kwe-photochromic kunamandla, futhi ukujula kokushintsha kombala kwelensi ngokuvamile kujulile. Ngezinsuku ezinamafu, imisebe ye-ultraviolet ibuthakathaka, futhi ukukhanya akunamandla, futhi umbala we-lens uzoba lula. Ngaphezu kwalokho, njengoba izinga lokushisa likhuphuka, umbala we-lens photochromic kancane kancane uzolula; ngokuphambene, lapho izinga lokushisa liyancipha, umbala we-photochromic lens kancane kancane uzoba mnyama. Lokhu kungenxa yokuthi lapho izinga lokushisa liphezulu, ama-ion esiliva abolile nama-halide ion azoncishiswa futhi ngaphansi kwesenzo samandla aphezulu ukuze enze i-halide yesiliva, futhi umbala we-lens uzolula.
Mayelana namalensi e-photochromic, kukhona imibuzo evamile elandelayo namaphuzu olwazi:
1. INGABE AMALENSI EZIPHOTOCHROMIC AZOBA OKUBI KAKHULU UKUDLULISANA KOKUKHANYA/UKUCACA KUNAMALENSI AJWAYELEKILE?
Amalensi we-photochromic wekhwalithi ephezulu ye-photochromic ayinawo umbala wangemuva, futhi ukudlulisa ukukhanya ngeke kube kubi kakhulu kunamalensi ajwayelekile.
2. KUNGANI AMALENSI E-PHOTOCHROMIC ENGASHINTSHI UMBALA?
Ukushintsha kombala wamalensi e-photochromic kuhlobene nezici ezimbili, enye yizimo ezikhanyayo, kanti enye iyisici sokushintsha umbala (i-silver halide). Uma ingashintshi umbala ngaphansi kokukhanya okunamandla nokukhanya kwe-ultraviolet, cishe kungenxa yokuthi isici sayo esishintsha umbala sicekeleke phansi.
3. INGABE UMPHUMELA WOKUGUQUKA AMALENSI E-PHOTOCHROMIC UZOBA BI KABI NGENXA YOKUSETSHENZISWA ISIKHATHI ESIDE?
Njenganoma iyiphi ilensi evamile, amalensi e-photochromic nawo anesikhathi sokuphila. Uma unaka ukugcinwa, isikhathi sokusebenzisa ngokuvamile sizofinyelela ngaphezu kweminyaka emi-2 kuya kwemi-3.
4. KUNGANI AMA-PHOTOCHROMIC LENS ETHANDA UKUBA mnyama EMVA KOKUWAGQOKA ISIKHATHI ESIDE?
Amalensi e-Photochromic anombala omnyama ngemva kokugqokwa isikhathi eside, futhi awakwazi ukuguqulwa ngokuphelele ukuze akhanye ngenxa yokuthi izici ezishintsha umbala kuwo azikwazi ukubuyela esimweni sawo sangempela ngemva kokushintsha kombala, okuholela kumbala ongemuva. Lesi simo sivame ukwenzeka kumalensi e-photochromic ekhwalithi embi, kodwa ngeke senzeka kumalensi amahle e-photochromic.
5. KUNGANI AMALENSI APHUMVU EVAMILE KAKHULU EZmakethe?
Amalensi ampunga amunca i-IR kanye nama-98% emisebe ye-UV. Inzuzo enkulu yelensi empunga yukuthi ngeke iguqule umbala wangempela wendawo ngenxa yelensi, inciphisa ngempumelelo ukukhanya kokukhanya. Amalensi ampunga angakwazi ukumunca noma iyiphi i-spectrum yombala ngokulinganayo, ngakho indawo yokubuka izoba mnyama kuphela, kodwa ngeke kube khona ukuphambuka okusobala kwechromatic, okubonisa umuzwa weqiniso nowemvelo. Ngaphezu kwalokho, grey umbala ongathathi hlangothi, ofanele wonke amaqembu abantu, futhi owaziwa kakhulu emakethe.
Uma ufuna ukwazi okwengeziwe mayelana nezitayela zemfashini yezibuko kanye nokubonisana nezimboni, sicela uvakashele iwebhusayithi yethu futhi usithinte noma nini.
Isikhathi sokuthumela: Jul-25-2023