1. Umgomo wokutholwa kwe-lens UV transmittance
Isilinganiso sokudluliswa kwamalensi ezibuko zelanga asikwazi ukucutshungulwa njengesilinganiso esilula sokudluliswa kwe-spectral kubude begagasi ngalinye, kodwa kufanele sitholwe ngokuhlanganiswa okunesisindo kokudluliswa kwe-spectral ngokwesisindo samaza ahlukene.Iso lomuntu liwuhlelo olulula lokubona.Lapho kuhlolwa ikhwalithi yezibuko, ukuzwela kweso lomuntu emisebeni ekhanyayo yamaza wamaza ahlukene kufanele kucatshangelwe kuqala.Ngamafuphi, iso lomuntu liyazwela ekukhanyeni okuluhlaza, ngakho-ke ukudluliselwa kwebhande lokukhanya okuluhlaza kunethonya elikhulu ekudluliseni ukukhanya kwelensi, okungukuthi, isisindo sebhande lokukhanya okuluhlaza sikhulu;kunalokho, ngoba iso lomuntu alizwani nokukhanya okunsomi nokukhanya okubomvu, ngakho Ukudluliselwa kokukhanya okunsomi nokukhanya okubomvu kunomphumela omncane ekudluliselweni kokukhanya kwelensi, okungukuthi, isisindo sokukhanya okunsomi kanye nokukhanya okubomvu. ibhande lokukhanya elibomvu nalo lincane uma kuqhathaniswa.Indlela esebenzayo yokuthola ukusebenza kwamalensi e-anti-ultraviolet ukunquma ngobuningi nokuhlaziya ukudluliswa kwe-UVA ne-UVB spectra.
2. Imishini yokuhlola nezindlela
I-spectral transmittance tester ingasetshenziswa ukukala ukudluliswa kwezibuko zelanga endaweni ye-ultraviolet ukuze kutholwe ikhwalithi yokudluliswa kwe-ultraviolet yesampula.Xhuma imitha ye-spectral transmittance port ye-serial yekhompyutha, qala uhlelo lokusebenza, yenza ukulinganisa kwemvelo ku-23°C±5°C (ngaphambi kokulinganisa, kufanele kuqinisekiswe ukuthi ingxenye yokulinganisa ayinayo ilensi noma isihlungi), bese usetha ukuhlolwa. ububanzi be-wavelength ukuya ku-280～480 nm, bheka imisebe ye-ultraviolet yelensi ngaphansi kwesimo sokukhulisa ijika lokudlulisela.Ekugcineni, beka amalensi ahloliwe kumapulaki enjoloba okuhlola ukuze uhlole ukudluliswa kokukhanya (inothi: sula amalensi namapulagi erabha okuhlola ahlanzeke ngaphambi kokuhlola).
3. Izinkinga esilinganisweni
Ekutholeni izibuko zelanga, ukubalwa kokudluliselwa kwebhande le-ultraviolet kusebenzisa indlela elula yokulinganisa ukudluliswa kwe-spectral, okuchazwa ngokuthi isilinganiso sokudlulisa.Kusampula efanayo ehlolwayo, uma izincazelo ezimbili ze-QB2457 kanye ne-ISO8980-3 zisetshenziselwa ukulinganisa, imiphumela ye-ultraviolet waveband transmittance etholiwe ihluke ngokuphelele.Uma kukalwa ngokwencazelo ye-ISO8980-3, umphumela obaliwe wokudluliswa kwedatha kubhendi ye-UV-B ngu-60.7%;futhi uma kulinganiswa ngokwencazelo ye-QB2457, umphumela obaliwe wokudlulisela kubhendi ye-UV-B ngu-47.1%.Imiphumela yehluke ngo-13.6%.Kungabonakala ukuthi umehluko wezinga lereferensi uzoholela ngokuqondile kumehluko ezidingweni zobuchwepheshe, futhi ekugcineni uthinte ukunemba nenjongo yemiphumela yokulinganisa.Lapho ukala ukuhanjiswa kwemikhiqizo yezingubo zamehlo, le nkinga ayikwazi ukunakwa.
Ukudluliswa kwemikhiqizo yezibuko zelanga nezinto zelensi kuyahlolwa futhi kuhlaziywe, futhi inani elinembile litholwa ngokuhlanganiswa okunesisindo kokudluliswa kwe-spectral, futhi imiphumela yezinzuzo nezingozi zemikhiqizo yezibuko zelanga iyatholakala.Okokuqala, kuya ngokuthi impahla yelensi ingavimba imisebe ye-ultraviolet, i-UVA ne-UVB, futhi ingadlulisela ukukhanya okubonakalayo okwengeziwe ukuze kuzuzwe umsebenzi wokulwa nokucwayiza.Ukuhlola kubonise ukuthi ukusebenza kokudluliselwa kwamalensi e-resin kungcono kakhulu, kulandelwa amalensi engilazi, namalensi ekristalu yiwo amabi kakhulu.Ukusebenza kokudlulisa kwamalensi e-CR-39 phakathi kwamalensi eresin kungcono kakhulu kune-PMMA.
Isikhathi sokuthumela: Nov-10-2021