Izibuko zelangangokuvikelwa kwe-UV kungenxa yokwengezwa kwe-coating ekhethekile kumalensi, futhi izibuko zelanga ezingaphansi azikwazi nje kuphela ukuvimba imisebe ye-UV, kodwa futhi zinciphisa kakhulu ukudluliselwa kwamalensi, okwenza abafundi babe bakhudlwana, futhi imisebe ye-ultraviolet izojovwa ngobuningi. , okwenza umonakalo emehlweni..Ngakho namuhla,IVisioni-optical izokuyisa ukuthi uqonde: wazi kanjani ukuthi izibuko zelanga zivimbela ukumelana ne-UV?
Indlela 1. Bheka ilebula yezibuko zelanga.
Izimpawu ezibonakalayo njengokuthi "UV protection", "UV400", njll. zibonakala kumalebula noma kumalensi we-UV-resistantizibuko zelanga."I-UV index" ingumphumela wokuhlunga imisebe ye-ultraviolet, okuwumgomo obalulekile wokuthenga izibuko zelanga.Ukukhanya okunobude obungu-286nm-400nm kubizwa ngokukhanya kwe-ultraviolet.Ngokuvamile, inkomba ye-UV engu-100% ayinakwenzeka.Inkomba ye-UV yezibuko eziningi zelanga iphakathi kuka-96% no-98%.
Izibuko zelanga ezine-anti-ultraviolet zivame ukuba nezindlela ezilandelayo ezicacile:
a) Maka "UV400": lokhu kusho ukuthi ubude begagasi obunqunyiwe belensi kuya ekukhanyeni kwe-ultraviolet bungu-400nm, okungukuthi, inani eliphakeme elingu-τmax (λ) lokudluliswa kwe-spectral ku-wavelength (λ) ngaphansi kuka-400nm alikho ngaphezu 2%;
b) Maka "UV" kanye "nokuvikela kwe-UV": lokhu kusho ukuthi ubude begagasi obunqamukile belensi ukuya ku-ultraviolet bungu-380nm, okungukuthi, inani eliphakeme elingu-τmax(λ) lokudluliswa kwe-spectral kubude begagasi (λ) ngaphansi kuka-380nm akukho ngaphezu kuka-2%;
c) Maka "100% ukumuncwa kwe-UV": Lokhu kusho ukuthi ilensi inomsebenzi wokumuncwa okungu-100% kwemisebe ye-ultraviolet, okungukuthi, ukudluliswa kwayo okumaphakathi ebangeni le-ultraviolet akungaphezu kuka-0.5%.
Izibuko ezihlangabezana nalezi zidingo ezingenhla yizibuko ezivikela emisebeni ye-ultraviolet ngomqondo wangempela.
Indlela 2. Sebenzisa ipeni lemali ukuze uhlole ukuthi liyaqinisekisa yini
Uma zingekho izinsimbi, abantu abajwayelekile bangakwazi futhi ukubona ukuthi izibuko zelanga zinokuvikeleka kwe-UV.Thatha inothi, faka ilensi yezibuko zelanga ku-watermark emelene nomgunyathi, bese uthatha isithombe kwilensi ngomtshina wemali noma umtshina wemali.Uma usengabona i-watermark, kusho ukuthi izibuko zelanga azikwazi ukumelana ne-UV.Uma ungayiboni, kusho ukuthi Izibuko zelanga zivikelwe yi-UV.
Ukufingqa lokhu okungenhla: Indlela yesi-2 iwukuqinisekisa kweizibuko zelangailebula Ngendlela 1. Kungabonakala cishe ukuthi ilebula yomthengisi ilungile yini nokuthi izibuko zelanga zinokusebenza kwe-anti-ultraviolet.Lapho uthenga izibuko zelanga, ungazizama.Kuhlelo lokuthenga nokugqoka, uma unemibuzo, sicela upheqa ukuze uthole ulwazi olufanele.
Isikhathi sokuthumela: Jul-22-2022