Cov looj tsom iav dub kuj muaj lub neej ntev
Cov huab cua kub nyob rau lub caij ntuj sov ua rau ntau tus neeg hnav looj tsom iav dub thaum lawv tawm mus. Cov neeg feem coob hloov lawv cov looj tsom iav dub vim tias lawv tawg, ploj, lossis tsis zam txaus, tab sis muaj lwm qhov laj thawj tseem ceeb uas feem ntau tsis saib xyuas, uas yog, kev laus ntawm cov looj tsom iav dub. Lub peev xwm tiv thaiv UV ntawm looj tsom iav dub yuav maj mam txo nrog kev siv, yog li nws yog qhov tsim nyog los hloov lawv raws sijhawm.
Cov khoom siv tseem ceeb ntawm lub looj tsom iav dub nws tus kheej tuaj yeem nqus tau qee cov kab hluav taws xob ultraviolet, thiab txheej txheej ntawm lub looj tsom iav dub tseem tuaj yeem cuam tshuam ib feem ntawm cov hluav taws xob ultraviolet. Ntau lub looj tsom iav dub tseem yuav ntxiv cov khoom siv ultraviolet-absorbing. Ua li no, feem ntau ntawm cov kab hluav taws xob ultraviolet tuaj yeem "tshem tawm" thiab tsis tuaj yeem ua mob rau peb lub qhov muag.
Tab sis qhov kev tiv thaiv no tsis ruaj khov. Ultraviolet rays nqa lub zog siab, uas yuav ua rau lub hnub nyoog ntawm cov khoom siv looj tsom iav dub thiab txo lub peev xwm ntawm cov khoom xyaw tshuaj pleev thaiv hnub kom nqus tau ultraviolet rays. Qhov ci ntsa iab ntawm sab nraud ntawm cov looj tsom iav dub yog qhov tshwm sim ntawm cov hlau vapor deposition. Cov txheej yuav hnav, oxidize, thiab txo lub teeb pom kev. Cov no yuav txo qhov muaj peev xwm tiv thaiv UV ntawm looj tsom iav dub.
Txhawm rau ua kom cov looj tsom iav ntev ntev, lawv yuav tsum khaws cia rau hauv lub sijhawm thaum tsis siv, kom tsis txhob hnav los yog raug tshav ntuj ncaj qha. Cov phooj ywg uas tsav tsheb yuav tsum tsis txhob muab cov looj tsom iav dub rau ntawm qhov chaw nruab nrab kom pom lawv mus rau lub hnub. Kev khaws cov looj tsom iav ib ntus, nco ntsoov lub ntsej muag kom tsis txhob hnav thiab tsim kua muag. Siv cov ntaub ntawv lossis lub hnab ntim khoom tshwj xeeb no muaj qhov muag sab hauv uas yuav tsis ua rau koj lub qhov muag puas. Tsis txhob muab cov looj tsom iav dub tso rau hauv koj lub hnab ris lossis muab pov rau hauv koj lub hnab ev ntawv. Kev sib txhuam nrog cov yuam sij, hnab nyiaj, xov tooj ntawm tes, thiab lwm yam yuav ua rau cov txheej txheem ntawm cov tsom iav tau yooj yim puas, thiab tuaj yeem cuam tshuam ncaj qha rau tus ncej. Thaum ntxuav looj tsom iav dub, koj tuaj yeem siv cov tshuaj ntxuav tes, tshuaj ntxuav tes thiab lwm yam tshuaj ntxuav tes ua npuas dej los ntxuav lub lens, yaug nws thiab so kom qhuav nrog daim ntaub lo ntsiab muag, los yog siv ncaj qha rau daim ntawv ntub dej tshwj xeeb, uas tsis tshua muaj kev khawb. qhuav wiping mark.
